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Matthew starts from rest on top of 8.45 m high sledding hill. He slides down the 32-degree incline and across the plateau at its base. The coefficient of friction between the sled and snow is 0.128 for both the hill and the plateau. Matthew and the sled have a combined mass of 27.5 kg. Determine the distance which Matthew will slide along the level surface before coming to a complete stop.
The air inside a bicycle tire pump has 178 joules of work done on it as 98.5 joules of heat is conducted away from it. What is the change in internal energy of the air
Two pipes in series have the following properties: L1 ¼ 200 m, D1 ¼ 400 mm, K1 ¼ 2, L2 ¼ 650 m, D2 ¼ 350 mm, K2 ¼ 3. The upstream piezometric head is HA ¼ 200 m and downstream HB ¼ 57 m. For both pipes, the friction factor is f ¼ 0.025. Estimate t..
If a projectile is launched vertically from the Earth with a speed equal to the escape speed, how far from the Earth's center is it when its speed is 1/6 of the escape speed
Suppose 199 W of heat flows by conduction from the blood capillaries beneath the skin to the body's surface area of 1.37 m2. estimate the average distance of capillaries below the skin surface
A 10.0-cm long wire has a diameter of 0.1 mm and a resistivity of 4.0 ´ 10-7 ohm-cm, A 6.0-volt battery is connected to the resistance, What current exists in the circuit
A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin\'s displacement
Displacement d1 is in the yz plane 58.4° from the positive direction of the y axis, has a positive z component of 5.99 m, find the angle between d1 and d2
The width of the contact of each wire with your skin is 1.10 cm and the thickness of the conducting layer of your skin is 0.023 mm, calculate the resistivity of your skin
Three moles of a monatomic ideal gas are heated at a constantvolume of 2.34 m3. The amount of heat added is 3.50 x103 J. What is the change in the temperature of the gas
An electric motor can accelerate a Ferris wheel of moment of inertia I = 19500 kg·m2 from rest to 9.4 rev/min in 12.0 s, Determine the torque generated by the motor to bring the wheel to 9.4 rev/min
a potter;s wheel is a uniform disc of diameter 1m and a mass of 70kg. what min total of friction force must be applied to the disk
The atomic mass of copper is 64 g/mole, and the density of copper is 8.9 g/cm3.
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