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Bowling balls are roughly the same size, but come in a variety of weights. Given its official circumference of roughly 27.4 inches, calculate the heaviest bowling ball that will float in a fluid of specific gravity 1.100.
the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
A 1500 kg car traveling at a speed of 20 m/s skids to a halt on wet concrete where kinetic friction= 0.20. How far are the skid marks.
A soccer ball is kicked with an initial speed of 9.8 m/s. After 0.200 s it is at its highest point. What was its initial direction of motion
A high-pass RC filter is connected to an AC source with a peak voltage of 18 V. The peak capacitor voltage is 5.27 V
A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.1 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.
A tennis ball has a velocity of 22 m/s and a mass of 58.7 g. After the ball hits a tennis racket, the velocity becomes twice that of the original speed and goes in the opposite direction. What is the force between the ball and the racket
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 810J/minute.
The nucleus 124 55 Cs has a half-life of 30.8 s and a molar mass of 124 g. What is the initial activity (decay rate) of the sample
The displacement of a wave traveling in the positivex-direction is y(x,t)=(3.5cm)cos(2.7x?92t), wherex is in m and t is in s, What is the wavelength of this wave
What is phase change as the light is reflected from the top
A block of mass 2.7 kg being released from rest on a 1m frictionless plane, inclined at an angle of 40 degree. The block sided down the inclined and struck second block mass of 3.7 kg. If the two blocks stick together, with what speed would they move..
A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
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