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Problem: A football coach sits on a sled while two of his players build their strength by dragging the sled across the field with ropes. The friction force on the sled is 1200Nand the angle between the two ropes is 25o.
Part A: How hard must each player pull to drag the coach at a steady 2.50 m/s? Assume both players pull with the same force.
Rework your solution from the beginning and check each step carefully.
The Saturn's ring has a diameter of about 2.00x10^5km and the distance between the Earth and the Saturn is 1.40x10^9km. Based on your calculation on resolution power, will the ring be visible in telescope.
A transformer has an input coil with Nin = 200 turns and Nout = 850 turns. what is the voltage across the output circuit
What is the longest wavelength radiation that will emit photoelectrons from sodium metal for which the work function is 2.28 eV
A diffraction grating 23.0 mm wide has 5780 rulings. Find the angle at which the first intensity maxima occurs if the incident radiation has a wavelength of 585.0 nm
For the arrangement shown in the figure below, an object is placed 0.37 m in front of the converging lens, which has a focal length of 0.17 m. where is the final image formed
questionyou are standing 0.75 m from your bathroom mirror in morning. how far away is your image from you? answer is
She only uses the most accelerated depreciation method possible. The computer is the only personal property which she places in service during the year. Illustrate what is her total depreciation deduction for 2011?"
A projectile is launched with a momentum of 200 kg*m/s and 1000 J of kinetic energy. What is the mass of the projectile
Two wheels have the same mass and radius of 4.5 kg and 0.39 m, respectively. determine the net external torque that acts on each wheel
what is the energy range in joules and in ev of photons in the visible spectrum of wavelength 400 nm to 750 nm? enter
a 1000 kg elevator is being lifted vertically upward by a strong cable.a what does the elevator weigh?b if the cable
Calculate moment of inertia of a 4X4 square (tilted, so that it looks like a diamond) with a centroid line going through the square and is 8 inches above the x-axis, so it looks like half a triangle (half the square) is under the centroid line and th..
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