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A 1110 N man stands in the middle of a frozen pond of radius 4.18m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 0.645 kg physics textbook horizontally toward the north shore, at a speed of 6.71 m/s. How long does it take him to reach the south shore? Answer in units of s.
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.06 × 106 m/s, Find the centripetal acceleration of the electron
A person's prescription for her new bifocal glasses calls for a refractive power of -0.461 diopters in the distance-vision part, & a power of +1.83 diopters in the close-vision part. Compute the near & far points of this person's uncorrected visio..
A 3.00 kg block is released from rest at the elevated end A of a frictionless track that slopes down to a point B and continues horizontally to a point D, Find the work done on the block by the normal force exerted by the track
Consider a model thermodynamic system in which the allowed (nondegenerate) energy levels are 0, ? (epsilon), 2? (epsilon), 3? (epsilon). Determine how many macrostates are possible
A skateboarder, starting from rest, rolls down a 13.1-m ramp. If the ramp is inclined at 26.5 ° with respect to the ground, what is the component of her acceleration that is parallel to the ground
A 1.0 μF capacitor has a potential difference of 6.0 V applied across its plates. how much additional energy does the capacitor store
Bored, a boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a massive block of ice. find the coefficient of friction between the cheese and ice
As a 13,800 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. what was the plane's landing speed
While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north,300 m east, Find the resultant displacement from the cave entrance
At rest, a car's horn sounds at a frequency of 410 Hz. The horn is sounded while the car is moving down the street. What is the speed of the car
A freezer has a coefficient of performance of 2.40. The freezer is to convert 1.98kg of water at 26.0 oC to 1.98kg of ice at -5.00 oC in 1 hour. How much electrical energy is consumed by the freezer during this hour
A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length?
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