A hydrogen atom is in its n = 2 excited state when its electron absorbs a photon of energy 8.5 ev. what is the kinetic energy of the resulting free electron?

Water in a container is originally at 100 kPa. The water is subjected to a pressure of 120 MPa. Determine the percentage decrease in its volume.

A race car has a centripetal acceleration of 18.75 m/s2 as it goes around a curve. If the curve is a circle with radius 12 m, what is the speed of the car? A. 15 m/s B. 9.8 m/s C. 1.6 m/s D. 17.2 m/s

As a rocket is accelerating vertically upward at 92 m/s^2 near the Earth's surface, it releases a projectile. Immediately after release the acceleration (in m/s^2) of the projectile is: A) 9.8 down. B) 9.8 up C) 9.

Which of the following elements is among the alkali metals? Question 12 options: Magnesium (Mg) Tin (Sn) Lead (Pb) Potassium (K)

Suppose the magnitude of the proton charge differs from the magnitude of the electron charge by a mere 1 part in 109 Part A What would be the force between two 1.9-mm-diameter copper spheres 1.

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.

In the game of volleyball, what skill relates to Newton's second law

The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d (v) = 0.045v2, where v is the vehicle's speed in miles per hour.

A 2kg blob of putty moving at 4 m/s slams into a 6kg blob of putty at rest what is the speed of the to stick together blobs immediately after colliding

A stone is thrown vertically upward with a speed of 12m/s from the edge of a cliff 70 m high (a) How much later it reaches the bottom of the cliff? (b) What is its speed just before hitting? And (c) what total distance did it travel? (Ans: 5.