The acceleration of the particle is
Explanation:
The acceleration of a body is defined as follows:
where
u is the initial velocity of the object
v is the final velocity
t is the time the object takes to change its velocity from u to v
For the particle in this problem, we have:
u = 10 cm/s
v = 20 cm/s
t = 5 s
Substituting into the equation, we find the acceleration:
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Answer:
Explanation:
A)
W = work done by the freezer = 800 J
Q = heat removed from the freezer = 1735 J
Q' = Heat expelled into the room
Coefficient of performance is given as
inserting the values
B)
Heat expelled is given as
Q' = W + Q
Q' = 800 + 1735
Q' = 2535 J
Answer:
v = 0.375 m/s
Explanation:
Given that,
The wavelength of a wave is 0.75 m/cycle
The period of a wave is 2s/cycle
We need to find the speed of the wave. We know that,
Substitute all the values,
So, the speed of the wave is equal to 0.375 m/s.