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Solve the following question given below:
Question: How much work does Scott do to push a 78kg sofa 3.0m across the floor at a constant speed? The coefficient of kinetic friction between the sofa and the floor is 0.24.
Please show all work and clearly explain to determine the work.
The wheel of a car has a radius of 0.360 m. The engine of the car applies a torque of 426 N·m to this wheel, What is the magnitude of the static frictional force
A 150 kg elevator carries a 35 kg passenger. If the elevator accelerates upward at 1.2 m/s2, what is the tension in the elevator cable
m1 = 26.00 kg, m2 = 13.10 kg, R = 0.12 m, and the mass of the uniform pulley M = 5.00 kg. Calculate the time interval required for m1 to hit the floor
Two blocks with masses, 2.5kg and 3.5kg, rest on a frictionless surface and are connected by a light string, What is the magnitude of the force in the string
A uniform ball with a mass of 125 is rolling without slipping along the horizontal surface of a table with a speed of 4.5 m/s, What is the rotational kinetic energy of the ball
Below are birds-eye views of six identical toy cars moving to the right at 2? Various forces act on the cars with magnitudes and directions indicated below. All forces act in the horizontal plane and are either equivalent or at 45 or 90 degrees to ca..
If a particle of mass 4.9 kg is moving east at 10 m/s and a particle of mass 19 kg is moving west at 10 m/s, what is the velocity of the center of mass of the pair
a batter hits a fly ball which leaves the bat 0.88m above the ground at an angle of 62 with an initial speed of 29m/s heading toward centerfield. how far from home plate would the ball land if not caught
A person makes a quantity of iced tea by mixing 520 g. of hot tea with an equal mass of ice at 0C. what are the final temperature and mass of the ice remaining if the initial hot tea is at temperature of 90C? 70 C?
A 15.00 block is attached to a very light horizontal spring of force constant 450 and is resting on a smooth horizontal table. Suddenly it is struck by a 3 stone travelling horizontally at 8 to the right, whereupon the stone rebounds at 2.00 horizont..
The earth orbits the sun once a year (3.16 x 10^7 s) in a nearlycircular orbit of radius 1.50 x 10^11 m. With respect to the sun,determine the magnitude of the earth’s centripetal acceleration.
The brick wall (of thermal conductivity 1.1 W/m•oC) of a building has dimensions of 2.8 meter by 15 meter and is 9 centimeter thick. Determine how much heat flows through the wall
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