Work in the amount of 280 J is done in lifting an object a distance of 4.0 m in a time. How much force did it take to lift the object?

A piece of copper is measured to be at 10°C and 115 grams in mass. If 1300 calories were added to it, what was the final temperature of the copper?

Which type of wave is detected from 140° to 180°

The process of changing a habit is long and multi-stepped. what is the first step in this process?

What is the difference between transverse and longitudinal waves? Transverse waves always carry more energy than do longitudinal waves. Transverse waves always travel at smaller speeds than do longitudinal waves.

Propose a situation where friction is undesirable.

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity

The observation location A is located at m. The conventional current running through the wire is 7.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 4 of the wire.

The wavelength of a light wave can be used to measure which of the following? A. The direction the wave is traveling B. How many photons the wave contains C. How much energy the wave has D. How high the top of the wave is

Sound 1 has an intensity of 38 W/m2. Sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. What is the intensity of sound 2?