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A force is given by F(x)=5x^3 (in the x-direction) acts on a 1kg mass moving on a frictionless surface. The mass moves from x=2m to x=6m.
a) How much work is done by the force? and
b) If the mass has a speed of 2m/s at x=2m what is the speed at 6m.
Ignoring the container and the equilibrium vapor pressure of the liquid at 51.5 °C, find out the ratio of the mass of steam to the mass of ice. The specific heat capacity of steam is 2020 J/(kg C°).
Calculate the change in potential energy of a 86.4 kg man when he takes an elevator from the first floor to 35th floor, if the distance between floors is 4.11 m
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V greatest potential difference operating at 5000 rad/s .
A sound pulse has a power of 948.5 watts. find the intensity of the sound at the time of observation
A parallel-plate air-filled capacitor having area 50 cm2 and plate spacing 1.3 mm is charged to a potential difference of 710 V, find the energy density between the plates
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
The atmosphere of the sun consists mostly of hydrogen atoms (not molecules) at a temperature of 6000 K. What are the average translational kinetic energy per atom
a boat takes 3.00 hrs to travel 25.0 km down a river then 6.00 hrs to return. how fast is the river moving
A snowmobile climbs a hill at velocity v-up. The slope of the hill is a 2 ft rise for every 70 ft of distance. The resistive force of the snow is equal to 4.12 percent of the weight of the snowmobile. How fast will the snowmobile move downhill, assum..
A 2.83-kg book slides 1.17 m along a level surface. The coefficient of kinetic friction between book and surface is0.41. Find the work done by friction
A pitcher throws a baseball at 41.0 m/s. If the ball thrown horizontally at this speed, explain how much will it drop by the time it reaches the catcher who is 17.0 m away from the point of release?
Multiple-Concept Example 8 provides useful background for part b of this problem. What is the angular displacement (in rad) of each wheel
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