A 20 kg object is floating in space. What is its mass?

30.51 Which pair does NOT have an electric force between them? a positive object and negative object two positive objects two neutral objects two negative objects Save and Exit Next Submit Mark this and return

An 114 kg man climbs up a 1 m high flight of stairs. The acceleration of gravity is 9.81 m/s 2. What is the increase in the gravitational potential energy of the man-earth system? Answer in units of kJ.

If there is no electrical current flowing through a wire what happens to the magnetic field

The frequency of a wave is 10 Hz. If the speed of the wave is 5 m/s, what is the wavelength? A. 0.5 m B. 2 m C. 10 m D. 50 m

Five ways to calculate speed without speedometer

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

An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting on the elevator are the tension in the cable and the gravity. Which one of the following statements is correct? Group of answer choices A.