Can you complete and EXPLAIN please?????:(

Answer:

9.26 cm, 22.7 cm, 3.20 m/s

Explanation:

In a plane mirror, the image and object have the same height.  So h = 9.26 cm.

In a plane mirror, the image distance is the same as the object distance.  So x = 22.7 cm.

Since the distance between an object and a plane mirror is the same as the distance between the mirror and the image, then the distance between you and the image is double the distance between you and the mirror.  If you move away from the mirror at 1.60 m/s, the image will move away from you at double that speed, or 3.20 m/s.

because if the bus goes to stop or go that person would be injured badly that is y the bus driver tells u to sit down

Most of the weight of standees is from their feet, which are on the floor, so they should be raising the center of gravity much.

I think just the added weight of standees makes the bus suspension less able to control sway and lean. Going into a curve or skid with more passengers means a better chance of rolling.

I've taken some curves with what we called a "full swinging load" that made my hair stand on end the bus leaned over so far.

Really busses can lean pretty far without going over. Another fun thing is if the air suspension bellows blow out on one side or a front tire blows out. Definitely gets your attention and not just because the passengers are screaming.

Going back to center of gravity, if the bus sways or leans on a curve and more of the passengers weight is transferred to the overhead bar that might make a difference, once the lean gets bad because of the weight in general.

Answer:

Explanation:

The answer is neutrons and protons. The proton for example is composed of 3 quarks with charges of 2/3 + 2/3 - 1/3 which gives an overall  charge of 1.

Neutron are composed of 2 quarks that are - 1/3 in charge and 1 that has a charge of 2/3. The overall charge is 0.

Answer:

Explanation:

B would be most reasonable

The average speed of Joe's fastball correct SI unit is m/s.

Answer: C

Explanation

According to the problem given, the baseball thrown by Joe reaches the catcher's glove within the blink of audience's eyes.

Generally, human beings tend to blink their eyes every second to some minutes.

So as the ball reaches the catcher's glove within blink of eye that means the motion of the ball starting from thrown by Joe and ending at catcher's glove is completed within seconds. So the speed of the ball is in seconds.

As the catcher will be positioned at some meter distance so the distance traveled will be in meter in SI unit.

So the rate of change of distance per unit second is termed as velocity.

Thus the average speed will be recorded in m/s unit.

Opposite Poles in Magnets Attract Each-other

Answer: For number 9, the children would not be able to close the box.

Explanation: The combined force of the children is 55 N. The box spring overpowers them with 60 N. I hope this helps!

The Work [tex]W[/tex] done by a Force [tex]F[/tex] refers to the release of potential energy from a body that is moved by the application of that force to overcome a resistance along a path.  

It should be noted that it is a scalar magnitude, and its unit in the International System of Units is the Joule (like energy). Therefore, 1 Joule is the work done by a force of 1 Newton when moving an object, in the direction of the force, along 1 meter:  

[tex]1J=(1N)(1m)=Nm[/tex]  

Now, when the applied force is constant and the direction of the force and the direction of the movement are parallel, the equation to calculate it is:  

[tex]W=(F)(d)[/tex] (1)

When they are not parallel, both directions form an angle, let's call it [tex]\alpha[/tex]. In that case the expression to calculate the Work is:  

[tex]W=Fdcos{\alpha}[/tex] (2)

For example, in order to push the 200 N box across the floor, you have to apply a force along the distance [tex]d[/tex] to overcome the resistance of the weight of the box (its 200 N).  

In this case both (the force and the distance in the path) are parallel, so the work [tex]W[/tex] performed is the product of the force exerted to push the box [tex]F=50N[/tex] by the distance traveled [tex]d[/tex]. as shown in equation (1).

Hence:

[tex]W=(50N)(20m)[/tex]  

[tex]W=1000Nm=1000J[/tex] >>>>This is the work  

Answer:

The lowest energy of electron is the ground state.

Explanation:

The excited electrons has the lowest energy when it is in the ground state.

The electrons are the spinning objects around the nucleus of the atom of the element in an orbit.

Energy of any exited state is given by E = nh/2π where n =0,1,2,3....

As, the number of excited state increases the energy associated with the  electron increases.

So, for n=0, the energy is the lowest and is said to be in the ground state.

