The answer is C. Acceleration is nonzero, but it’s velocity is zero
Answer:
0.117 m
Explanation:
First of all, we can find the wavelength of the wave in the problem, by using the wave equation:

where:
v = 350 m/s is the speed of the wave
f = 500 Hz is the frequency of the wave
is the wavelength
Solving for
,

This means that the distance between two consecutive points of the wave having a difference of phase of

is 0.7 m.
Here we want to find the distance between two points that have a difference of phase of

So, we can set up the following rule of three:

where d' is the distance we are looking for. Solving for d',

Answer:
605 J
Explanation:
Efficiency = work out / work in
0.78 = W / 775 J
W = 605 J
Answer:
Yes
Explanation:
The velocity measured by Jennifer and Johnny is

The actual velocity is

We can calculate the % error of the students measurement as follows:

Which is lower than the 2.5% maximum error required, so the two students will pass the test.
Answer:
The answer you would be looking for is A.
Explanation: