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A dockworker applies a constant horizontal force of 89 Newton to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13 meter in a time of 4.60 second.
If the worker stops pushing after 4.60 second, determine how far does the block move in the next 5.70 second?
A 12.69 g ice cube at -6.33 oC is place in an aluminum cup whose initial temperature is 135.39 oC. What is the mass in grams of the cup
An image of the moon is focused onto a screen using a converging lens of focal length f= 35.8 cm. The diameter of the moon is 3.48×106 m, What is the diameter of the moon's image
A 110 g copper bowl contains 130 g of water, both at 24.0°C. A very hot 370 g copper cylinder is dropped into the water, causing the water to boil, How much energy (in calories) is transferred to the water as heat
A Styrofoam cup holding 155 g of hot water at 97°C cools to room temperature, 23.0°C. What is the change in entropy of the room
A 57.0-g tennis ball is traveling straight at a player at 21.0 m/s. The player volleys the ball straight back at 25.0 m/s. what average force acts on the ball
as part of an exercise routine an 81.9 kg person climbs 40.4 m up a vertical rope. how many food calories are expected
A rolling axle, 1.50 m long, is pushed along horizontal rails at a constant speed v=3.00 m/s. A resistor R=0.400Ω is connected to the rails at points a and b, directly opposite from each other. ( the wheels make good electrical contact with the ra..
A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting shell, with variable ch..
The director James Cameron recently went in a submersible 1 man submarine to the bottom of the Mariana trench. Find out how deep he went and determine the percent change in water density due to depth, using the bulk modulus. Consider only pressure ch..
At normal incidence, the intensity of sunlight at the Earth is 1400 W/m2. find the force on the Earth due to radiation pressure from the Sun
A 6080 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?
a copper bar 2.5 m long has a circular cross section of radius 2 cm. one end is kept at 80 oc and the other end is kept
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