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Solve the all parts of given problem:
Problem: A 125-kg sled is dragged by a team of dogs a distance of 2 km over a horizontal surface at a constant velocity. If the coefficient of friction between the sled and the snow is 0.15,
Part A: Find the work done by the team of dogs?
Part B: Find the energy lost due to friction?
Please show all work and steps to determine the work done by the team of dogs.
A certain automobile engine is performing work at the rate of29400 W (39 hp) by an efficiency of 22%. At what rate is heat being expelled by the engine?
a charge of 7 nc is uniformly distributed around a ring of radius 10 cm that has its center at the origin and its axis
A certain freely falling object, released from rest, requires 1.05 s to travel the last 33.0 m before it hits the ground. Find the total distance the object travels during the fall
In a head-on collision, a car stops in 0.23 s from a speed of 11 m/s. The driver has a mass of 90kg {\rm kg}, and is, fortunately, tightly strapped into his seat.
At the center of a 62-m-diameter circular ice rink, a 86 kg skater traveling north at 2.75 m/s collides with and holds onto a 50 kg skater who had been heading west at 3.58 m/s
A space vehicle is traveling at 4450 km/h relative to the Earth, What is the speed (km/h) of the command module relative to Earth after the separation
The desired overall magnification of a compound microscope is 140x.The objective alone produces a lateral magnification of 12x. Decide the required focal length of the eyepiece.
If a violin string is tuned to a certain note, by how many times must the tension in the string be increased if it is to emit a note of 4 times the original frequency
What number of photons per second of frequency 100 MHz is needed by an FM radio that can just detect a signal of 10-12 W
a baseball is hit from 1m above the ground and attains a maximum height of 21m and horizontal distance of 100m. a
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. The plate is 11.00 cm thick (vertical dimension) and covered with water (n = 1.33) to a depth of 12.5 cm. Calculate the apparent thickness of the plate
Upon being struck by 240 nm photons, a material ejects electrons with a maximum kinetic energy of 2.58 eV
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