A pebble is thrown horizontally with an initial velocity of 12m/s to the right. How long does it take to fall 34 meters

Fluorine-21 has a half-life of approximately 5 seconds. What percentage of the original nuclei would remain after 20 seconds

Calculate the temperature of and power-per-area radiated from a blackbody if the spectral intensity density peaks at (a) gamma rays, λ = 1.50*10-14 m; (b) x rays, 1.50 nm; (c) red light, 640 nm; (d) broadcast television waves, 1.

To make 100 minus charges neutral you need

A ball thrown with 50N of force accelerates at 25 m/s2. What is the mass of the ball?

Could I have a formula for acceleration when I am given the M/S and time?

An ice skater has a moment of inertia of 5.0 kgm2 when her arms are outstretched. at this time she is spinning at 3.0 revolutions per second (rps). if she pulls in her arms and decreases her moment of inertia to 2.

What is the use of infrared rays?

What would be the acceleration of gravity of a planet with four times the mass of Earth but twice the radius?

A mover hoists a 200 kg piano from the ground to a height of 10 m using a single pulley. What was the change in the pianos energy? a. 20j b. 200j c. 2000j d. 20000

When you hear sound pulses (beats), describe how you will determine the beat frequency. Include in your answer what steps you will take to reduce percentage uncertainty, as well as how you will turn raw measurements into your final answer.