Very light items remain on the surface of water because of surface currents.

True or false

Under what conditions would a scale record a weight for an object which is equal to the magnitude of the gravitational force on the object?

Serving at a speed of 170 km/h, a tennis player hits the ball at a height of 2.5 m and an angle θ below the horizontal. The service line is 11.9 m from the net, which is 0.91 m high.

Which type of circuit has two or more pathways for electrical energy

A room contains air in which the speed of sound is 343 m/s. The walls of the room are made of concrete in which the speed of sound is 1 850 m/s. (a) Find the critical angle for total internal reflection of sound at the concrete-air boundary.

If a 1.5 V battery is connected in a simple circuit to a lightbulb with a resistance of 8 ohms, the amount of current flowing through the circuit is what

What is the energy of an object because of its potential and kinetic energies? A.) chemical energy B.) electrical energy C.) nuclear energy D.) mechanical energy

If the volume of a hot air balloon remains constant, what happens as the temperature of the air inside the balloon increases?

What is the correct formula for electrical power? l

Bernie drove home from a vacation in 1.5 hours. He traveled a total distance of 60 miles. What was his average speed in miles per hour

What advice a personal trainer most likely give u before a workout