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Question1
A ferryboat transports tourists among three islands. It sails from the first island to the second island, 5.98 km away, in a direction 37.0° north of east. It then sails from the second island to the third island in a direction 78.0° west of north. At last, it returns to the first island, sailing in a direction 28.0° east of south.
(a) Compute distance between the second and third islands. (b) Compute distance between the first and third islands.
Question2
The gravitational force exerted on a baseball is 2.29 N down. A pitcher throws ball horizontally with velocity 16.0 m/s by uniformly accelerating it all along a straight horizontal line for a time interval of 168 ms. the ball starts from rest.
What are magnitude and direction of the force the pitcher exerts on the ball?
Two of the same capacitors C are wired in series. When they are connected to a +30V battery, How much energy each capacitor stores
A dolphin in seawater at a temperature of 25 °C makes a chirp. How much time passes before it hears an echo from the bottom of the ocean, 208 m below.
An object with a charge of 0.980 µC is placed at the center of a regular icosahedron with 20 equivalent surfaces. What is the electric flux through one surface of the icosahedron?
An electric scooter has a battery capable of supplying 140 Wh of energy. If friction forces and other losses account for 60.0 percent of the energy usage, what altitude change can a rider achieve when driving in hilly terrain, if the rider and scoote..
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
An electron is projected with an initial speed 1.00×106 into the uniform field between the parallel plates. Suppose that field between the plates is uniform and fixed vertically downward, and that field outside the plates is zero. The electron enters..
A ball is at the top of a ramp that is 4.5 m above a table. If the ball rolls without friction, how fast is it going at the bottom of the ramp
A baseball has a velocity of 41.5 m/s (92.8 mi/h), directed horizontally, as it is released by a pitcher. Calculate the ball's instantaneous acceleration just before it is released
Vector A, which is directed along an x axis, is to be added to vector Bvec , which has a magnitude of 3.0 m, with a magnitude that is 5 times that of A, What is the magnitude of A
When point charges q1 = +7.7 µC and q2 = +5.7 µC are brought near each other, Determine the distance between the charges
Consider a 10.0 kilogram block of copper, specific heat = 387 J/kg*C. The initial temperature of the copper is 25*C, obtain the final temperature of the block
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
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