A child and sled with a combined mass of 50.0 kg slide down a frictionless slope. if the sled starts from rest and has a speed of 4.00 m/s at the bottom, what is the height of the hill? m

Currents in the ocean are caused by differences in water density. Colder, denser water tends to A. rise and flow from west to east. B. sink and flow from the equator to polar regions. C. rise and flow from east to west. D.

How can eclipsing binary stars be identified? They are brighter than any single stars. They are cool red stars. They are all white dwarfs. They become dimmer at regular intervals.

In a certain region of space, a uniform electric field is in the x direction. A particle with negative charge is carried from x = 20.0 cm to x = 60.0 cm.

What is a superconductor?

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 86 kg, and the mass of the woman is 51 kg. The woman pushes on the man with a force of 46 N due east.

10 PTS. A resistor has a value of 2.2 x 10⁵ Ω ± 20%. What is the range of possible values for this resistor?

Describe 3 uses of radioactivity isotopes

Two friends, barbara and neil, are out rollerblading. with respect to the ground, barbara is skating due south at a speed of 5.9 m/s. neil is in front of her. with respect to the ground, neil is skating due west at a speed of 1.4 m/s.

If the average movement of the particles in a sweater increases, what will happen to the sweater's temperature?

Will you die if you eat wax?