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Q: The loaded cab of an elevator has a mass of 4.70 × 103 kg and moves 191. m up the shaft in 24.0 s at…
A: Calculate the constant speed at which the elevator is moving. v=Dt=191 m24 s=7.958 m/s Here, v is…
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Q: A 5.80-kg block is set into motion up an inclined plane with an initial speed of v; = 7.40 m/s (see…
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Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…
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Q: A 4.20-kg block is set into motion up an inclined plane with an initial speed of v; = 7.40 m/s (see…
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Q: A tower crane has a hoist motor rated at 167 hp. If the crane is limited to using 65.0 % of its…
A: A tower crane has a hoist motor rated at 167 hp. If the crane is limited to using 65.0 % of its…
Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…
A: (a) Calculate the force required to move the car up the rails. F = mg * sin(29) = 950 * 9.81*…
Q: The loaded cab of an elevator has a mass of 3.0 × 10³ kg and moves 210 m up the shaft in 23 s at…
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Q: A 5.40-kg block is set into motion up an inclined plane with an initial speed of v = 8.60 m/s (see…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: A tower crane has a hoist motor rated at 155 hp. If the crane is limited to using 67.0% of its…
A: Given data: Power rating of tower crane = 155 hp Used power = 67.0% of maximum hoisting power Mass…
Q: A fully elevator cabin has a mass of 1200 kg. In 3.0 minutes, the cabin must be raised to a height…
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Q: A 3.90-kN piano is lifted by three workers at a constant speed to an apartment 22.8 m above the…
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Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…
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Q: A 5.60-kg block is set into motion up an inclined plane with an initial speed of v, = 8.60 m/s (see…
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A: Given Mass of car = m = 1.50 × 103 kg IInitial velocity = u = 0 Final velocity = v = 16.9 m/s Time…
Q: The electric motor of a model train accelerates the train from rest to 0.810 m/s in 20.5 ms. The…
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Q: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from…
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Q: A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 17.9 m/s in 12.8 s. Assume that…
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Q: What is the maximum number of passengers that can ride in the elevator? Assume that an average…
A: mass of elevator = M = 620 Kg vertical distance = h = 20 m time = t = 15.1 s Power = P = 45 hp = 45…
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Q: A 1.50 x 10°-kg car starts from rest and accelerates uniformly to 17.9 m/s in 11.3 s. Assume that…
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Q: The loaded cab of an elevator has a mass of 4.70 × 103 kg and moves 191. m up the shaft in 24.0 s at…
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Q: An electric motor is used pull a 20 kg block up along an incline of angle 12.0 degrees. The…
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The 57.25 kg crate is hoisted up the θ = 31° incline by the pulley system and motor M. If the crate starts from rest and, by constant acceleration, attains a speed of 8.30 m/s after traveling 4.98 m along the plane, determine the supplied power to the motor if the crate has moved 8 m and the coefficient of kinetic friction between the plane and the crate is µk = 0.3. Neglect friction along the plane. The motor has an efficiency of 0.668.
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