When you catch a baseball, what kind of work do you do, negative or positive? By catching the baseball, what do you change? Does the baseball gain or lose energy? What kind of energy?

A particle of mass 6.7*10^-6 kg and charge 13 μC is moving at a speed of 70 m/s perpendicularly to a uniform 9.4-T magnetic field. What is the radius of the particle's circular path?

Near which location in New York State would a geologist have the greatest chance of finding dinosaur footprints in the surface bedrock?

A pitcher exerts a force on a baseball that is 30 times the balls weight. How fast is the pitcher accelerating the ball?

A person runs off a 10.0-meter high balcony in a horizontal direction at 5.0 m/s. the swimming pool is at ground level 5.5 meters away from the edge of the balcony. will the person reach the pool? assume no air resistance.

A 1614 kg car moves with velocity of 6 m/s what is its kinetic energy (answer) Joules

Scientists who study races and their origins are called A. anthropologists. B. ethnologists. C. paleontologists. D. sociologists.

Why are telescopes that detect non - optical radiation useful for studying objects in space

Which of the following is not an application of Doppler technology? police speed guns weather radar ultrasound imaging of the liver determining the motion of a star

For a constant voltage, increasing the resistance will cause the current to decrease. true or false

Which of the following is an example of a testable scientific hypothesis? A) Why do plants grow better in the Sun than in the shade? B) Peacocks have prettier tail feathers than pigeons do.