Speed of the coupled cars
A railroad diesel engine weighs 4 times as much as a freight car. If the diesel engine coasts at 5 km/h into a freight car that is initially at rest, show the speed of the coupled cars
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With regenerative braking, such as that used in hybrid vehicles, only 70 percent of the kinetic energy is dissipated.) (a) Find the energy dissipated by friction. (b) Find the coefficient of kinetic friction between the tires and the road.
A cargo plane is flying horizontally at an altitude of 11 km with a constant speed of 765 km/hr when a large crate slides out of the rear of the plane. How long does it take the crate to hit the ground? The acceleration of gravity is 9.81 m/s2. Ho
In Bosnia the ultimate test of a young man's courage use to be to jump off a 400 year old bridge into the river near Neretva 23m below the bridge. If the speed of sound and air is 340 m/s how long after the jumper took off did a spectator on the
A spacecraft passes you traveling forward at 0.235 the speed of light. By what factor would its relativistic momentum increase if its speed doubled?
What type of weather front would be responsible for the following weather forecast? "Cool today with rain becoming heavy by this afternoon. Slightly warmer tomorrow. Winds southeasterly becoming westerly to northwesterly by tomorrow morning."
If destructive interference occurs at a particular instant, by what minimum amount must the difference of two path lengths in the U-shaped tube be increased in order to hear constructive interference? The speed of sound is 345 m/s.
An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north. What time interval is required for the trip if the plane flies through a headwind blowing at 37.8 km/h toward
How does Tullock define the Old Testament prophecy? Based on Tullock's definition, how is the term prophecy often misunderstood today? Based on my readings chap 1-13, to whom the prophecies address and when were they expected to be fullfield?
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