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A biologist keeps a specimen of his favourite beetle embedded in a cube of polystyrene plastic. The hapless bug appears to be 3.1 cm within the plastic. What is the beetle's actual distance beneath the surface?
The masses of astronauts are monitored during long stays in orbit, such as when visiting a space station. What is the mass of an astronaut who has an oscillation period of 2.00 s when in the chair
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
Consider the four masses. Find the total gravitational potential energy of this system. How does your answer to part A change if all the masses in the system are doubled.
A stream of water strikes a stationary turbine blade horizontally. The incident stream has a velocity of +16m/s whilst the exit has a velocity of -16m/s. mass of water per second that strikes the blade is 30kg/s.find the magnitude of average force ex..
Humid air breaks down in a sufficiently strong electric field, What is the magnitude of the electrostatic force for an electron and for an ion with a single electron missing
Objective questions based on work, energy, power.
Find the von Mises stress (in MPa) at the location of the strain gages.
A frictionless spring of spring constant 500 N/m has one end attached to a verticalwall and the other end to a block of mass 2.0 kg, Find the amplitude and frequency of oscillation
Air flows through the supersonic nozzle. The inlet conditions are 7 KPa and 420 degree C. The nozzle exit diameter is adjusted such that the exiting velocity is 700m/s. Calculate the exit temperature
You set up an experiment with two polarizer screens on an optical bench and collect data for the intensity of the light at the detector as you vary the relative angle between the transmission axes of the polarizers. What is intensity of the light s..
Establish the Force required to raise a 25.50 kg object by 2 pulleys, the diameter of larger circular pulley is 12.0 cm and the smaller pulley is 8.5 cm.
During gym class, a 50-kg teenager runs at 8.0 m/s along the floor toward a rope hanging 7.8 m from the ceiling. What is the tension in the rope at the moment he begins to swing upward
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