Suppose all the grains in a sample of sand were exactly the same size. Could the sample still be a heterogeneous mixture?

A force of 120.0 N is applied to a 3.00 kg block. What is the average acceleration of the block?

Four of the wavelengths of the Balmer series occur in the visible spectrum (656 nm, 486 nm, 434 nm, and 410 nm).

Two boxes sit on a frictionless surface and are in contact with one another. the first box has a mass of 7 kg and the second box has a mass of 8 kg. A 25 N force is applied to the 7 kg box. Find the acceleration of the boxes.

How do the gravitational and electrical forces between a proton and neutron compare

Rain, wind, industrial agriculture and waves causes what

Which forces do not require contact between objects in order to exert a push or pull? select all that apply gravitational force between the earth and an object tension force between an object and a rope magnetic force between two magnets frictional

Provides most of the energy used in the world today. Question 4 options: wind fossil fuel moving water sunlight

How does an atom of chlorine-37 become a chloride ion with a - 1 charge? 17 35.45 O A. The atom gains 1 electron, to make a total of 21. O B. The atom gains 1 electron, to make a total of 18. O C. The atom loses 1 proton, to make a total of 36. O D.

What is the momentum of a 500-kg car moving at 10 m/s?

Which statement describes the formation of a nebula? A. An elliptical flattened disk begins. B. A bulging core with irregular stars around it forms. C. A large flattened core at the center contracts. D. Gases from a dead star gather and contract.