Explanation:
power=f×v. recall= distances/ time
= f× d/t
= 30 × 2/5
=12watt
5.972 × 10^24 kg
it is the weight of earth
hope it is helpful to you
Definitely D. The brakes on a bike rub against the wheel. Not sure about the others.
Answer:
a = 2 m/s2
Explanation:
we know from newtons 2nd law
F = ma.
we also know that from hookes law we have
F = kx
equate both value of force to get value of acceleration
kx = ma,
where,
k is spring constant = 8.0 N/m
x is maximum displacement 0.10 m
m is mass of object 0.40 kg
a = \frac{kx}{m}
= \frac{8 *0 .10}{0.40}
a = 2 m/s2
