What are the wavelengths of electrons with kinetic energies 10 ev, 1000 ev, and 10^7 ev?

Which instrument is not used to measure air pressure a. aneroid barometer b. anemometer c. mercury barometer

A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to the top, which has a height of 3 meters. What is the efficiency?

If the vertical component of velocity for a projectile is 7.3 meters/second, find its hang time.

What is the major regulator of vocal intensity?

A vertical wire carries current in the upward direction. An electron is traveling parallel to the wire. What is the angle ααalpha between the velocity of the electron and the magnetic field of the wire? Express your answer in degrees.

the acceleration of gravity is 28 times on sun than earth. Imagine there is a space suit that let you stand on sun. Calculate the weight of 100 kg person on earth in newtons

A force of 20 n acts upon a 5 kg block, calculate acceleration of the object

What resultant force is needed to accelerate a train of mass 3.41000000 kg from rest to 15.0ms in exactly 20s

I to fall in love with someone or to at least get a boyfriend

Is rain falling a contact or noncontact force