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Three balls with masses of 3.0 kg, 1.0 kg, and 5.0 kg are located at coordinates (8.0m,8.5m), (8.5m,4.5m), and (4.5m,1.0m), respectively, and are connected by massless rods. What is the x-coordinate of the center of mass? For the three balls above, what is the y-coordinate of the center of mass?
The electric field in a region of space has the components Ey = Ez = 0 and Ex = (5.90 N/(C·m))x. Point A is on the y axis at y = 4.30 m, What is the potential difference (in V) VB - VA
The label on a candy bar says 480 Calories. Assuming a typical efficiency for energy use by the body, if a 62 person were to use the energy in this candy bar to climb stairs, how high could she go?
If she were to use the mattress as a trampoline losing contact with it for part of each cycle. What minimum amplitude of oscillation does she need.
Find out the work completed by neoconservative forces in stopping plane. At the nozzle exit, diameter is 2.5 cm and the density is 1.29kg/m^3. What is the speed of the air as it leaves the nozzle.
There is a uniform electric field on both sides of a large plane. Its magnitude is 80 N/C and its direction is toward the plane, on each side of it
After impact, the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.650, illustrate what was the speed of the bullet immediately before impact?
When blue light of wavelength 465 nm illuminates a diffraction grating, it produces a 1st order utmost but no 2nd order maximum.
A particle with a charge of q = -5.40 nC is moving in a uniform magnetic field of vec{B}=( -1.24 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}. find v_x, the x component of the speed of the particl..
A wheel rotates with a constant angular acceleration of 4.35 rad/s2. Suppose that the initial angular speed of the wheel is 2.99 rad/s. Elucidate through what angle does the wheel rotate after 2.88 s?
If a person radiates about 66 W of power at room temperature, how long does it take for person to radiate away the energy acquired by consuming a 230 Calorie doughnut.
Consider a heat pump which is used to cool down a home during the summer. Its coefficient of performance in cooling mode is 4.14. at what rate does it remove heat from the home
An object is located 8.00 cm from a converging lens that has a focal length of 10.0 cm. The height of the object is 0.67 cm. What is the height hi of the image
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