A pitched ball is hit by a batter at a 45degrees angle and just clears the outfield fence, 98m away. Assume that the fence is at the same height as the pitch and find the velocity of the ball when it left the bat. Neglect air resistance.

An electrician is creating a wiring plan for a small house. He needs to create a plan that will allow the homeowners to turn off lights in one room without turning off the lights in another.

What two states of matter are fluids?

Brad and Erin decide to have a tug of war contest. Erin pulls the rope with all her might and so does Brad. Sadly, Brad only pulls with half the force that Erin pulls with. Which way will the rope move?

Is air made of matter? evidence and reasoning.

Put the items below in correct sequence for using wind to generate electricity. 1 - A generator converts mechanical energy into electrical energy. 2 - Wind turns the wind turbine blade. 3 - A gear box transfers mechanical energy to a generator.

According to Newton's 3rd Law, an object's momentum depends on it's velocity and mass. 4 dog-sled teams competed to see who could gain the greatest momentum.

When resistors are connecting in a series, does the position of ammeter make any difference?

Describe how the energy from stars is release?

If the total dissipated power is to be reduced by 10%, how much should the voltage be reduced to maintain the same leakage current for the Pentium Prescott? Note: power is defined as the product of voltage and current.

Determina la fuerza que se necesita aplicar a un camión de 2800 Kg para que éste acelere 6.5 m/s2