Thus, the correct option is B.

Learn more about electrons.

https://brainly.com/question/1255220

#SPJ2

The answer is Your mouth or nose

Answer ======= the mouth/nose.

Answer:

New technology allowed microscopes to make it easier to view things that had never been seen before, such as cells.

Explanation:

Answer:

BCDE

Explanation:

Answer:

Magic school bus on ya left! so basically a star is born when like....atoms are like squeezed with enough pressure and kinda squished together, once tht happens the atoms start to fuse together

Explanation:

A star is born when nuclear fusion reactions begin in its core, transforming a protostar into a stable, shining star. This occurs in giant clouds of gas and dust called nebulae.

The birth of a star marks the moment it becomes hot enough for nuclear fusion reactions to take place at its core. This process begins in giant, cold clouds of gas and dust called nebulae. As the cloud collapses under its own gravity, it forms a protostar.

When the core temperature of the protostar reaches about 10 to 12 million K, hydrogen atoms begin to fuse into helium, releasing vast amounts of energy and causing the star to shine. This fusion marks the birth of a new star, which then becomes stable and enters what is known as the main sequence phase of its life, where it spends most of its time.

In simpler terms, the birth of a star is the point at which it starts producing its own energy through fusion, much like a human child begins to sustain itself independently after birth.

Answer:

945 j

Explanation:

You have just given the ball kinetic energy, which is given by the following equation:

KE= 1⁄2 m v2 = 1⁄2 (2.1 kg)(30 m/s)2 = 945 Joules

Explanation:

The given data is as follows.

        Final velocity (v) = 8.62 m/s,         Initial velocity ([tex]v_{o}[/tex]) = ?

         time = 8.25 sec,          distance (s) = 12.9 m

Hence, formula to calculate the initial velocity is as follows.

                   v = [tex]v_{o} + a \times t[/tex]

                 8.62 m/s = [tex]v_{o} + a \times 8.25 s[/tex]

                [tex]v_{o}[/tex] = 8.62 m/s - 8.25a ......... (1)

Also,   s = [tex]v_{o} \times t + \frac{1}{2}a \times t^{2}[/tex] ...... (2)

Therefore, substitute the value of [tex]v_{o}[/tex] from equation (1) into equation (2) as follows.

                s = [tex]v_{o} \times t + \frac{1}{2}a \times t^{2}[/tex]

               s = [tex]8.62 m/s - 8.25a \times t + \frac{1}{2}a \times t^{2}[/tex] ....... (3)  

Now, putting the values of s and t into equation (3) as follows.

         s = [tex]8.62 m/s - 8.25a \times t + \frac{1}{2}a \times t^{2}[/tex]  

        12.9 m = [tex](8.62 m/s - a \times 8.25sec) \times 8.25 s + \frac{1}{2}a \times (8.25 sec)^{2}[/tex]  

               a = 1.71 [tex]m/s^{2}[/tex]  

Therefore, using equation (1) the value of initial velocity will be as follows.

                      [tex]v_{o}[/tex] = [tex]8.62 m/s - 8.25 sec \times a[/tex]

                              = [tex]8.62 m/s - 8.25 sec \times 1.71 m/s^{2}[/tex]

                              = -5.49 m/s

Thus, we can conclude that starting velocity of the car is -5.49 m/s.

Answer:

-5.49 m/s

Explanation:

I just had this same question on my Acellus Academy physics course for 9th grade. Hope this helps ;)

Answer:

Explanation:

Resolving the parallel resistor branches

[tex]\frac{1}{Rtotal} =\frac{1}{8.0ohm} +\frac{1}{8.0ohm} +\frac{1}{8.0ohm} =2.67Ohm[/tex]

The equivalent resistor is now in series with the 2.0 Ohm resistor

so, by using Ohm's Law

[tex]I=\frac{V}{Rtotal+R} \\I=\frac{20.0V}{2.67Ohm+2.0Ohm} \\\\I= 4.28A[/tex]

Answer:

75

Explanation:

Power is current times voltage:

P = IV

Voltage is current times resistance:

V = IR

Therefore:

P = I²R

Given I = 0.62 A and R = 195 Ω:

P = (0.62 A)² (195 Ω)

P ≈ 75 W

D) waves are used to transmit the rail signal though the air. these waves are encoded at different frequencies for different stations

Answer:

The correct answer is D.

