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A 839-N man stands in the middle of a frozen pond of radius 6.0 m. 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 1.2-kg physics textbook horizontally toward the north shore at a speed of 6.0 m/s. How long does it take him to reach the south shore?
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Physics - Speed and Direction, Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next.
A cube of iron, of side length 14cm, is heated from 10?C to 90?C; Calculate the total work done ON the cube and the change in internal energy of the cube
An 8.00 point mass and a 15 point mass are held in place 50 apart. A particle of mass is released from a point between the two masses 13.00 from the 8 mass along the line connecting the two fixed masses.
What is the linear speed of the hoop's center of mass just as the hoop leaves the incline and rolls onto a horizontal surface
A stone is dropped from a cliff; 2.47 s later another stone is thrown downward with an initial speed of 35 m/s. Find the height of the cliff
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. find the number of radians from rest until the time the disk reaches the 5.5 rad/s angular speed
This bat hears its own sound plus the sound reflected by the wall. Explain how fast should the bat fly in order to hear a beat frequency of 10.0Hz?
The radius of Earth is about 6.38 multiplied by 10^3 km. A 7.02 multiplied by 10^3 N spacecraft travels away from Earth. What is the weight of spacecraft at the following distances from Earth's surface: 6.38 times 10^3 km and 1.4 times 10^4 km.
If a disk rotating at 10 rad/s has a moment of inertia of 0.5 kg m^2. Then another disk with a total mass of 5 kg, What is the angular speed of the new system in units of rad/s
A nurse measures the temperature of a patient to be 39.3°C. What is this temperature on the Fahrenheit scale
Draw a ray diagram depicting the following: and object is 20cm in front of a concave mirror whose radius of curvature is 25cm. Calculate the image position using the mirror equation
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