If it's Kepler's law of equal areas you're talking about,
then the first of the four statements is true.
now you justhave to solve the last numbers because...Iam sooo Lazy right now
Answer:
if the frequency is double, the wavelength is only half as long
Explanation:
There are three forces acting on the book.
1. Force due to gravity
2. Force exerted downward by the hamster
3. Normal Force in reaction to the downward forces
Since the book is not moving, the net force is zero. The summation of all forces must be zero. Then we could find the normal force which is unknown (denoted as x).
∑F = -(4 kg)(9.81 m/s2) - 3 N + x =0
∑F = -39.24 N - 3N + x =0
x = 42 N
Therefore, the normal force is 42 N.