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Question: A 20-kg loudspeaker is suspended 2.0 m below the ceiling by two ropes that are each 30 degrees from vertical.
Part A: What is the tension in the ropes?
I need help to determine the tension in the ropes.
A steel rod of mass m and length L has the linear expansion coefficient X. It is standing vertically and supports a box of mass M on its top. what is the work done by the rod
A viscous fluid is flowing through a small tube at a rate of 2.00 × 10-4 m3/s. what is the rate of flow of the fluid
An astronaut is tethered by a strong cable to a spacecraft. The astronaut and her spacesuit have a total mass of 104 , while the mass of the cable is negligible. What force does the cable exert on the astronaut
You exert a force as shown in the diagram to push a large crate of books (about 1 m high, m = 45.0 kg) across a rough floor at constant speed v = 0.650 m/s. Find the rate at which work is done by you
At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 5.03 m/s. What is the minimum time that a player must wait before touching the ball
A car with a mass of 1300.0 kilogram is traveling south at 12.0 m/s collides with a car with a mass of 1800.0 kilogram that is going west at10.0 m/s and becomes entangled. Calculate the magnitude of the impulse applied to the 1800.0 kilogram car
a parallel-plate capacitor has plates with an area of 1.3times10-2m2 and a separation of 0.83mm. the space between the
A hot iron horseshoe (mass = 0.50- kg) which has just been forged, is dropped into 1.45 -L of water in a 0.50 kg iron pot at first at 22oC. If the final equilibrium temperature is 32oC, calculate the initial temperature of the hot horseshoe (in Ce..
An aluminum rod is 18.0 cm long at 20°C and has a mass of 350 g. If 12500 J of energy is added to the rod by heat, what is the change in length of the rod
The radius of a typical nucleus is about 5.0 x 10^-15 m. Assuming this to be the uncertainty in the position of a proton in the nucleus, approximation the uncertainty in the proton's energy (in eV).
The figure shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance L = 0.381 m. The rails are connected by a 13.1 ohm resistor, and the entire system is in a uniform magnetic field with a magnitude o..
Calculate the cost of electricity using a AA alkaline battery compared to the cost of electricity we use at home
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