The balloon contain no gas initially. When it is connected to the cylinder gas enters the balloon the pressure in the cylinder decreases. Explain why the molecules inside the cylinder exerts a large pressure initially

Why is it important to warm up your muscles before a workout?

The sound of a loud warning siren travels through air and reaches the surface of a lake. The sound is then transmitted through the water at a speed about four times faster than through air.

A flywheel in the form of a uniformly thick disk of radius 1.23 m has a mass of 93.6 kg and spins counterclockwise at 369 rpm. Calculate the constant torque required to stop it in 2.25 min.

A solid metal sphere of radius a = 2.5 cm has a net charge Qin = - 3 nC (1 nC = 10-9C). The sphere is surrounded by a concentric conducting spherical shell of inner radius b = 6 cm and outer radius c = 9 cm. The shell has a net charge Qout = + 2 nC.

How long does it take for light to travel through matter in m/s

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.

Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source of energy? a. the heat released from a living organism: potential energy b.

What should you do when operating a boat in large waves and high wind?