Calculate the accleration of a 25-Kg object that moved with force of 300 N

Bottles of perfume sometimes have thick glass (n = 1.5 walls which give the impression the volume is larger than it is. assume a cylindrical bottle has an inner radius of 1 cm and an outer radius of 2 cm.

How does the energy of an electron change when the electron moves closer to the nucleus? a. It doubles. b. It increases. c. It decreases. d. It stays the same.

Atoms of element A decay to atoms of element B with a half-life of 20,000 years. If there are 10,000 atoms of A to begin with (and 0 atoms of B), how long will it take for there to be 2,500 atoms of A?

Select the correct answer. Five marbles roll down a ramp. Each marble reaches the bottom of the ramp at a speed of 3 meters/second. Which marble has the highest kinetic energy at the bottom of the ramp? The table lists the mass of each marble.

Technician A says that a transmission with electronic shift controls uses a throttle position sensor in place of a throttle valve. Technician B says that a vehicle speed sensor is used in place of a governor. Which technician is correct? A.

Name two practical applications of nanotechnology

if the distance of separation begin two objects is doubled, is the gravitational force between the objects increased or decreased? by what factor?

A researcher measures the thickness of a layer of benzene (n = 1.50) floating on water by shining monochromatic light onto the film and varying the wavelength of the light.

A rock has a height of 4 cm, a length of 5 cm, and a width of 2 cm. what is the volume of the rock?

The filament of a certain lamp has a resistance that increases linearly with temperature. When a constant voltage is switched on, the initial current decreases until the filament reaches its steady-state temperature.