i think it is A-it does not consist of matter
if an object is moving then the magnitude of it _____ cannot be zero
A. speed
B. velocity
C. acceleration
B. A and B
E. A,B, and C
Heather puts a straw into glass of water. She notices that when she looks through the glass and the water from the side, the straw appears to be broken. Which term best explains why the straw looks like it broken? A. Absortion B. Refraction C. Scattering D. Transmission
Answer:
Refraction
Explanation:
velocity is a description of both speed and direction therefore it is________
the same as acceleration
a vector
a force arrow
a magnitude
Answer: a vector
Explanation:
In physics, there are two types of quantities:
- scalars: scalar quantities are characterized by a magnitude only. Examples of scalars are: mass, time, length, and speed
- vectors: vector quantities are characterized by both a magnitude and a direction. Examples of vectors are: force, displacement, and velocity.
Velocity, in fact, is a vector, because it includes:
- a magnitude, which is the speed, given by the ratio between displacement and time taken: [tex]v=\frac{s}{t}[/tex]
- a direction
A certain organic compound is made up of the amino acids methionine, arginine, and leucine. Which type of organic compound is this?
B. The-protein---------
A student is trying to calculate the density of a can. He already knows the mass, but he needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the can?
To calculate the density of a can, the student must first determine its volume, which can be done using the formula for the volume of a cylinder V = πr²h or through displacement methods. Once the volume is known, density is calculated by dividing the mass by the volume.
Explanation:To calculate the density of a can, the student needs to determine its volume. The volume of a cylindrical can be calculated using the formula for the volume of a cylinder, which is π (pi) times the radius squared times the height (V = πr²h). The student already knows the mass of the can, so once the volume is calculated, density can be found by dividing the mass by the volume
The formula provided (D = m/V) can also be transformed to solve for volume, providing another formula: Volume (V) = Mass (m) divided by Density (D).
In cases where the volume needs to be found through displacement, the formula V = m/p (where p is the density) is used, such as determining the volume of a coin by the water displacement method.
How would the seasons change if the earth were tilted at 90 degrees instead of 23.5?
What are some non examples of prokaryotic cells?
Prokaryotic cells are cells without a nucleus. Non-examples of prokaryotic cells include eukaryotic cells, archaea, green non-sulfur bacteria, and purple non-sulfur bacteria.
Explanation:Prokaryotic cells are cells without a nucleus. They are found in single-celled organisms, such as bacteria. Non-examples of prokaryotic cells include eukaryotic cells, which have a nucleus, and some archaea (Halobacterium), green non-sulfur bacteria, and purple non-sulfur bacteria.
Learn more about Non-examples of prokaryotic cells here:https://brainly.com/question/2456195
#SPJ12
jim makes an electromagnet by wrapping a copper wire around a nail and then connecting it to a battery. if he brings the end of the nail near a pile of paper clips, which of the following will happen?
the paper clips will be magnetically attracted to the nail
Which of the following is the best example of proper hypothesis?
A. I think there is no effect on hearing if you listen to loud music only 3 hours a day.
B. Children who wear backpacks do better academically.
C. Orange popsicle taste sweeter than grape popsicles.
D. If two object are dropped at the same height ,the heavier objectwill got first.
I believe that the correct answer is D
what is the amplitude and wavelength of the wave shown below? A. Amplitude: 15 cm; wavelength: 150 cm B. Amplitude: 30 cm; wavelength: 150 cm C. Amplitude: 30 cm; wavelength: 200 cm D. Amplitude: 150 cm; wavelength: 30 cm
Answer: The amplitude is 15 cm and wavelength is 150 cm.
Explanation:
The wavelength is the distance between two consecutive compression.
The amplitude is the maximum displacement of the wave.
According to the figure,
This wave is longitudinal wave.
So, The amplitude is 15 cm approximate.
Now, the wave length will be
The wavelength is the distance between two consecutive compression is
[tex]\lambda=d_{2}-d_{1}[/tex]
[tex]\lambda= 150-0[/tex]
[tex]\lambda=150\ cm[/tex]
Hence, The amplitude is 15 cm and wavelength is 150 cm.
The amplitude here is 15 cm, where the wavelength is 150 cm.
What are amplitude and wavelength?The amplitude refers to the height that a wave has, which is measured from the peak of the wave to its lowest point.
