What is the direction of the force when an object moved in a circle

A capacitor with the capacitance constant C has a charge of Q and a potential difference of V. If the charge is reduced to Q and the potential is increased to 2V, what is the new capacitance? 2c 4c

An electromagnetic wave traveling through a vacuum has a wavelength of 1.5 * 10-1 meter. What is the period of this wave?

The intensity or brightness of light depends on

A brass ring of diameter 10.00 cm at 20.0 ∘C is heated and slipped over an aluminum rod of diameter 10.01 cm at 20.0 ∘C. Assuming the average coefficients of linear expansion are constant, What if the aluminum rod were 10.02 cm in diameter?

Suppose that, for the sphere in the video, instead of being told how fast the radius is changing, we're told that the volume is increasing at a constant rate of d V d t = 4 cubic centimeters per second.

Calculate the gravitational potential energy relative to the ground when an 82 kg person climbs to the top of a 2.0 m stepladder.

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff

A 15.0 m long plane is inclined at 30.0 degrees. If the coefficient of friction is 0.426, what force is required to move a 40.0 kg mass from rest at the bottom on the plane to the top of the plane with a final velocity of 8.00 m/s?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?