Indicate whether the statement is true or false. an astronaut weighs the same on earth as in space.

a. true

b. false

Tina rolls a ball across the floor. What type of force is acting upon this ball? A. gravity B. friction C. push (applied) D. all of these

Thomas edison. what is the invention behind him?

True or false day and night are caused by earths rotation

Electric fish generate current with biological cells called electroplaques, which are physiological emf devices.

A capacitor consists of a set of two parallel plates of area a separated by a distance d. this capacitor is connected to a battery that maintains a constant potential difference between the plates.

How long does it take the moon to go from full-moon phase to new-moon phase

What is the rule of calculation of elastic potential energy?

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge.

What has more momentum: a sports car moving at 100 mph or a train that is not moving?

What is your mass in kilograms?