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A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. The coefficient of static friction between the plane and the object is 0.552. A second object that has a mass of 4.75 kg is connected to the first object with a massless string over a massless, frictionless pulley. Calculate the initial acceleration of the system and the tension in the string once the objects are released.
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.11 eV. What is the width of the square well
Describe briefly a current health problem. A father racing his son has half the kinetic energy of the son, who has one-third the mass of the father. The father speeds up by 2.5 m/s and then has the same kinetic energy as the son.
A small rocket to gather weather data is launched straight up. Several seconds into the flight, its velocity is 120 m/s, What is the net force on the rocket
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) Draw a diagram showing the wire loop, compute the induced emf in the wire loop
A series RLC circuit is connected across a 10.0 kHz source. The 1.2 H inductor and 1000 ? resistor are fixed whereas the capacitor is variable. What average power will be dissipated
A 3.00-g bullet, traveling horizontally with a velocity of magnitude 370 m/s, is fired into a wooden block with mass 0.800 kg, What is the decrease in kinetic energy of the bullet
12 Gallons per minute of water flows through a heater and must be raised from 20 to 90 Celcius. Calulate the rate of heat supplied
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates while a constant force acts on it. How much work is done by the force on the coin during the displacement
What is the magnitude of the maximum displacement from the equilibrium of the top of the building, What is the maximum velocity of the top of the building
An iron bar 40 cm long is braised to a copper bar 50 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
what is the magnitude and direction of the force. explain the magnitude and direction of the force she exerts on you?
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did stone fall.
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