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Three uniform spheres of masses m1 = 2.50 kilogram, m2 = 4.00 kilogram, and m3 = 8.00 kilogram are located at the corners of a right triangle. Find the resultant gravitational force on the object of mass m2, assuming the spheres are isolated from the rest of the Universe.
A steel ball (140 gm) is fired at 120 ms-1 toward a nether steel ball (4 kg) on a smooth frictionless surface. Draw a diagram and suppose that the collision is elastic. Determine The momentum of the balls after the collision
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. At what rate will this refrigerator deliver heat to the room in which it..
a boat is traveling with a velocity of 5 kmhr upstream. the river is flowing at a velocity of 2kmhr downstream. what is
You are given a slide with two slits cut into it and asked how far apart the slits are. You shine white light on the slide, What is the separation of the two slits
A migrating bird is initially flying south at 10 m/s. To avoid hitting a high-rise building, the bird veers and changes its velocity to 3 m/s east over a period of 2 s. What is the bird's average acceleration (magnitude and direction) during this ..
A wrecking ball (weight = 4800 N) is supported by a boom, which might be assumed to be uniform and has a weight of 3200 N. As the drawing shows, a support cable runs from the top of the boom to the tractor. The angle among the support cable and the h..
4m, 32 degrees east of north 57.3m, 36 degrees south of west 17.8m, straight south. calculate the resultant displacement vector
The asteroid 243 Ida has a mass of about 4.0×1016 kg and an average radius of about 16 km, How long would it take for your rock to return and hit you in the back of the head
An ideal gas in a container of volume 0.15m^3 at 0c is kept under the pressure of 10 atm. Determine the number of gas molecules in the container
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
A 4.9 kW heater is designed to beconnected to a 120 V rms source. What is the power dissipated bythe heater if it is instead connected to a 120 V dc source?
A uniform magnetic field of magnitude B= 1.2 teslas is directed toward the bottom of the page in the -y direction as shown above. At time t=0, a proton p in field is moving in the plane of the page with a speed v0= 4 x 10^7 meters per second in a ..
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