Answer:
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is 0.10 m.
When the speed of the bottle is 3 m/s, the average maximum height of the beanbag is 0.43 m.
When the speed of the bottle is 4 m/s, the average maximum height of the beanbag is 0.87 m.
When the speed of the bottle is 5 m/s, the average maximum height of the beanbag is 1.25 m.
When the speed of the bottle is 6 m/s, the average maximum height of the beanbag is 1.86 m.
Sorry for not answering early on! If anyone in the future needs help, I got these answers from 2020 egenuity, though I can't post the picture for proof. Stay Safe!
Given the scenario: A 45 kg. object is being pushed north with a force of 8N, and at the same time, it is been pushed east with a force of 6N. What will the magnitude and direction be of the resultant vector?
Answer:
10 N, [tex]53.1^{\circ}[/tex] north-east
Explanation:
The two forces applied on the object are perpendicular to each other, so we can find the magnitude of their resultant by using the Pythagorean theorem:
[tex]R=\sqrt{(6 N)^2 + (8 N)^2}=10 N[/tex]
The direction of the force instead is given by
[tex]\theta = tan^{-1} (\frac{F_n}{F_e})[/tex]
where F_n is the force pointing north, and F_e is the force pointing east, and the angle is measured with respect to the east direction. Substituting,
[tex]\theta=tan^{-1} (\frac{8 N}{6 N})=tan^{-1} (1.333)=53.1^{\circ}[/tex]
a book is sitting on a desk. what best describes the normal force acting on the book
the upward force the desk pushes on the book.
from the free body diagram of the book, it is clear that on the book, there are two forces acting.
1) normal force F by the desk in Upward direction.
2) force of gravity by earth in downward direction.
The Upward normal force by the desk on the book balances the force of gravity by earth in downward direction. that is why the book remains stationary on the desk.
The normal force acting on the book is a supporting force that is equal in magnitude and opposite in direction to the book's weight, keeping it in static equilibrium.
Explanation:A book is sitting on a desk, and the best description of the normal force acting on the book is that it is a supporting force exerted by the desk that is perpendicular to and away from the surface. This force is necessary to support the weight of the book, counteracting the force of gravity and preventing the book from accelerating downwards. Newton's third law of motion tells us that this normal force is equal in magnitude and opposite in direction to the force that the book exerts on the desk, which is its weight due to gravity. In this instance, if the desk exerts an upward force of 32 N, this is because the book's weight (force due to gravity) is also 32 N, resulting in a state of static equilibrium where the net external force on the book is zero.
1.) Balance the following chemical equation: ___KOH + ___H₃PO₄ → ____K₃PO₄ + ___H₂O 2.) Balance the following chemical equation: ___Al(OH)₃ + ___HCl → ___AlCl₃ + ___H₂O 3.) Balance the following chemical equation: ___Fe₂O₃ + ___CO → ___CO₂ + ___Fe 4.) Balance the following chemical equation: ___AgI + ___Fe₂(CO₃)₃ → ___FeI₃ + ____Ag₂CO₃ There are four blanks on each and if there is no coefficient needed place a "1" in the blank
Answer:
The first one put 1's
Explanation:
Newton’s third law of motion says that for every action there is a(n) and opposite reaction
Answer:
Newton's third law of motion says that for every action there is an equal and opposite reaction.
Explanation:
This law explains that when two bodies interact with one another, two forces facilitates this process.These forces are opposite is action but equal in magnitude.For example, when sitting on a coach, the body exerts force on the coach downwards and the coach exerts an upward force on the body.These two forces are the action and reaction forces.
Answer:
Explanation:
Newton's third law of motion says that for every action there is equal magnitude force acting in opposite direction. For example if we push a wall with our hands, the wall will also exert the force of equal magnitude in opposite direction.This is general thing when two bodies interacts with each other they produce same force in opposite direction on each other.
During the Water Wheel simulation you were able to change the flow of water
through the system. The water flow represents
the flow of neutrons
the flow of protons
the flow of electrons
the flow of photons
Answer:
The flow of photons
Explanation:
Final answer:
The flow of water in the Water Wheel simulation represents the flow of electrons, similar to how electrons flow through a circuit.
Explanation:
The flow of water in the Water Wheel simulation represents the flow of electrons. Just like water flowing through a system, electrons can flow through a circuit, powering devices and creating electric current. Changing the flow of water in the simulation is similar to adjusting the flow of electrons in a circuit by changing the voltage or resistance.
A small slope on a velocity vs. time graph indicates a small acceleration
Answer:on apex the correct answer is true
Explanation:
What kind of energy is represented by KE?
