A force of 50 Newtons causes an object to accelerate at 10 meters per second squared. What is the mass of the object?

It is difficult to observe 1-nanometer, 1 millimeter, and 100 meter radiation with ground-based telescopes. What are the reasons for each?

Which of the following best describes magnetic fields? A. Magnetic fields need a conductor. B. Magnetic fields are always found in insulators. C. Magnetic fields have north and south magnetic poles. D. Magnetic fields must have only positive charges.

What is the momentum of a 65kg ball rolling at 5 m/s?

How much power is required to do 40 J of work on an object in 5 seconds? A. 0 W B. 5 W C. 8 W D. 40 W E. 200 W

A wedge and a screw are similar because they both:

Select all of the answers that apply. What conditions on Earth are unique from other planets in our solar system?

Which is a chemical change

A 20-N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is?

What is the electrical power when the current is 25 amps and the voltage is 10 volts?

A cyclist rides her bike 7 mi east, and then 2 mi north before taking a break. Then she rides 5 mi east and then 3 mi north. What are the magnitude and direction of the cyclist's resultant displacement? magnitude: 13.0 mi; direction: 22.