A 9kg sled is being slid across snow. The coefficient of friction is 0.30. What is the frictional force between the sled and the snow?
A)2.7N
B)2.7
C)26.49
D)26.49N

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.