Wavelength can be defined as the exact length of a wave from its peak to another peak point.Both amplitude and wavelength are measured as distance (here in centimeters).In conclusion, the amplitude here is 15 cm, where the wavelength is 150 cm.
Learn more about amplitude and wavelength here:
https://brainly.com/question/4303839
a 500 G ball and a 200 g or dropped from a tower. Those balls are the same size and there is no air resistance. Which one hits the ground first?
the 500 g
the 200g
they both hit at the same time
Ignoring air resistance, both the 500g ball and the 200g ball will hit the ground at the same time. This is due to the principle confirmed by Galileo that all objects fall with the same acceleration due to gravity, regardless of their mass.
Explanation:Based on the principles of physics and specifically the law of gravity, both the 500g ball and the 200g ball would hit the ground at the same time if air resistance is negligible. This surprising fact was experimentally proven by Galileo Galilei who demonstrated that all objects—regardless of their mass—fall towards the Earth with the same constant acceleration when there's no air resistance or friction to slow down their descent. In other words, the mass of the objects does not affect the time it takes for them to reach the ground when dropped from the same height in a vacuum.
For instance, consider the famous demonstration on the moon by astronaut David R. Scott in 1971, he dropped a hammer and a feather in the vacuum of space and both hit the lunar surface at the same time, proving that the acceleration due to gravity impacts all objects equally, regardless of their mass, when there is no air resistance.
However, in the real world where air resistance exists, a lighter object can fall slower than a heavier object of the same size. But for this particular scenario where air resistance is considered negligible, both the 500g and 200g balls would indeed hit the ground simultaneously.
Learn more about Gravity here:https://brainly.com/question/31321801
#SPJ2
A rock is thrown horizontally at a speed of 5.0 m/s from the top of a cliff 64.7 m high. The rock hits the ground 18.0 m from the base of the cliff. How would this distance change if the rock was thrown at 10.0 m/s?
Sample Response: If the rock was thrown at 10.0 m/s, the rock would land twice as far from the cliff as it did previously.
Explanation:
who are a congressional representative's Constituents
A congressional representative's constituents are the people whom they are elected to represent. The representatives' interactions with their constituents can be based on a delegate or trustee approach, where either they enact the wishes of their constituents or make decisions using their judgment while bearing their constituents' interests in mind. The task of effectively balancing their constituents' needs and concerns with the larger national landscape is a central facet of a representative's role.
Explanation:A congressional representative's constituents are the people whom they are elected to represent in their district. This relationship between the representatives and their constituents takes various forms, including the delegate model of representation, where legislators act based on the preferences of their constituents. The representative may share demographic and other characteristics with their constituents, allowing them to better understand and address the specific needs and concerns of their community.
The relationship between a representative and the constituents can be influenced by multiple factors, including whether the representatives view themselves as delegates or trustees. In the delegate model, representatives see their role as enacting the wishes of their constituents, which they must identify and then vote accordingly. Representatives can also adopt the approach of 'trustee,' where they use their judgment to make decisions on behalf of their constituents. Either way, a representative's paramount duty is to address the concerns of their constituents.
However, the needs of the constituents must be balanced with the demands of the larger political landscape, which can cause tensions. The ability of a representative to maintain this balance - of being part of a national legislative body and being a representative of a smaller community - is crucial to their success in their role. Nonetheless, every member of a legislature has an obligation to their constituents, and their efforts to serve them form a significant part of their duties.
Learn more about Congressional Constituents here:https://brainly.com/question/14408651
#SPJ12
Two blocks connected by a rope of negligible mass are being dragged by a horizontal force (see figure below). Suppose F = 65.0 N, m1 = 14.0 kg, m2 = 26.0 kg, and the coefficient of kinetic friction between each block and the surface is 0.098
Determine the acceleration of the system
Final answer:
To find the system's acceleration, subtract the total frictional force from the applied force and divide by the total mass. The acceleration is calculated to be 0.665 m/s².
Explanation:
The question asks to determine the acceleration of a system comprising two blocks connected by a rope, being dragged by a horizontal force. Given are the total force (F = 65.0 N), the masses of the two blocks (m1 = 14.0 kg and m2 = 26.0 kg), and the coefficient of kinetic friction (μ = 0.098).
