Which would you expect to have the greatest amount of friction?a- a smooth surface on a smooth surface
b-a smooth surface on a rough surface
c-a rough surface and air
d-a rough surface on a rough surface
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Related Questions
What does basketballs have inside of it
Help?? When vibrational motion in an object increases, which is a true statement? A. Kinetic energy and temperature decrease; thermal energy increases. B. Kinetic energy, temperature, and thermal energy decrease. C. Kinetic energy and temperature increase; thermal energy decreases. D. Kinetic energy, temperature, and thermal energy increase. i think its D, but im not sure.
Since the ball slowly comes to a stop what does this mean about the net force on the ball as it rolls across the field?
which section from thr article best explains why wavelength and frequency are dependent on each other
A.) An Iron horseshoe
B.) An aluminum rod
C.) A copper wire carrying current
D.) A positively charged glass rod
E.) A copper wire not carrying any current
F.) Another magnet
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Answer:
A.) An Iron horseshoe
C.) A copper wire carrying current
F.) Another magnet
Explanation:
As we know that two magnets and two different magnetic materials will attract or repel each other
This is due to interaction of two materials due to which their magnetic field interacts and apply force on each other
Here we know that
magnetic field due to current carrying wire is given as
so here the magnetic fields will interact when a current carrying wire is placed near the magnet, or another magnet is placed near the magnet or any magnetic material like iron horse shoe is near it
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so we have F=84N and d=0.25m
Now we just replace F and d into the formula M=84N×0.25m
And the last thing we do is calculate it
M=21Nm
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The star'scolor is an important property of stars because it provides some information about the temperature of a star. The correct option is C.
What does color of star indicates?
A star'shue depends on its temperature; cooler stars seem red, while hotter stars appear blue or white.
This is due to the fact that although stars emitlight over the full spectrum, the predominant hue in the light that we perceive is the color that corresponds to the star's temperature.
The other stated characteristics, such as a star's name, distance from the star, and shape, have no direct bearing on a star's temperature.
However, these characteristics can also provide crucialdetails about the star, such as its size, brightness, and location in the sky.
Thus, the correct option is C.
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Answer:
The stars color
Explanation:
Scientists know how a Star is by their color like blue is hotter than red
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As the fuel burns, the shuttle accelerates in the creases because the acceleration of an object caused by a net force is inversely proportional to the size of the net force.
How does acceleration work?
The rate at which velocity, measured in terms of speed and direction, changes over time is known as acceleration. Anything is said to have been accelerated when it goes faster or slower in a straight line.
Because the direction is always shifting, motion on a circle accelerates even while the speed is constant.
A speed is acceleration, right?
Acceleration is the term used to describe a change in an object's speed or direction. Velocity changes at an acceleration rate. Recall that velocity consists of two elements: speed and direction.
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Answer:
Power
Explanation:
I just took the quiz
Hence the rate at which work is done is called Power.
Power is measured in Watts. Work done is measured in Joules and Time taken is in Seconds.