Explanation:

The radio can pick up several different stations because the waves are used to transmit the radio signal through the air. These waves are coded at different frequencies, assigned to different radios. The waves do not mix, so we can tune several radio stations.    

Have a nice day!

3.

If the reaction forms a new substance it's a chemical reaction.

Frequency = (speed) / (wavelength)

Frequency = (5.6 m/s) / (3.3 m)

Frequency = (5.6 / 3.3) per sec

Frequency = 1.7 Hz

Answer:

8bfdyg8oea

Explanation:

Final answer:

Periods on the periodic table are horizontal rows that reflect the number of electron shells of elements, which range from 1 to 7. As you move across a period, the number of electrons increases. In contrast, groups are vertical columns where elements share the same number of valence electrons, leading to similar chemical properties.

Explanation:

In the context of the periodic table, periods are horizontal rows that define the arrangement of elements. These periods range from left to right and are numbered 1 through 7, starting at the top of the table. Periods indicate the number of electron shells an element has, with each period beginning when a new principal energy level commences to fill with electrons. For instance, period 1 has only two elements: hydrogen and helium. Other periods have more elements, reflecting additional electrons filling the subsequent principal energy levels.

The elements within a period have the same number of electron shells, but as you move from left to right across the table, the number of electrons in the outer shell increases for the elements. This progression affects their chemical and physical properties. When it comes to groups, the vertical columns of the periodic table, elements in the same group have identical numbers of electrons in their valence shell, contributing to similar chemical behavior.

Answer:

B. 0.16 m

Explanation:

The vertical distance by which the player will miss the target is equal to the vertical distance covered by the dart during its motion.

Since the dart is thrown horizontally, the initial vertical velocity is zero:

[tex]v_y = 0[/tex]

While the horizontal velocity is

[tex]v_x = 15 m/s[/tex]

The horizontal distance covered is

[tex]d_x = 2.7 m[/tex]

Since the dart moves by uniform motion along the horizontal direction, the time it takes for covering this distance is

[tex]t=\frac{d_x}{v_x}=\frac{2.7 m}{15 m/s}=0.18 s[/tex]

along the vertical direction, the motion is a uniformly accelerated motion with constant downward acceleration g=9.8 m/s^2, so the vertical distance covered is given by

[tex]d_y = \frac{1}{2}gt^2=\frac{1}{2}(9.8 m/s^)(0.18 s)^2=0.16 m[/tex]

Answer:

0.16 m

Explanation:

Answer:

The total resistance is 15 Ω, the total current is 1A, The potential drop in R1 and R2 are 10V and 5V respectively and the total power develped is 15 W.

Explanation:

First it is necessary to simplify the circuit. We can do this by calculating the total or equivalent resistance Re. For series resistance arrangement, Re is computed as:

RT = R1 + R2 = 5 Ω + 10 Ω = 15 Ω

According to Ohm’s law the total current can be calculated dividing the total voltage V by Re:

I = V/Re = 15V/15Ω = 1A  

This current will be the same current through R1 and R2. Then we can compute the potential drop across R2 multiplying the current across R1 by the resistance:

VR1 = I*R2 = 1 A * 10 Ω = 10 V  

The potential drop across R2 is obtained in the same way as R1, considering R2 resistance:

VR2 = I*R1 = 1 A * 5Ω = 5 V

The total power could be calculated multiplying the total current I by the total voltage:

P = I*V = 1 A * 15 V = 15 W

Calculations related to the flow of current, potential drop, power and total resistance in a circuit can be determined through the application of Ohm's Law and Power formulas. Specific values are needed for exact calculations.

