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Atwood's Machine The two masses (m1 = 5.1kg and m2 = 2.5kg ) in the Atwood's machine are released from rest, with m1 at a height of 0.95m above the floor. When m1 hits the ground its speed is 1.8m/s. Assuming that the pulley is a uniform disk with a radius of 12 cm. Determine the pulley's mass. Please show all formulas and work.
Suppose a spacecraft of mass 28000kg is accelerated to 0.25c, How much kinetic energy would it have
A 6.0-cm-diameter circle lies in the xz-plane in a region where the electric field is E =(1200i^+1200j^+1200k^)N/C
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
An observer moving toward Earth with a speed of 0.96 notices that it takes 5.2 for a person to fill her car with gas. Assume, in its place, that the observer had been moving away from Earth with a speed of 0.80.
Your Industry has just developed a new sports drink that is in a container which will keep it cool for up to 6 hours. Develop a marketing plan for this product and then write a 3 page paper describing how you would market the product.
Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
Charge q is moving at constant speed v along the positive x-axis, Find the Cartesian components of the magnetic field at a point (x,y,z) for t > 0
If half the potential energy of this water were converted into electric energy, explain how much electric power would be produced by these falls?
In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground, what is the launch speed needed to hit the bulls-eye
An ideal Voltmeter is connected across the terminals of a 12 Volt battery and a light bulb with R = 4.5 ohms is also connected across the battery terminals, Find the power generated by the Emf of the battery
Josh starts his sled at the top of a 3.3m -high hill that has a constant slope of 25 ^\circ. How far from the base of the hill does he end up
Suppose now that the apparatus is sealed, and the temperature rises to 40.0o C. Find the pressure inside the apparatus now
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