Alice and jim calculate that they must do 1,800 j of work to push a piano up a ramp. however, because they must also overcome friction they actually must do 2,400 j of work. what is the efficiency of the map

Minerals that form from magma process will tend to form?

Why one part of the earth's surface is arid and dry and a nearby part is lush and wet is explained by the term?

The movement of an object at a constant speed around a circular radius is known as Question 1 options: unified celestial movement. uninformed circumstantial monotony. unilateral circus magic. uniform circular motion.

Explain why the liquids in a salad dressing bottle settled back into the same order after they were shaken up.

When did you notice a greater elevation of blood pressure and pulse?

Which of the following is known as the pulse of a wave? a non-recurrent wave the trigger of a wave the repeat motion of a wave one cycle of a wave motion the input of energy to cause a wave motion There is more than one

You inflate a balloons with helium the balloons feel stiff, which properties of a gas best explains this observation the particles are moving quickly and far apart the particles are closley packed and vibrate in place the particles slide past each

Question 10 2.5 pts Which example identifies a change in motion that produces acceleration? a speed skater moving at an increasing speed on a straight track a vehicle moving down a straight street at a steady speed a particle moving in a vacuum at

If a 2,300 kg car is accelerating at 16 m/s^2, what is the force it is producing?

A hollow sphere of negligible mass and radius R is completely filled with a liquid so that its density is rho. You now enlarge the sphere so its radius is 2R and completely fill it with the same liquid. What is the density of the enlarged sphere?