In order to calculate the current, potential drop, total power developed, and total resistance in a circuit, we first need to understand some basic physics concepts. The current passing through a resistor, like R1 or R2, can be calculated using Ohm's Law, which states: Current (I) = voltage (V) / resistance (R). Similarly, the potential drop across a resistor can also be determined using Ohm's law: Potential Drop = Current * Resistance. Lastly, total power developed in a circuit can be determined using the formula: Power (P) = Voltage * Current, and total resistance can be obtained using the appropriate formula based on whether the resistors are connected in series or in parallel. Without specific values provided for voltage, resistance, or current, exact calculations cannot be done here.

https://brainly.com/question/31824668

#SPJ6

C. The sun heats earth and it’s oceans unevenly.

Hope this helps chu

Have a great day

☆ Dont forget to mark brainliest ☆

Answer:

The correct answer is option C. "The sun heats earth and it’s oceans unevenly".

Explanation:

Ocean water is warmer around the equator than the currents that come farther south of the equator. This phenomenon happens because the sun heats earth and its oceans unevenly since the amount of energy that reaches the Earth is a function of latitude. The equator has a 0 degree latitude, and is at this point at which the Earth receives more heat from the Sun

To determine if the light reflected from the surface of a pool of water is polarized, you can use a polarizer and observe if any changes occur when the polarizer is rotated.

A polarizer is a virtuously optical device that can convert an unpolarized light beam into a polarised light beam in some way.

Here,
To determine if the light reflected from the surface of a pool of water is polarized, you can use a polarizer and observe if any changes occur when the polarizer is rotated.

Learn more about polarizer here:
https://brainly.com/question/29217577
#SPJ6

It would be c repeated processes-that are used in a variety of ways

Answer:

the correct answer would be D. A variable or alteration to one part that affects an entire system.

the other ones dont make sense

~batmans wife dun dun dun....

The answer is 20,260,000

Answer:

Step By Step Explanation:

Dirt samples from clothing to anikise the types then match to the soil of hypothetical location

Answer:

It is half the field strength at 0.5cm

Explanation:

Final answer:

The magnetic field at 0.5 cm from a current-carrying wire would be twice as strong as the field at 1 cm, based on the inverse proportional relationship between magnetic field strength and distance from the wire.

Explanation:

The magnetic field strength around a current-carrying wire follows an inverse relationship with distance, meaning as the distance from the wire increases, the magnetic field strength decreases.

Since the magnetic field at 1 cm is twice as strong as at 2 cm, we can conclude that the field follows an inverse proportional relationship with distance in this region (ignoring the complex equations at very close distances). Therefore, at half the distance from the wire (0.5 cm), the field strength would be twice as much compared to at 1 cm. This is because if doubling the distance (from 1 cm to 2 cm) halves the field, then halving the distance (from 1 cm to 0.5 cm) should double the field strength.

Answer:

A. polymerization

Explanation:

Synthetic plastics are made by linking many simple carbon molecules together to form much larger molecules. This process is called polymerization.

Synthetic or artifical giant molecules consists of synthetic polymers such as plastics, elastomers etc. They are made up of simple monomers which links to form the complex and giant structure.

Monomers are the simplest unit of polymers. Polymers have very great sizes. The size mkaes their structure quite complex. This makes the molecules more disposed in a regular pattern with respect to one another.

The complexity of structure and the attendant effects accounts for the properties and uses that makes synthetic molecules very unique. For example, plastics can be extruded as sheets, pipes and or moulded into other objects.

Answer:

A. Polymerization

Explanation:

Penn Foster

Answer:

750 mph, east

Explanation:

The jetliner is going from San Francisco to Chicago... so it's moving from West to East, at 600 mph, relative to the air.

The wind is also moving from West to East, at 150 mph.

Since both are going in the same direction, we combine the speeds by adding them to each other.  If they were in opposite direction, we would subtract them.

So, 600 mph for the plane + 150 mph for the wind = 750 mph, going EAST.

The velocity of the jetliner relative to the earth, considering a wind blowing at 150 mph from the west to the east, is 750 mph, east.

In this scenario, the jetliner's velocity relative to the earth can be calculated by adding the velocity of the jetliner relative to the air (600 mph to the east) and the velocity of the wind (150 mph to the east). This means that the jetliner and the wind are moving in the same direction (east), you would add their speed together.

Performing the addition: 600 mph (jetliner's speed) + 150 mph (wind's speed) = 750 mph.

Since wind and jetliner are moving to the East, the correct answer to the question 'What is the velocity of the jetliner relative to the earth?' is 750 mph, east.

https://brainly.com/question/39711173

#SPJ3