Answer:
Explanation:
Depends on what you are measuring.
For example, in Chemistry, KE is measuring temperature. Temperature is the average of all the molecules present and their motion (using a gas as our base).
In physics, KE at beginning levels, is the speed of a moving object.
Which situation describes the highest rate of power
Answer:
B. An engine does 100 joules of work in 2 seconds.
Explanation: I hope u get it right.
Answer: A king
Explanation: A king has a everything he needs to live as long as he lives
Hyphae
a. produce enzymes
b. produce food
c. absorb water
d. perform photosynthesis
Answer :I think it is A
Explanation: because it releases enzymes like saliva to break down certain bacteria to be absorbed as food.
The Doppler effect is the change in
of a wave due to the motion of the source and/or receiver.
Yes indeed, that is a true statement. Truer words are seldom written, and I could not agree with you more.
In case you are asking a question, I can kind of see how this might be a question if there is a blank after "... the change in ..." that is to be filled with one or more new words.
If that is the situation, then the blank can be filled with "frequency or wavelength" .
The Doppler effect is the change in the wavelength (or frequency) of energy in the form of a wave due to the motion of the source and/or receiver.
What is the Doppler effect?Doppler effect is the change in energy wavelength (or frequency) in the form of waves, for example, sound or light.As a result of the motion of either the source or the receiver of the waves, the effect is named for the Austrian scientist Christian Doppler, who demonstrated the effect for sound.If the source of a wave is moving towards a receiver, the frequency at which the waves are received is higher than the frequency at which they are sent out.The formula of the Doppler effect is,f’ = f (c + vr) / (c + vs)
where,
f’ = apparent frequencyf = actual frequencyc = speed of sound waves in the mediumvr = velocity of the receiver/observer with respect to the mediumvs = velocity of the source with respect to the mediumTo know more about the Doppler effect, refer to:
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Carla did an experiment by placing a piece of smooth, clear glass and a piece of smooth, black stone under a lamp for twenty minutes. Which prediction will most likely be supported by Carla’s experimental results?
Answer:
B. The stone will feel warmer than the glass after twenty minutes.
Explanation:
The stone will feel warmer than the glass because the stone absorbs the heat faster than the glass would, anyway the glass would reflect the light away from it.
The correct answer is option b. The prediction which is supported by Carla's experimental result is The stone will feel warmer than the glass after twenty minutes.
Carla's experiment involves placing a piece of smooth, clear glass and a piece of smooth, black stone under a lamp for twenty minutes. The key factors here are the different properties of glass and black stone, particularly their absorption and reflection of light and heat.
Here’s a breakdown of the properties:
- Clear glass: Generally, clear glass allows light to pass through it (transmission) and does not absorb much heat.
- Black stone: Black surfaces tend to absorb most of the light that hits them, converting it into heat.
Given these properties, the prediction that is most likely to be supported by Carla’s experimental results is The stone will feel warmer than the glass after twenty minutes.
This is because the black stone will absorb more light and convert it into heat, making it feel warmer than the glass, which allows most light to pass through it and does not absorb much heat.
The complete question is
Carla did an experiment by placing a piece of smooth, clear glass and a piece of smooth, black stone under a lamp for twenty minutes. Which prediction will most likely be supported by Carla’s experimental results?
a. The glass will feel warmer than the stone after twenty minutes.
b. The stone will feel warmer than the glass after twenty minutes.
c. The glass will reflect all of the light after twenty minutes.
d. The stone will reflect all of the light after twenty minutes.
what must be your average speed in order to travel 350 km in 5.15 hours
350km/5.15 hours~68km per hour
Heat transfer by radiation depends on ____
Answer:
Infrared
Explanation:
This is the electromagnetic spectrum just above the visible light spectrum with higher energy (and higher frequency). This electromagnetic radiation is responsible for feeling the heat when you place your hand close to the side of a fire. It is also harnessed in night vision where bodies that emit some form of heat are visible due to their emission of IR.
Heat transfer by radiation primarily depends on the surface area, the fourth power of the absolute temperature, and the emissivity of the object. This is dictated by the Stefan-Boltzmann law of radiation. All objects based on their temperature difference with the surrounding environment absorb and emit radiation leading to heat transfer.
Explanation:Heat transfer by radiation depends on several factors. The primary ones are the surface area of the object, the fourth power of the absolute temperature, and the emissivity of the object. This can be represented by the equation from the Stefan-Boltzmann law of radiation: = oеAT4, where o is the Stefan-Boltzmann constant, A is the surface area of the object, T is the absolute temperature and e is the emissivity.
