A box of oranges lies in the back of a truck. The coefficient of static friction is 0.5. If the truck accelerates from 20 m/s to 10 m/s in 3 s, will the box slide?

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?