Which of the following quantities is a vector in character?

electric energy

electric potential difference

electric charge

electric field

The centripetal force of an object moving in a circle varies jointly with the mass of the object and the square of its velocity and inversely as the radius of the circle.

Which of the following exhibits parabolic motion? a. a stone thrown into a lake b. a space shuttle orbiting Earth c. a leaf falling from a tree d. a train moving along a flat track

What is the SI unit for momentum? kg•m kg•m/s kg•m²/s Kg•m/s^2

Which type of radiation has the shortest wavelength?

a 50 - kg block of concrete is pulled upward (not sideways) with a force of 600 n = what is the acceleration

Who is known as the father of toxicology

In which layer of the sun is energy transfferred between atoms?

A 63 kg object needs to be lifted 7 meters in a matter of 5 secound. Approximately how much horsepower is required to achieve in the task

If you ere to continue the investigation, what would you suggest as a next step? and Can you determine the identity of an unknown substance by calculating its densitu and observing chemical reactions?

A small cylinder made of a diamagnetic material is brought near a bar magnet. One end of the cylinder is brought near the North pole of the magnet and is repelled.