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Consider a beam that is 2 meter long and supported by a rope. It is pressed against the wall. There is no friction between the beam and the wall. If the beam has a mass of 2 kilogram and a sign with a mass of 10 kilogram is hung off of the end of the beam, can the system be in static equilibrium? Determine what is the tension in the rope? Note the angle is 30 degrees.
Two atmospheric sound sources A and B emit isotropically at constant power. find the ratio of the larger power to the smaller power
a battleship simultaneously fires two shells toward two identical enemy ships. one shell hits ship a which is close by
you are piloting a spacecraft whose total mass is 1110 kg and attempting to dock with a space station in deep space.
a small object a electrically charged creates an electric field. at a point p located 0.250 m directly north of a the
There is a 1.2 m distance between a crest and an adjacent trough in a series of waves on the surface of a lake. What is the speed of these waves
A steel wire is strung between two supports attached to aceiling. Initially, there is no tension in the wirewhen it ishorizontal. What is the radius of the wire
A 20 wood ball hangs from a 1-long wire. The highest tension the wire can withstand without breaking is 600. A 0.90 projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have with..
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 multiplied by 1011 solar masses. What should the orbital period of that star be
A helicopter is lifting two crates simultaneously. One crate with a mass of 160 kg is attached to the helicopter by cable A. The second crate with a mass of 73 kg is hanging below the first crate and attached to the first crate by cable B. As the hel..
What will be the lowest possible temperature to which very dry air at T = 104F can be cooled by evaporation? Consider p = 1000hPa and latent heat of vaporization constant and equal to 2.4 x 10^6 J/kg.
The plates of a parallel plate capacitor are 'd' mts apart. At t=0 an electron is released at the bottom plate with a velocity v' normal to the plates . The potential of the top plate with respect to the bottom is -Vm Sin(ωt). Find the position of th..
Two astronauts on opposite ends of a space ship are comparing lunches. One has an apple, the other has an orange. What is the final speed and direction of the apple
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