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The density of liquid nitrogen is 0.808-g/mL. A tablespoon of liquid nitrogen (35-mL) is placed in a 1.0-L thermos flask and sealed. The flask is left forgotten in the back of a lab at 20-°C. What pressure builds up in the flask (give your answer in atmospheres)?
A 1.50 grinding wheel is in the form of a solid cylinder of radius 0.140. Use equation to calculate the work done by the torque
Jordan is building a compound microscope using an eyepiece with a focal length of 7.50 cm and an objective with a focal length of 1.500 cm. How far apart should Jordan place the lenses
A cannon tilted up at a 28? angle fires a cannon ball at 70m/s from atop a 22m -high fortress wall. What is the ball's impact speed on the ground below
A stretched string fixed at each end has a mass of 40g and alength of 8.00m. The tension in the string is 49.N, What is the vibration frequency for this harmonic
a 1200 kg automobile moving at 25 ms has it brakes applied with a deceleration of 8.0 ms2. how far does the car travel
A street lamp weighs 150N. It is supported by two wires thatform an angle of 120 degrees with each other.The tensions in thewires are equal. find the tension in each wire supporting the street lamp
A 67.6 kg person jumps from rest off a 2.91 m-high tower straight down into the water. Neglect air resistance during the descent. Determine the magnitude of the average force
One end of an iron poker is placed in a fire where the temperature is 495°C, and the other end is kept at a temperature of 27°C. The poker is 1.2 m long and has a radius of 5.0 multiplied by 10-3 m. Ignoring the heat lost along the length of the p..
A satellites are placed in a circular orbit that is 3.84 × 108 m above the surface of the earth. What is the magnitude of the acceleration due to gravity
a mass M is hanging from two strings. There is a tension of 34 N in the string on the left and a tension of 24 N in the string on the right. How heavy is the object
a 4kg mass is on the end of a 80 cm long cord. the mass is pulled to an angle of 35 degrees from the vertical and then
Ultraviolet light of wavelength 280 nm is used in an experiment on photoelectric effect with lithium (c = 2.5 eV) cathode. Find the maximum kinetic energy of the photoelectrons and (b) the stopping potential.
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