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What is the place of the centre of mass of a triangular shaped sheet of metal of uniform density? The triangle is an isosceles triangle of sides 1.3m long. Use calculus to work problem
In the 1950s, an experimental train that had a mass of 2.00 104 kg was powered across a level track by a jet engine that produced a thrust of 5.30 105 N for a distance of 509 m. Assume that air resistance is negligible.
If the activation energy for the vacancy formation is given as 0.77 eV for aluminium at (650 degrees Celcius) ^3, what would be the number of vacancies at 650 degrees Celsius? The atomic weight and the density of aluminium is 26.98 g/mol and 2.62 ..
A beach ball filled with air is pushed about 1 m below the surface of a swimming pool and released from rest. Which of the following statements are valid, assuming the size of the ball remains the same?
problem a rock is thrown at an angle theta above the horizontala neglecting air resistance use newtons second law to
A 1200 kg car is moving with a velocity of 20 m/s when the brakes are applied uniformly, Find the braking force on the car by finding the acceleration of the car
a 3 kg mass attached to a spring oscillates with a period of 0.5 seconds and amplitude of 1/4 meter. find the maximum speed of the mass
A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane so that the net force acting on it is zero? Express your answers usi..
A proton moves .10m along the direction of an electric field of a magnitude 3.0V/m. What is the change in kinetic energy of the proton
a lens with focal length 50 mm and a maximum aperture f2 forms an image of an object 9.0 m away.a. what is the
A body is traveling at 16m/s and comes to rest after undergoing a uniform negative acceleration for 40m. What is the acceleration of this body
an aluminum rod is 37cm long at 35.1 degree celcius and has a mass of 522g. if 20400 j of energy is added to the rod by
A cyclotron particle accelerator (sometimes called an "atom smasher" in the popular press) is a device for accelerating charged particles, How fast are these protons moving when they hit the tumor
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