All objects release and absorb radiation. The net rate of heat transfer by radiation (absorption minus emission) relates to both the temperature of the object and the surrounding environment. For example, on a sunny day, the radiation from the sun warms your skin, demonstrating the principle of radiative heat transfer.
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Which is a key criterion for the design of an automobile bumper?
A. It must absorb shock.
B. It must improve fuel efficiency.
C. It must be inexpensive to manufacture.
D. It must protect the vehicle's occupants.
I think the answer is A
Answer: The answer is A
Explanation: The bumper is the first part of an automobile to be impacted when in a head-on accident
3. Which type of radiation is used to make images of bones inside the body?
A gamma rays
B X-rays
C infrared rays
D ultraviolet rays
Answer:
B. X-rays!
Explanation:
Which statement about subatomic particles is not true?
A) protons and neutrons have almost the same mass.
B) protons and neutrons have he same charge.
C) unlike protons and electrons neutrons have no charge.
D) protons and electrons have opposite charges.
Answer:
B. is the right answer
A) True. protons and neutrons have almost the same mass.
B) Not true. Booo ! protons and neutrons have the same charge.
C) True. unlike protons and electrons neutrons have no charge.
D) True. protons and electrons have opposite charges.
When particles spread out due to an increase of thermal energy this is called?
This sounds like thermal expansion.
which color lined on the graph shows the population reaching, but not surpassing, carring capacity?
A. line C
B. line B
C. line D
D. line A
The answer would most likely be B because as you see it stops ascending and eventually it’ll just layer out and C would just start it’s way back down the Graig
The color lined on the graph which shows the population reaching, but not surpassing, carrying capacity is line B. The correct option is B.
What is population?The population is the total number of people in a country or region including each and every individual (infants, women and men).
The graph shows various line of increasing population according to the carrying capacity.
Among these graphs, the population is increasing in an all the lined graphs but not surpassing with capacity is line B.
The color lined on the graph which shows the population reaching, but not surpassing, carrying capacity is line B. The correct option is B.
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Explain the increase in pressure of a gas when its volume is decreased at constant
temperature.
Answer:
For a gas held at constant temperature, we can apply Boyle's law, which states that the product between the gas pressure and its volume is constant:
[tex]PV=const.[/tex]
where
P is the pressure
V is the volume
As we see from the equation, P and V are inversely proportional to each other: this means that when the volume is decreased, the pressure increases, and vice-versa. The reason for that is that when the volume is decreased, the gas is compressed, so the molecules of the gas come closer to each other, so they collide more frequently with the wall of the container, exerting therefore a greater pressure.
which of the following is NOT true of vibrations?
a. a non-vibrating object can begin to vibrate as a result of forced vibrations
b. two bodies with the same vibration frequency that are placed next to each other will exhibit sympathetic vibrations as one body causes the other to vibrate
c. resonance occurs as a result of sympathetic vibrations
d. forced vibrations, such as those between a tuning fork and a large cabinet surface, result in much lower sound than was produced by the original vibrating body
Answer:
Forced vibrations, such as those between a tuning fork and a large cabinet surface, result in much lower sound than was produced by the original vibrating body. (d.)
Final answer:
The statement that is NOT true about vibrations is that forced vibrations result in much lower sound than produced by the original vibrating body. In fact, a surface like a cabinet amplifies the sound from a tuning fork.
Explanation:
To determine which of the statements about vibrations is NOT true, let's analyze them one by one:
Forced vibration: This occurs when an external force causes another system to vibrate. This force can have a different frequency than the natural frequency of the system it's driving. An example is when the stem of a vibrating tuning fork is held against a table, causing the table to vibrate; these are indeed forced vibrations.Sympathetic vibration: This happens when two systems have the same natural frequency, and one causes the other to vibrate. For instance, when one tuning fork is struck, another of the same frequency nearby will also start to vibrate due to the sound waves produced, demonstrating sympathetic vibrations.Resonance: It occurs when forced vibrations match the natural frequency of an object, causing it to vibrate with a greater amplitude. This is accurately described by the way air columns in wind instruments like flutes and organ-pipes respond to resonate with the sound waves.It is incorrect to say that forced vibrations result in much lower sound than was produced by the original vibrating body. When a tuning fork is used to create vibrations on a surface such as a cabinet, the large surface can amplify the sound, not diminish it. This is because the larger surface can move more air, producing a louder sound. Therefore, option (d) is NOT true of vibrations.Each of these concepts—forced vibration, sympathetic vibration, and resonance—plays a crucial role in the way objects vibrate and produce sound.
Which of the following is correct scientific notation for the value 0.000537
meters?
