Part 1: Ballistic Pendulum Experiment Using a balance, determine the mass of the ball and basket of the ballistic pendulum. Fire the
ballistic pendulum and measure the maximum height the pendulum reaches. Use the
conservation of energy (initial KE+ initial GPE = final KE+ final GPE, KE = 12mv; GPE = mgh)
to calculate the initial speed of the pendulum after the ball has collided with the pendulum
basket. Next, use the conservation of momentum (total initial p = total final p, p= my) to
determine the initial speed of the ball before it collided with the pendulum basket.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

While you are driving in the lane next to the curb on a multi-lane road the car on your left suddenly moves toward you lane. they are about toy crash into your front fender. you

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)