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take east as the positive direction. an 80 kg fisherman jumps from a dock into a 129 kg rowboat at rest on the west side of the dock. if the velocity of the fisherman is 4.7 m/s to the west as he leaves the dock, what is the final velocity of the fisherman and the boat? answer in units of m/s.
The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, Determine the charge qA and q
Three astronauts, propelled by jet backpacks, push and guide a 114 kg asteroid toward a processing dock, exerting the forces, with F1 = 32 N, F2 = 52 N, F3 = 39 N, θ1 = 30°, and θ3 = 60°. What is the (a) magnitude and (b) angle (measured relative ..
What is the shortest height a plane mirror must be so that a person who is 1.6 meters tall is able to see his or her whole body? plan a ray diagram to support your answer.
Two converging lenses are separated by 23.60 cm. The focal length of each lens is 11.00 cm, Determine the final image distance relative to the lens on the right
A conducting rod AB sliding with constant speed v=2m/s on conducting rails in a uniform magnetic field with B= 0.15T. What is the current in the rod
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. Calculate the change in the combined kinetic energy of the two-car system during this collision
1. How much more light does one collect with a 4-meter diameter telescope in 0.5 minutes than with a 0.5-meter diameter telescope in 4 minutes?
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
What is the wavelength of light for the least energetic photon emitted in the Balmer series of the hydrogen atom spectrum lines
A satellite is in a circular orbit around the Earth at an altitude of 3.38 106 m. Find the acceleration of the satellite
question a 60.0-kg person rides in an elevator while standing on a scale. the scale reads 400 n. what is the
A ray of light is incident at an angle of 30 deg. to the normal on an air glass interface. find the angle the refracted ray makes to normal
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