To find the acceleration, we need to consider the net force acting on the system, which involves subtracting the force due to friction from the applied force. The force of friction (f) can be calculated using f = μ * m * g, where g is the acceleration due to gravity (approximately 9.8 m/s²). Hence, the total mass (m) of the system is m1 + m2 = 40.0 kg, resulting in a total frictional force of f = 0.098 * 40.0 * 9.8 = 38.4 N.
The net force (Φ) acting on the system is therefore the applied force minus the frictional force, which is 65.0 N - 38.4 N = 26.6 N. The acceleration (a) can be found using Newton's second law (Φ = m * a).
Thus, the acceleration of the system is a = Φ / m = 26.6 N / 40.0 kg = 0.665 m/s².
A student practicing for a cross country meet runs 250 m in 30 s. What is her average speed?
When a student practicing for a cross country meet runs 250 m in 30 s, then her average speed would be 8.33 m/s.
What is speed?The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object.
The mathematical expression for speed is given by
speed = total distance /Total time
As given in the problem a student practicing for a cross country meet runs 250 m in 30 s,
Total distance covered by the student while running = 250 m
Time is taken by the student while running = 30 seconds,
Her average speed = 250/30
=8.33 m/s.
Thus. her average speed would be 8.33 m/s.
Learn more about speed from here, refer to the link;
brainly.com/question/7359669
#SPJ2
A 1250 kg car is moving down the highway with a velocity of 32.0 m/s when it bumps into the car ahead of it which has a mass of 875 kg and a velocity of 25.0 m/s. After the collision, the two cars stick together. What will be the resulting velocity of the two cars together? How much energy will be lost in this collision?
The resulting velocity of the two cars can be found using the conservation of momentum equation, while the energy lost in the collision can be determined by comparing the initial and final kinetic energies.
Explanation:The resulting velocity of the two cars together can be calculated using the principles of conservation of momentum. The total momentum before the collision is the sum of the individual momenta of the cars. After the collision, the two cars stick together, so their combined mass is the sum of their individual masses. By applying the conservation of momentum equation, we can find the resulting velocity of the two cars together.
To calculate the energy lost in the collision, we need to find the initial kinetic energy of the system and the final kinetic energy of the combined cars. The initial kinetic energy is the sum of the kinetic energies of the individual cars, and the final kinetic energy is the kinetic energy of the combined cars. The difference between the initial and final kinetic energies gives us the energy lost in the collision.
How would you describe the relationship between the mass of a car and its kinetic energy? A) As the mass of a car increases, its kinetic energy increases. B) As the mass of a car increases, its kinetic energy decreases. C) As the mass of a car decreases, its kinetic energy increases. D) There is no clear relationship between mass and kinetic energy.
Answer:
The answer is A.As the mass of a car increases, it's kinetic energy increases.
Explanation:
in a communist economic system the production and distribution of goods is determined by
Predictions about the future based on the position of planets is an example of
Answer: Astrology
Astrology is the study of the position and movement of planets, sun, moon and stars which affect the lives and character of an individual. It claims to predict the future events of the living individual as well as the natural events that may occur in it's surrounding environment. The roots of astrology comes from calendrical systems which can help in predicting the seasonal shifts and to interpret the celestial cycles of the objects in space.
will atoms of a given element have the same mass
Answer:
yes
Explanation:
YES GIVE ME BRAINLEST
How do you all the earth spheres interact in order to influence weather and climate
Final answer:
Earth's weather and climate are shaped by the intricate interactions among the atmosphere, hydrosphere, lithosphere, and biosphere. Changes in solar radiation, Earth's orbit, atmospheric and ocean circulation, as well as air temperature and precipitation patterns, are all factors that contribute to these dynamic systems.
Explanation:
Interaction of Earth's Spheres Influencing Weather and Climate
The interactions among Earth's spheres - the atmosphere, hydrosphere, lithosphere, and biosphere - are fundamental in shaping our planet's weather and climate. The hydrosphere plays a critical role in weather patterns through the water cycle, which involves the evaporation of water, its journey through the atmosphere, and its return to Earth as precipitation. Variations in solar radiation, influenced by Earth's rotation, orbital changes, and Milankovitch cycles, contribute to climate patterns and can cause significant changes over time.
Scientific disciplines such as meteorology, climatology, and atmospheric science integrate chemical principles to understand and predict weather. Meteorologists analyze air pressure, temperature, and other factors to create short-term forecasts, crucial for safety and economic planning. On a larger scale, the movement of continents over millions of years affects ocean and atmospheric circulation, thus influencing long-term climate evolution. Additionally, variations in the Sun's energy and Earth's orbital patterns can lead to warming or cooling trends, impacting global climate systems.
