Which scientific law states that matter cannot be created or destroyed?

A. first law of nature

B. Newton's first law

C. universal gravitation

D. conservation of mass

What force is required to keep a 245kg wood pallet moving at a constant speed across a concrete floor

You are using a tuning fork of frequency 320 Hz. For one particular water level, you hear a loud sound when the fork is struck and positioned just above the open end of the tube. When the water level is lowered by 535 mm, you again hear a loud sound.

What are thw three premises behind the kinetic therory of heat?

I go from 5m/s forward to 3m/s backwards. what is my acceleration.

Why does San Francisco California have different temperatures / climates than Lexington Kentucky?

Which of the following subatomic particles does not have a charge? A.) electron B.) proton C.) neutron D.) positron

How do we use light in space?

What units are used for gravitational potential energy? Write the name, not the symbol.

A 7.5 kg block is placed on a table. If it's bottom surface area is 0.6m2, how much pressure does the block exert on the tabletop? A. 376.5 Pa B. 73.5 Pa C. 226.5 Pa D. 122.5 Pa

A boulder of mass 2000 kg is at the top of a cliff of height 220 m. Determine how fast the boulder will be moving when it strikes the dirt below.