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If the velocity of a 5.0 kg object tied to a string is constant at 30 m/s when traveling in a vertical circle having a radius of 1.40. What must be the minimum strength of the string?
A snowboarder of mass 86 kg travels down the slope of height 150 m, what is the work done on her by friction
Planet-X has a mass of 4.25×1024 kg and a radius of 6050 km. What is the Second Cosmic Speed i.e. the minimum speed required for a satellite in order to break free permanently from the planet
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
Precisely 1.10 after the speeder passes, the policeman steps on the accelerator. If the police car's acceleration is 2.10 m/s2, Explain how much time elapses after the police car is passed until it overtakes the speeder
A 2.67 ? resistor, a 5.52 ? resistor, and a 8.10 ? resistor are connected in series with a 24.0 V battery. What is the equivalent resistance? What is the current in each resistor?
A 42.0 kg seal at an amusement part slides from restdown a ramp into the pool below. evaluate the work done by kinetic friction
A 1000-turn coil of wire that is 2.4cm in diameter is in a magnetic field that drops from 0.15T to 0 T in 11ms, compute the emf of the coil
A fathom is a method for measuring lengths, usually reserved for measuring the depth of water. what is the distance in fathoms
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, exerting forces of 1.17 103 N, compute the instantaneous acceleration of the puck
The coefficient of friction between a block of mass m1= 3Kg and the surface is mu=.4. The system starts from rest. What is the speed of the ball of mass m2=5Kg when it has fallen a distance of h=1.5m?
A glass window pane has an area of 3.0m^2 and a thickness of .60 cm. how much heat flows through the window per hour
A pendulum of length 3.53 m with a bob of mass 5.50 kg is pulled aside until the bob makes an angle of 35.0° with the vertical. Find the speed of the bob as it passes through the lowest point in its swing
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