Who was the man who lived from 460B. C. 370B. C. and was among the first to suggest the idea of atoms?

a. Atomos

c. Democritus

b. Dalton

d. Thomson

Two ice skaters, Daniel (mass 60.0 kg) and Rebecca (mass 45.0 kg), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, who is moving at 14.0 m/s before she collides with him.

g Which of the following is true about magnetic field lines? A. All magnetic field lines are always parallel to the Earth's magnetic field. B. Magnetic field lines form closed loops and never intersect. C.

Describe an electromagnet and how it is used

Barney walks at a velocity of 1.7 meters/second on an inclined plane, which has an angle of 18.5° with the ground. What is the horizontal component of Barney's velocity?

The is a factor that's affected by changes in the independent variable

Which of these would you include ina free body diagram for a bicycle-plus-rider taken together as the bicycle is being pedaled up the hill?

What are two possible uses of genetic engineering

How many joules are expended by a 70 kg man climbing up 6m of stairway? How much work is done if the climbing takes place on the surface of the moon? (Assume that the acceleration due to gravity on the moon's surface is 1.6 m/s2

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9