A 25 kg girl steps off a diving platform that is 2 m high. Neglecting the effects of friction, what is the girl's speed just before she hits the water? A. 2.0 m/s B. 6.3 m/s C. 39 m/s D. 490 m/s

Under favorable conditions bacteria can multiply every 20 minutes. Starting with one bacterial cell, how many bacteria should you expect after 15 hours?

When light is refracted, the amount that the light bends depends on what

A squirrel jumps down from a tall tree. Assuming the squirrel is in free fall, how far will it have fallen in 1.3 seconds? O A. 6.4 m B. 13.2 m O C. 8.3 m O D. 11.1 m

An electric iron has a rating of 750w and 220v then calculate the current flowing through it and the resistance

What is the chemical name of SiF4? sulfur fluoride silicon fluoride sulfur tetrafluoride silicon tetrafluoride

Describe the rise and fall of a basketball using the concepts of kinetic energy and potential energy

What is not a factor that affects the viscosity of magma?

While driving his 600-kg ultra-compact electric car, a distracted driver starts crossing a drawbridge. Not realizing that the drawbridge is about to open, he ends up in the river below with his car.

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery