What is the net force when a pair of balanced forces acts on an object

Polystyrene has dielectric constant 2.6 and dielectric strength 2.0 * * 10^7 V/m. A piece of polystyrene is used as a dielectric in a parallel-plate capacitor, filling the volume between the plates. a.

Professor Martinez would like to describe the amount of variation there is in his data set. Which of the following should he calculate? A. mean B. mode C. range D. median

A ride-sharing car moving along a straight section of road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 28.0 m/s. Then the vehicle moves for 41.

What sort of historical data can a glacier provide through an ice core?

The sun radiates most strongly at a wavelength of about 550 nm. a star that radiated most strongly at 400 nm would be

Technician A says that engine parts should be be cleaned before a thorough test can be done to detect cracks. Technician B says that pressure testing can be used to find cracks in blocks or cylinder heads. Who is right?

How are mathematics and science related?

Radio telescopes detect waves with a wavelength of roughly 10 m. True False

2. A 0.30 kg ball is dropped onto a concrete driveway. The ball's velocity before impact is 4.5 m/s and after impact is 4.2 m/s. What is the change in the ball's momentum?

If we start with 400 atoms of a radioactive substance, how many would remain after one half-life? After 2 half-lives? After 3 half-lives? After 4 half-lives?