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A 75-kg canoeist stands in the middle of her 20-kg canoe. The canoe is 3.0 m long, and the end that is closest to land is 2.5 m from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe. Calculate the distance from the canoeist to shore.
___m
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s?
A light ray in air is incident on a transparent material whose index of refraction is n, Evaluate your expression for light incident on glass
On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected, What is the difference in travel time for light that travels only through space to the moon and back and light that travels through ..
A certain dog whistle operates at 23.0 kHz while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
On a frictionless table, a glob of clay of mass 0.340kg strikes a bar of mass 1.44kg perpendicularly at a point 0.10m from the center of the bar and sticks to it.
What is an average speed of this train
What is the electric potential between the two terminals. A capacitor is formed by placing a 20 cm long charge carrier charged to +10nC placed 5cm away from and parallel to a 20 cm long charge carrier charged to -10 nC. Find the electric field at 1..
Use the value of the Sun's luminosity (3.90×10^26 watts, or 3.90×10^26 joules per second) to calculate what mass of hydrogen the Sun will convert into helium during its entire main-sequence lifetime of 1.2×10^10 years.
A submarine is 304 m horizontally out from the shore and 126 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 232 m from the shore. If beam just strikes the top of a building..
An archer wishes to shoot an arrow at a target at eye level a distance of 49.0 m away. what angle should the arrow make with the horizontal as it is being shot
A vessel whose walls are thermally insulated contains 2.3 kg of water and 0.35 of ice, all at the temperature of 0.0 . The outlet of a tube leading from a boiler in that water is boiling at atmospheric pressure is inserted into the water. How many..
A 1 KW motor accelerates centrifuge in 1 minute from rest to speed 1000 rmp. Find moment of inertia of the centrifuge
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