O A. 0.537 x 10-3
O B. 53.70 x 103
OC. 537 x 10-8
O D. 5.37 x 10-4
For this case we have the following expression:
[tex]0.000537[/tex]
We must indicate the expression in equivalent scientific notation:
Option A:
[tex]0.537 * 10^{-3}[/tex]
As the exponent is negative we run the decimal point to the left 3 times:
0.000537
The option is correct!
Option B:
[tex]53.70 * 10 ^ 3[/tex]
As the exponent is positive we run the decimal point to the right 3 times:
[tex]53,700[/tex]
The option is not correct!
Option C:
[tex]537 * 10^{-8}[/tex]
As the exponent is negative we run the decimal point to the left 8 times:
0.00000537
The option is not correct!
Option D:
[tex]5.37 * 10^{-4}[/tex]
As the exponent is negative we run the decimal point to the left 4 times:
0.000537
The option is correct!
ANswer:
Option A and D
Answer:
D is correct!
Explanation:
APEX APPROVED
HELP ASAP GIVING BRAINLIEST AND 70 POINTS
Think about the process of heating water, the heating and upward motion of hot steam and air, and a spiral spinning. For these events, list each form of energy associated with the heat source, the water, the steam and air, and spiral. Give an explanation why.
KINETIC ENERGY FORMS:
- Motion energy
- Thermal energy
- Electric energy
- Vibrational energy
- Radiant energy
POTENTIAL ENERGY FORMS:
- Gravitational Potential energy
- Elastic Potential energy
- Chemical Potential energy
- Electric Potential energy
- magnetic potential energy
- nuclear potential energy
Answer: Thermal and Elastic
Explanation:
Answer:
thermal and gravitational potential
Explanation:
because
when we gives thermal energy then
its energy is change into kinetic energy
and
any object goes up then its kinetic energy change into gravitational potential energy
What state of matter is that substance?
Answer:
Explanation:Matter in the solid state maintains a fixed volume and shape, with component particles (atoms, molecules or ions) close together and fixed into place. Matter in the liquid state maintains a fixed volume, but has a variable shape that adapts to fit its container.
Answer:
solid is the answer
Explanation:
Which is NOT an example of an energy conversion?
A. Electrical energy runs through a wire to a 60 Watt bulb producing light.
B. The chemical energy in one metric ton of crude oil is equivalent to 42 billion Joules of energy.
C. Potential energy in a boulder situated 10 m above the ground becomes kinetic energy as it falls.
D. The chemical energy in an apple changes to 45 J of mechanical energy in the contraction of a bicep muscle.
What is energy?
A. The ability to do work
B. The force acting on an object
C. The product of mass and acceleration
D. The rate of change of the speed of an object
Which of the following statements about energy is correct?
A. Energy is a vector quantity.
B. Energy is the force used to move an object.
C. Energy is required to set an object in motion.
D. Energy can be stored, but it can never be transformed or transferred.
When you look at a process using the point of view of energy as opposed to the point of view of forces, typically
A. you use the exact same equations.
B. you predominantly use vector quantities.
C. you use more math, but it's less abstract.
D. you use less math, but it's more abstract.
Answer:
1 A
2 D
3 D
Explanation:
i hope this helps
Answer:
Option-(A): Electrical energy runs through a wire to a 60 Watt bulb producing light.Option-(A): The ability to do work.Option-(B,C): Energy is the force used to move an object, and Energy is required to set an object in motion.Option-(B): You predominantly use vector quantities.Explanation:
Energy:
The basic capacity or the element which is required to transfer the amount of data or the information or any sort of elements from the point of generation to the point of destination is called as the energy.
While, the Energy,E is basically the concept of storing the amount or level of capacity inside a source or it can be transferred from the point of generation to the point of its source or destination. It is a scalar quantity just because the two vector quantities the time,t and the force,F gives rise to the scalar quantity known as the energy,E.
The energy,E is transferred from one point to another.While, each object in this universe has some mass,m while the objects can be moved from one point to another when the energy,E stored inside the object is transferred from its stored form into motion.
Which vertebrate lays its eggs on land?
a. lizard
b. frog
c. newt
d. catfish
Answer: A lizard :)
Explanation:Frogs lay there eggs in the water for example a underwater stick. Newts also lay there eggs underwater or in a underwater enviroment. And catfishes also lay they eggs under water. Where i live (Florida) there are millions of lizards and sometimes i find them on the ground or on land. I also did some research and its a fact that lizerds do in fact lay there eggs on the ground.
I really hope this helps have a great rest of your day :) :) :) :) :)
Help Please!!!
