What determines the speed of a wave on a string?

A straight wire in a magnetic field experiences a force of 0.017 N when the current in the wire is 1.1 A. The current in the wire is changed, and the wire experiences a force of 0.077 N as a result. What is the new current

What is the equation for calculating a machine's efficiency? I searched all over my textbook and couldn't find it, so I decided to post my question here.

How is centripetal force affected if an object increases its mass?

In which of the following are action and reaction forces involved? A. when a tennis racket strikes a tennis ball B. when stepping from a curb C. when rowing a boat D. all of the above

How is acceleration related to force when mass is consistent, according to Newton's second law of motion?

How fast would the moon need to travel in order to escape the gravitational pull of Earth, if Earth has a mass of 5.98 X 1024 kg and the distance from Earth to the moon is 3.84 x 108 m?

6. A technlclan can be electrocuted when working on HEVs or EVs. A) O True B) O False

You light a light bulb with a 1.5 volt battery. if the bulb has a resistance of 10 ohms, how much current is flowing?

How are the mass and weight an object related? Include a description with words and a equation.

Which layer of the atmosphere is the top layer of the thermosphere?