Answer:
The acceleration of the crate is 
.
Explanation:
Given that,
Force, F = 750 N
Mass of the crate, m = 250 kg
The coefficient of friction is 0.12.
We need to find the acceleration of the crate. The net force acting on the crate is given by :
f is frictional force, 
So, the acceleration of the crate is . Hence, this is the required solution.
Answer: W.D = 1/2mv^2
Explanation:
If an external force or a single force is acting on a body. Just like the first law of thermodynamics, the force acting on the body will cause work done on the system.
Work done = force × distance
And the work done on the body will cause the molecules of the body to experience motion and thereby producing kinetic energy.
The work done will be converted to kinetic energy.
W.D = 1/2mv^2
Answer:
about 186,000 miles per second
Explanation:
so your closest bet is probably 175 miles per second
<h3><u>Answer;</u></h3>
<em>B. The wavelength of both transverse and longitudinal waves is measured parallel to the direction of the travel of the wave.</em>
<h3><u>Explanation;</u></h3>
- <em><u>Longitudinal waves are waves in which the vibration of particles is parallel to the direction of the wave motion.</u></em> The vibration of particles generates regions known as compressions and rarefactions. Therefore<em> </em><u><em>the wavelength is the distance between two successive rarefactions or compressions.</em></u>
- <u><em>Transverse waves on the other hand are those waves in which the vibration of particles is perpendicular to the direction of the wave motion. </em></u>The vibration of particles generates regions of maximum displacement called crests and regions of minimum displacement called troughs. Thus, <em><u>the wavelength is the distance between two successive crests or troughs.</u></em>
