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A 4 kg dog stands on one end of a 20 kg boat. The dog is initially 6 m from the shore, but then walks along the boat 2 m towards the shore. Answer the following questions assuming that there is no friction between the boat and the water:
a) How far has the center-of-mass of the "dog-boat system" moved after the dog has walked the 2m?
b) How far has the boat moved after the dog has walked the 2m ?
A solid sphere of mass 2.5 kg and a radius 0.15m starts from rest at the top of the a ramp inclined 15 degrees, What is the total kinetic energy of the sphere when it reaches the bottom of the ramp
plan a free-body diagram for the charge.
A highway is to be built between two towns, one of which lies 36.0 km south and 88.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed? length km..
A closely wound rectangular coil of 80 turns has dimensions 25 rm cm by 40 rm cm. The plane of the coil is rotated from a position in which it makes an angle of 37 degrees with a magnetic field of 1.10 rm T to a position perpendicular to the field..
display a pendulum bob is suspended from a pivot. show that if I draw the pendulum back by an angle θ, the center of the bob is elevated by the distance.
Determine the third particle's speed and direction.
how far is this point horizontally from the end of the ramp.
Illustrates the difference between acceleration and velocity
At rest, the car's horn sounds at a frequency of 455 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 427 Hz. What is speed of the car.
What are the forces acting on the board due to the two supports as a diver of mass 63 kg stands at the end of the board over the water.
Astronauts put their spaceship into orbit about a planet. How far above the planet's surface are they orbiting
A 5.70 cm x 3.10 cm rectangle lies in the xy-plane, What is the electric flux through the rectangle if E = (50.0 i-hat + 60.0 k-hat) N/C
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