Calculate the energy for the transition of an electron from the n = 8 level to the n = 4 level of a hydrogen atom.

On an acceleration-time graph what are the units for acceleration

A particular car has a weight of 9500 N. What is the mass of the car? 9500 kg 95000 kg 950 kg 2160 kg

If there are two objects, and the mass of one object increases, the gravitational force between them will A. increase B. decrease C. remain constant D. increase OR decrease

The following four objects sit on a table on earth. which experiences the greatest normal force from the table? a. a book weighing 2 n b. a mug with a mass of 250 g c. a metal pen with a mass of 0.3 kg d.

A box is being pulled to the right. What is the magnitude of the Kinect frictional force?

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).

Two pieces of metal with exactly the same mass are placed on a surface in bright sunlight. The temperature of the 1st block increases by 3°C while the temperature of the 2nd increases by 8°C. If the specific heat of the 2nd block is 0.

The correctly balanced equation for H202 - H2O + O, is A) H202 - 2H2O + O2 B) H302 - H20+20, C) 2H, 02 - - 4H20 + 0, D) 2H, 02 - 2H30 + 0,

What happens to the wavelength of a wave if you increase the frequency?

In a transverse wave, the particle motion is what to wave motion? A. perpendicular B. parallel