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Compute all parts of given question:
Question: A dolphin wants to swim directly back to its home bay, which is 0.840 km due west. It can swim at a speed of 4.50 m/s relative to the water, but uniform water current flows with speed 2.79 m/s in the southeast direction.
Part A: What direction should the dolphin head?
Part B: How long does it take the dolphin to swim the 0.840-km distance home?
Explain the each and every step in detail for help.
A cyclist intends to cycle up a hill whose vertical height is 170m.. Assuming the mass of bicycle plus cyclist is 75 kg
atnbsptnbsp 0 the current to a dc electric motor is reversed resulting in an angular displacement of the motor shaft
A nitrogen molecule is initially in a large volume of calm air at STP. How many collisions does the nitrogen molecule suffer in 10 minutes
A van goes around a curve on a road that is banked at an angle of 30.7 degree. Evaluate what the radius of the curve
A Carnot engine has an efficiency of 0.610, and the temperature of its cold reservoir is 376 K. Decide the temperature of its hot reservoir. If 5320 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine?
Waves travel at different velocity in different medium. How does wave velocity effect wave frequency
Two skaters, one with mass 65 kg and the other with mass 60 kg, stand on an ice rink holding a pole of length 10 m and negligible mass. How far does the 60 kg skater move
A sealed tank containing seawater to a height of 11.1m also contains air above the water at a gauge pressure of 2.85atm. How fast is the water moving
You throw a stone vertically upward with an initial speed of 5.8 from a third-story office window. If the window is 12 above the ground, find the time the stone is in flight
A 9.58-m ladder with a mass of 22.2 kg lies flat on the ground. A painter grabs the top end of the ladder and pulls straight upward with a force of 264 N. What is the net torque acting on the ladder
A ball rolling down an incline travels 6.0m in the first 0.25 seconds, and 24m in the first 0.50 seconds. What is the average speed for the first time interval
The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 4.0 earth years
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