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Two ants race across a table 66 cm long. One travels at4.42 cm/s and the other at 3cm/s. When the first one crosses thefinish line, how far behind is the second one? Answer in units ofcm.
As a tennis ball is struck, it departs from the racket horizontally with a speed of 27.3 m/s. The ball hits the court at a horizontal distance of 19.3 m from the racket. How far above the court is the tennis ball when it leaves the racket?
he car is suspended beneath the helicopter by a steel cable. Illustrate what is the lift force exerted on the air by the helicopter's rotor?
A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 24.9 ° with respect to the horizontal. Find the magnitude of the force that the tow bar exerts on the skier
Near the surface of the Earth, an ideal spring with spring constant k = 50 N/m is on a frictionless horizontal surface at the base of a frictionless inclined plane, what is the angle µ of the inclined plane relative to the horizontal
One end of a cord is fixed and a small 0.440-kg object is attached to the other end, What is the tension of the string at this moment
Netrons are slowed down to thermal energies in a 1:1 mixture of H2O and Uranium(4 atom % U-235,96 atom % U-238). Estimate the probability that a 0.0253 eV neutron will have scattering collision with H2O.
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
You make a capacitor by cutting the 12.5 cm diameter bottoms out of two aluminum pie plates, separating them by 3.50 mm , and connecting them across a 6.00-V battery. what will be the potential difference between them
An ideal gas in a container is at a temperature of 70.6°C. What is the average translational kinetic energy of a gas molecule in the container
A car in an amusement park roller coaster ride rolls without friction at the top of a hill. The car begins at a height h from the top of a hill. what is the magnitude of the car\'s tangential acceleration
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
Calculate the deflection that a penny, dropped from the Empirestate building, would experience due to the coriolis force. You may ignore air drag in your calculation.
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