If you dropped a paper helicopter 38 feet down, what would be two unbalanced forces?

Which of these causes the lower mantle to remain solid despite high temperatures? a. salinity b. density c. pressure d. chemical composition

Calculate the momentum of a 1950 kg elephant charging a hunter at a speed of 7.50 m/s. (b) Compare the elephant's momentum with that of a 0.0400 kg bullet fired at a speed of 600 m/s. (c) What is the momentum of the 90.0 kg hunter running at 8.

Which of these is an advantage of parallel circuits over series circuits? A. The receivers can exchange energy with each other. B. The voltage is stronger from the battery. C. If the battery dies, energy can still flow through the receivers. D.

A 2-kg box sits on a horizontal table. the force of friction between the box and the table is 10 n. the box is pushed to the right with an applied horizontal force of 20 n. what is the acceleration of the box?

Describe a situation when you might travel at a high velocity but with lo acceleration

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?

What did the romans build as a step toward environment management

Accelerations are produced by equal forces or unequal forces?

A wave travels through a medium. As the wave passes, the particles of the medium vibrate in a direction perpendicular to the direction of the wave's motion. The wave is a. longitudinal. c. electromagnetic. b. a pulse. d. transverse.