If a boy with 50kg run in 3m/s what is his velocity

Echolocation is an acoustic principle in which some wildlife use resonance to find food at night. Question 25 options: True False

A 1,000 kg car has 50,000 joules of kinetic energy. What is it's speed

Which is the of these their statements correctly describes a key difference between aerobic activity and anaerobic activity

Solve the following automotive-services problem. Voltage = 220 v Current = 4 amps Resistance =

Landing with a speed of 81.9 m/s, and traveling due south, a jet comes to rest in 949m. Assuming the jet slows with constant acceleration, find the magnitude and direction of its acceleration.

The equation e = mc2 relates mass and a. energy b. force c. work d. gravity

What should a scientist do to use scientific methods for determining the relative age of Earth's rocks? A be biased in opinion B disregard views of others C use creative ideas D prove that methods are non-testable

If a sample of gas is heated at a constant pressure what will happen to the volume of the gas

1. What is the speed of sound in air that has a temperature of 90.0 °C?

What effect does a doubling of the mass have upon the acceleration of the object? Be quantitative.