A 4kg mass is in free fall. What is the velocity of the mass after 11 seconds.

3) If an object has a net negative charge of 4.0 Coulombs, the object possesses 1) 6.3 x 1018 more electrons than protons 2) 2.5 x 1019 more electrons than protons 3) 6.3 * 1018 more protons than electrons 4) 2.5 * 1019 more protons than electrons

How does Newton's third law of motion apply to a meteorite hitting earths surface

What is a machine element

A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. (a) Calculate the average speed of the blade tip in the helicopter's frame of reference.

A sound wave in the air has a frequency of 680 cycles per second. What is the approximate wavelength of the sound wave

How much work would it take to move a coulomb charge across a 4 volt potential difference?

Why do people eat vegetables? Not just to stay healthy! But why else do we eat and need vegetables?

How many additional electrons does this atom of oxygen need in its valence shell to satisfy the octet rule?

In the movie "Santa Claus is Coming to Town", the Mayor Burgermeister Meisterburger outlaws toys after tripping on a rubber duck. To make rubber ducks un-crushable while being delivered by Santa, the ducks are filled with an inert, harmless gas. A 2.

Which of the following represents a chemical change? rocks being smoothed by rapid water movement the pink color of a rose iron's attraction to a magnet decomposition of stone due to acid rain