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Q1. A diver beneath the surface of an ocean shines a bright searchlight up at an angle of 37 degrees to the vertical. At what angle does the light emerge into the air? The refractive index of water is 1.33.
Q2. A 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature?
At one point in a pipeline, water's speed is 3.30 m/s and the gauge pressure is 4.00×10^4 Pa. Find out the gauge pressure at a second point in the line 13.0 m lower than the first if the pipe diameter at the second point is twice that at the first.
he driver finds that the car bounces up & down with maximum amplitude when he drives at a speed of 4.2 m/s (approx 9.4 mph). The car then stops & picks up three more 110 kg passengers. By how much does the car body sag on its suspension when these ..
What is the final angular velocity
When the space shuttle (mass of the shuttle=2*10^6kg) was at the outer limit of Earth's atmosphere (distance= 350km above Earth's surface), astronauts measured the gravitational force from Earth to be equal to 1.7*10^7 newtons. Find the gravitatio..
What are the velocities of the two people after the snowball is exchanged. What is the greatest kinetic energy of the electrons removed from the cathode by this light.
At rest when constructed, the ring is set rotating about its axis so that the people inside experience effective free-fall acceleration equal to g. The rotation is achieved by firing two small rockets attached tangentially to opposite points on the r..
A ball is tossed from an upper story window of a building. Compute the height from which the ball is thrown.
She notices a group of workers down the walkway who have suddenly blocked her path, and she makes a quick stop in 1.8 seconds. What is Suzies average acceleration
The diagram on the left below shows two resistors in series with an ideal battery, in the diagram on the right; a third resistor has been added in parallel with R2. Calculating the resistance, current and potential difference.
What is the velocity of each ball after the elastic collision? What will be the highest height of each ball after the elastic collision .
The parallel metal plate of a capacitor is separated by a distance of 0.5cm and is connected to a 90v battery. Discover an electric field between them and the surface charge density .
What travel time is required for the landing
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