Temperature and precipitation are directly affected by climate change. Increased temperatures lead to more evaporation and a higher capacity for the atmosphere to hold water vapor, which can result in altered precipitation patterns. This complex interplay between Earth's systems defines the intricate relationship between weather and climate.
what are the states of matter?put in order from highest energy level to lowest
The image shows the displacement of a motorboat. The data table shows the magnitudes of the components of each displacement vector.
What is the value of Rx?
km
What is the value of Ry?
km
[tex]R_x = A_x + B_x + C_x[/tex]
[tex]A_x[/tex] is negative as the vector is in third quadrant.
[tex]B_x[/tex] is positive as it points in the first quadrant.
[tex]C_x[/tex] is positive as it points in the fourth quadrant.
Hence,
[tex]R_x = -1.6 + 3.9 + 1.2[/tex]
[tex]R_x = 3.5[/tex] km
[tex]R_y = A_y + B_y + C_y[/tex]
[tex]A_y[/tex] is negative as it is in third quadrant.
[tex]B_y[/tex] is positive as it is in first quadrant.
[tex]C_y[/tex] is negative as it is in fourth quadrant.
[tex]R_y = -2.8 + 6.4 - 0.7[/tex]
[tex]R_y = 2.9[/tex] km
As a car skids to a stop, friction transforms kinetic energy to...
Calculate the diffraction limit of the human eye, assuming a wide-open pupil so that your eye acts like a lens with diameter 0.8 centimeter, for visible light of 500-nanometer wavelength.
How does this compare to the diffraction limit of a 10-meter telescope?
How does energy move predictably between a lien water in the air above it
A dancer lifts his partner above his head with an acceleration of 2.5 m/s2. The dancer exerts a force of 200 N. What is the mass of the partner?
If the force of the explosion was focused onto a smaller _____ of the window, then the pressure of the explosion on the window would be even greater.
length
area
volume
density
Answer: The correct answer is Area.
Explanation:
Pressure exerted on an object is defined as the ratio of force applied to the surface area.
Mathematically,
[tex]p=\frac{F}{a}[/tex]
Where, p = pressure
F = force applied
a = surface area
From the above relation, pressure is inversely related to area. As, the pressure increases, the area will be small and vice-versa.
So, when force of the explosion was focused on a smaller area, then the the pressure of the explosion on the window was greater.
Hence, the correct answer is Area.
Doug is doing work. Without knowing exactly what he is doing, which can be said about the work he is doing? Energy is transferred; Energy is increased; Energy is decreased; Energy is unchanged;
The answer is Energy is transferred! I just took the test and your answer was Energy is decreased and that was not correct!
A 2000kg suv accelerates from rest at a rate of 3.00m/s^2. The total amount of force resisting its motion 1500N. How much force is applied to the suvs tires by the ground to make it accelerate?
Final answer:
To find the force applied to the SUV's tires by the ground, we use Newton's second law of motion and consider the total resisting force. The calculated force is 7500 N.
Explanation:
To determine the force applied to the SUV's tires by the ground to make it accelerate, we will use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = m × a).
Given that the SUV has a mass (m) of 2000 kg and an acceleration (a) of 3.00 m/s², we can calculate the force required to accelerate the SUV. However, we must also consider the total amount of force resisting its motion, which is given as 1500 N.
The net force ([tex]F_{net}[/tex]) acting on the SUV is the difference between the applied force ([tex]F_{applied}[/tex]) and the resistance force ([tex]F_{resistance}[/tex]).
Using the formula:
[tex]F_{net}[/tex] = m × a[tex]F_{net}[/tex] = [tex]F_{applied}[/tex] - [tex]F_{resistance}[/tex]We can substitute the given values and calculate the applied force:
[tex]F_{net}[/tex] = (2000 kg) × (3.00 m/s²) = 6000 N
Now, we can solve for the applied force:
[tex]F_{applied}[/tex] = [tex]F_{net}[/tex] + [tex]F_{resistance}[/tex]
[tex]F_{applied}[/tex] = 6000 N + 1500 N = 7500 N
Therefore, the force applied to the SUV's tires by the ground to make it accelerate is 7500 N.