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Solve the all parts of given question:
Question: The rolling resistance for steel on steel is quite low; the coefficient of rolling friction is typically r=0.002. Suppose an 180,000 kg locomotive is rolling at 21 m/s on level rails.
Part A: If the engineer disengages the engine, how much time will it take the locomotive to coast to a stop?
Part B: How far will the locomotive move during this time?
I need help to solve the above question and express your answer to two significant figures and include the appropriate units.
A proton starts out moving horizontally from a positive plate to a negative plate of equal size and equal magnitude of charge. Calculate this difference of heights in meters
a ball is is throw straight up from initial position of 2.0 m above ground and with an initial velocity of 9.0 ms. what
collectible coins are sometimes plated with gold to enhance their beauty and value. consider a commemorative
Wrongly called for a foul an angry basketball player throws the ball straight down to the floor.if the ball bounces straight up and returns to the floor 2.8s after first striking it, what was the ball's greatest height above the floor?
Find the positions of the two masses at any subsequent time t (before either mass returns to the table) and describe the motion.
A helicopter is lifting two crates simultaneously. One crate with a mass of 160 kg is attached to the helicopter by cable A. The second crate with a mass of 73 kg is hanging below the first crate and attached to the first crate by cable B. As the hel..
A steel cable with a total length of 22.6 m and total mass of 68 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
1. all objects radiate energy in much the same way as an ideal blackbody. so why is it difficult to see objects in a
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 61.22 diopters, How far is the blackboard from her eyes
A circular coil consisting of a single loop of wire has a radius of 28.0 cm and carries a current of 28 A. It is placed in an external magnetic field of 0.28 T. Discover the torque on the wire when the plane of the coil makes an angle of 35° with the..
The inner radius of a bone is half the outer radius. What would the outer radius of the bone be if, for a given torque, it were to twist through the same angle as a steel rod of the same length with a 1-cm radius? (the polar moment of inertia of a ho..
A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north
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