How long do you have to take the Aspire science test

The average car has a mass of about 1500 kg, and travels at about 30 m/s when it's on the highway; how much kinetic energy does the average car have when driving at highway speed?

Which two particles are present in the nucleus of an atom? Electrons and neutrons Electrons and molecules Protons and neutrons Protons and electrons

Two sinusoidal waves travel along the same string. They have the same wavelength and frequency. Their amplitudes are ym1 = 2.5 mm and ym2 = 4.5 mm, and their phases are π / 4 rad and π / 2 rad, respectively.

1. A force that pushes forward on an object speeds the object up. A force that pushes backwards slows the object down. What effect does a force that is perpendicular to the object's motion do?

Under electrostatic conditions, the electric field just outside the surface of any charged conductor A. is always zero because the electric field is zero inside conductors B.

What is the name of the german scientist that proposed the theory of continental drift

Trucks 1 and 2 are traveling at the same constant velocity but truck 1's energy due to motion is two times less than that of truck 2. This is because Truck 1's mass is:

Why do the densities of most substances decrease with an increase in temperature?

Consider two planets in space that gravitationally attract each other if the mass of one of them stays the same and the mass of the other is doubled AND the distance between them is doubled, then the force between them changes by what factor? A.

David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which type of friction acts between the cart wheels and the sidewalk? A. sliding friction B. rolling friction C. fluid friction D.