Calculate the energy in kilowatt hours used by a heater that operates continuously for 30 minutes. The heater has a power rating of 3000 W.

What is the de Broglie wavelength of an electron traveling at 1.09*105m/s?

Given that average speed is distance traveled divided by time, determine the values of m and n when the time it takes a beam of light to get from the sun to the earth (in s) is written in scientific notation.

Order the steps to describe how information is A signal is produced. A signal is seen, heard, or used. Radio waves are modulated and amplified. (X Radio waves are amplified and demod

How does something become charged using friction?

Which vehicle has the LEAST kinetic energy? 18-wheeler, minivan, car, or bike?

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass

Drivers are able to see objects ahead of them because light travels through windshields.