(a) What is the force of gravity between two 1170 kg cars separated by a distance of 28 m on an interstate highway?
___________ N
Answer:
[tex]1.16\cdot 10^{-7} N[/tex]
Explanation:
The force of gravity between two objects is given by:
[tex]F=G\frac{m_1 m_2}{r^2}[/tex]
where
G is the gravitational constant
m1, m2 are the masses of the two objects
r is their separation
In this problem, we have
m1 = m2 = 1170 kg is the mass of each car
r = 28 m is their separation
Substituting,
[tex]F=(6.67\cdot 10^{-11} )\frac{(1170 kg)^2}{(28 m)^2}=1.16\cdot 10^{-7} N[/tex]
Force is the product of mass and acceleration. The Force between the two-car is 1.1646 x 10⁻⁷ N.
What is force?Force can be defined as an influence that can change the motion of an object. It can be given by the formula,
F = m x a
Given to us
Masses of the car, m = 1170 kg
Distance between the car, d = 28 m
We know that according to the force of gravity,
[tex]F = G\dfrac{m_1m_2}{d^2}[/tex]
G = gravitational constant (6.67 × 10⁻¹¹ N·m²/kg²),
m₁ = mass of object 1
m₂ = the mass of object 2
d = distance between two objects
Substitute the values,
[tex]F = (6.67 \times 10^{-11})\dfrac{1170 \times 1170}{28^2}\\\\F = 1.1646 \times 10^{-7}\ N[/tex]
Hence, the Force between the two-car is 1.1646 x 10⁻⁷ N.
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2 Polnts
What type of device forms images by changing the direction
but not the speed at which light travels?
O A. Any convex device
O B. Any lens
O C. Any concave device
O D. Any mirror
SUBMIT
Answer:
D. Any mirror
Explanation:
The main difference between mirrors and lenses is the following:
- Mirrors work based on the principle of reflection: reflection occurs when a light ray hits a surface and it bounces back in the same medium changing direction, withouth crossing the interface between the two mediums. In this case, the speed of the light ray does not change, since it depends only on the refractive index of the medium, n:
[tex]v=\frac{c}{n}[/tex]
where c is the speed of light in vacuum: and since the light ray is reflected into the same medium, n does not change, so the speed does not change.
- Lenses work based on the principle of refraction: refraction occurs when a light ray crosses the interface between two mediums, changing direction. However, in this case the speed of the ray also changes: in fact, the ray is now in a different medium, so according to the equation
[tex]v=\frac{c}{n}[/tex]
the speed of the light ray has also changed.
Therefore, the correct answer is
D. Any mirror
Answer:
D. any lens - a p e x
racquetball strikes a wall with a speed of 30 m/s and rebounds in the opposite direction with a speed of 26 m/s. The collision takes 20 ms. What is the average acceleration of the ball during the collision with the wall?
Vo = 30 m/s Vf = 26 m/s, t = 20ms = 0.02s
A = Vo + Vf / t
A = 30 + 26 / 0.02
A = 56 /0.02
A = 2800 m/s^2
The average acceleration of the racket is 2,800 m/s²
The given parameters include;
initial speed of the racket, u = 30 m/s
recoil velocity of the racket, v = 26 m/s
time of collision, t = 20 m/s
To find:
the average acceleration of the racketLet the backward or recoil velocity be in negative direction
The average acceleration of the racket is calculated as;
[tex]average \ acceleration \ =\frac{\Delta \ velocity}{\Delta \ time} = \frac{v - u}{t} \\\\average \ acceleration \ = \frac{-26 - 30}{20 \times 10^{-3}}= \frac{-56}{20 \times 10^{-3}} = -2,8 00\ m/s^2\\\\magnitude \ of \ average \ acceleration = 2,800 \ m/s^2[/tex]
Thus, the average acceleration of the racket is 2,800 m/s²
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Which pair of properties apply to both sound and electromagnetic waves?
A) Both waves carry energy and refract.
B) Both waves are longitudinal and carry energy.
Eliminate
C) Both waves are transverse and need a medium.
D) Both waves carry energy and do not need a medium to travel through.
The answer would be A because sound waves and electomagnetic waves carry energy and they can both refract.
Answer: A. Both waves carry energy and refract.
Explanation: Rarefaction is where vibrating particles are spread apart.
11. What causes potential energy that accumulates in a fault to transfer to the surface during an
earthquake?
O A. Refraction
O B. Seismic waves
O C. Lithostatic pressure
O D. Triangulation
Answer: your answer is B
Explanation: Seismic waves causes potential energy that accumulates in a fault to transfer to the surface during an earthquake.
Answer: Seismic waves