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A 70-kg astronaut floating in space in a 110-kgMMU (manned maneuvering unit) experiences an acceleration of 0.029 m/s2 when he fires one of the MMU's thrusters.
Part A If the speed of the escaping N2 gas relative to the astronaut is 490 m/s, how much gas is used by the thruster in 5.0 s?
Part B What is the thrust of the thruster?
The magnetic force per meter on a wire is measured to be only 21% of its maximum possible value
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
A 10 kg block is sitting motionless next to a spring that has a spring constant of 500 N/m. How far is the spring compressed while you are still holding it
When a signal of intensity 3.0kWm-2 is applied at the input of an amplifier of length 10m, the output signal intensity is 36kWm-2. When the input intensity is reduced to 1.0kWm-2 the output is 20kWm-2.
A certain siren radiates sound uniformly in all directions. At a distance of 17m from the siren, How many watts of power does the siren put out
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
After a tornado, a 0.50-g drinking straw was found embedded 4.5 cm in a tree. What was the straw's speed
What is the change in Marys potential energy. Find the final speed of the particle.
Five moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 460 to 155 K. Determine the work done by the gas
A person who weighs 645 N is riding a 94.9 N mountain bike. what is the area of contact between each tire and the ground
a child swings a mass on a string in a horizontal circle 1.2 meter off the ground. The string has a length of 0.6 meters, how far will the mass travel before it lands
Express how unmet basic physiological needs of oxygen, nutrition, temperature, and humidity threaten clients' safety.
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