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A ball on the end of a string is whirled around in a horizontal circle of radius 0.300m. The plane of the circle is 1.19m above the ground. The string breaks and the ball lands 1.91m (horizontally) away from the point on the ground directly beneath the ball's location when the string breaks. Calculate the radial acceleration of the ball during its circular motion.
A 28 gram bullet strikes a 0.9 kilogram block attached to a fixed horizontal spring whose spring constant is 6.8 x 103 N/m, Evaluate the speed of the bullet before impact
What is the magnitude of the net force on the student.What is the magnitude of contact force on the student by the backpack.
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of the magnetic field
The acceleration of gravity is 9.81 m/s2 . Assuming that air resistance is simply a constant 93 N force on the person during the fall, evaluate the person’s velocity just before hitting the net.
Light of wavelength 5.0*10^-7 m in air is incident normally (perpendicular) on a doubled slit. The distance between the slit is 4.0*10^-4 m, Caculate the line density in slits/mm of the diffraction grating
Two capacitors are connected to a battery. The battery voltage is V = 70 V, Determine the total energy stored by the two capacitors
A speed skater moving across frictionless ice at 8.1 m/s hits a 5.6m wide patch of rough ice. What is her acceleration on the rough ice
Consider the Earth and a cloud layer 800 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
I am working on a project where we need to find an optimal transfer for a spacecraft from LEO to the L4 LaGrange point in the Earth-Moon system. In order to calculate the delta V for the arrival at the LaGrange point, we need to know the "veloci..
A car engine is initially rotating at 105 rad/s. It is then turned off and takes 3.40 second to come to a complete stop. Estimate what is the angular acceleration of the engine
The Kwik-Freez Appliance Co wants you to design a food freezer that will keep the freezing compartment at -5.00C and will operate in a room at 20.0C. The freezer is to make 5.80kg of ice at 0C, starting with water at 20.0C.
a 500 watt heater is used to heat water in a plastic bucket. assume that 90 of the heat produced by the heater goes
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