Which of these assumptions is Ptolemy's model of planetary motion based on?

The sun moves around the earth.

The earth moves around the sun.

The stars do not move.

The earth is flat.

What is the mass of an object if a net force of 8.0 N causes it to accelerate at 1.1 m/s2?

An ideal gas system undergoes an isovolumetric process in which 20 J of energy is added as heat to the gas. What is the change in the system's internal energy? -20 J 0Ј 5J 20 J

What science tool can you use to pick up tiny objects

What is the current in a series circuit with a resistance of 30 ohms and a potential difference of 120 volts?

When a car travels around a curve in the road, what supplies the centripetal force needed?

Jill is getting ready to push little Frank in his swing. She pulls Frank back as high as she can and then releases the swing. What is the initial transfer of energy that accelerates the swing when she lets go?

Which phenomenon generates electric current? A black body radiation B ultraviolet catastrophe C emission spectra D photoelectric effect

What is the product of 3.15 m and 2.006 m with the correct number of significant figures?

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.