A 2.0-kg object moves in a circle of 0.50 m radius at 3.0 m/s. calculate the centripetal force.

A single-turn circular loop of wire of radius 65 mm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.10 s time interval, the magnitude of the field increases uniformly from 350 to 650 mT.

What a relationship between flame color and chemical name.

Which of these stars does not have fusion occurring in its core?

it took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles per hour. How many miles lie between the two cities?

Do all planetary systems look the same as our own?

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.