Happinessdelight

A rocket is launched vertically into the air and is observed from a tower that is 1.5 km above the ground level. Soon after the launch the rocket is at an angle of 25 degrees. Later the rocket has climbed vertically a further 4 km and its angle of elevati...

For the equation 3^x - 3^-x = 1 solve for x by writing your final answer in logarithmic form.

A 0.250 kg ball swung on a 1.3 m string in a vertical circle. If it's tangential speed at the bottom of the path is 4.2 m/s, what is the maximum speed the ball can have at the top and still move in a circle?

A wheel mounted on a stationary axle starts at rest and is given the following angular acceleration: 9-12t where t is the time after the wheel begins to rotate. Find the number of revolutions that the wheel turns before it stops ( and begins to turn in th...

Max has a mass of 65 kg and sits in a canoe that has a mass of 55 kg. He jumps with a horizontal velocity of 2m/s towards the shore. What is the velocity of the canoe?

An ore sample weighs 15.00 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 9.00 N. Find the total volume and the density of the sample.

At a certain point in a pipeline the water's speed is 4.00 m/s and the gauge pressure is 5.00 x 10^4 Pa. Find the gauge pressure at a second point in the line, 12.0 m lower than the first, if the cross-section area at the second point is twice that at the...

The piston of hydraulic automobile lift is 0.30 m in diameter. Calculate the gauge pressure required to lift a car with a mass 1000 kg in, A) Pascals B) Atm

Find the gauge pressure in pascals in a soap bubble 0.04 m in diameter. The surface tension is 25.0 x 10^4 Pa.