Which quantity is a vector?
What is the magnitude of the eastward component of the velocity of an airplane flying at 612 kilometers per hour in a direction 40.0° north of east?
A car, initially traveling at 25 meters per second, is uniformly brought to rest as the brakes are applied over a distance of 40. meters. The magnitude of the average acceleration of the car while braking is
A brick starts from rest and falls freely from the top of a building to the ground. As the brick falls, its acceleration
Which object has the greatest inertia?
An unbalanced force is always necessary to
Space probes launched from Earth send information back to Earth from space in the form of
A ball is thrown from level ground at an angle of 55° above the horizontal and lands on level ground. Neglecting friction, if the ball is thrown again at the same angle but with a larger initial speed, the ball will travel
After the collision, the electron recoils and the photon is scattered in another direction with a longer wavelength than the incident photon. The increase in photon wavelength results because, during the collision, the photon
What is the weight of a 60.0-kilogram student on the surface of Earth?
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