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A flashlight on the bottom of a 3.60 m deep swimming pool sends a ray upward and at an angle so that the ray strikes the surface of the water1.95 m from the point directly abovethe flashlight. What angle (in air) does the emerging ray make withthe water's surface?
two blocks each of mass 3.05 Kg are fastened to teh top of an elevator. A if the elevator has an upward acceleration a = 1.60 m/s^2, What is the maximum acceleration can the elevator have before the upper string breaks
A spherical mirror is to be used to form a real image of an object that is located 5 meters from the object. What type of mirror needs to be used
The energy released by each fission within the core of a nuclear reactor is 2.00 x 102 MeV. Determine the power (in watts) that the reactor generates
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
A 24-V battery is connected in series with a resistor and an inductor, with R = 4.2 ? and L = 6.0 H, respectively. Find the energy stored in the inductor when the current reaches its maximum value
A chemist uses a mass spectrometer to determine the amounts of specific kinds of air pollution in an air sample. What is the diameter of the circular path of NO (nitrous oxide) molecules
A 5 kg ball strikes a massive wall at 11 m/s at an angle of ?=65.0° with the plane of the wall. It bounces off the wall with the same speed and angle. what is the average force exerted by the wall on the ball in y direction
At a certain point on Earth's surface in the southern hemisphere, the magnetic field has a magnitude of 4.9 10-5 T, What is the magnitude and direction of the force on the muon
Classical Mechanics: Projectile Motion, A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.80 m/s at an angle of 21.0° below the horizontal. It strikes the ground 3.00 s later.
A ball is thrown in the air at an initial angle 35 degrees above the horizontal. It takes 4 seconds for the ball to hit the ground
Two boats start together and race across a 56-km-wide lake and back. Boat A goes across at 52 km/h and returns at 56 km/h. Boat B goes across at 36 km/h, and its crew, realizing how far behind it is getting, returns at 79 km/h. Turnaround times are n..
Two billiard balls are initially traveling toward each other at speeds of 1.40 m/s for ball 1 and 4.35 m/s for ball 2. Find the final velocities of both balls
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