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In the figure here, a solid brass ball of mass 0.306 g will roll smoothly along a loop-the-loop track when released from rest along the straight section. The circular loop has radius R = 0.18 m, and the ball has radius r << R.
(a) What is h if the ball is on the verge of leaving the track when it reaches the top of the loop?
(b) If the ball is released at height h = 4R, what is the magnitude of the horizontal force component acting on the ball at point Q?
After skidding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.8 m/s. Miranda runs after her at a velocity of +5.3 m/s and hops on the inner tube.
two capacitors c1 6.00 microf and c2 11.0 microf are connected in parallel and the resulting combination is connected
In a photoelectric effect experiment, visible radiation of energy 2.91 eV is incident upon a metal of work function 1.66 eV. find the maximum kinetic energy of the ejected photoelectrons
(A)What is the acceleration of gravity on the surface of the moon? (B) on the surface of Mars? The mass of Mars is 6.418 x10^23 kg and its radius is 3.38x10^6 m. Show work and formulas for credit
An airplane propeller is rotating at 1900 rpm (rev/min). compute the propeller's angular velocity in rad/s
Three resistors {R1 = 12.0 ?, R2 = 18.0 ?, and R3 = 36.0 ?} are connected in parallel, and in turn connected to a 70.0 V source with an internal resistance of 1.00 ?. calculate the terminal potential of the source
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How fast was it moving just after being hit
You are designing the section of a roller coaster ride shown in the figure. Previous sections of the ride give the train a speed of 14.3 m/s at the top of the incline, which is 36.7 m above the ground. obtain the minimum radius you can use for the ..
Two men decide to use their cars to pull a truck stuck in mud. What is the net forward force exerted on the truck in the direction it is headed
An airplane is flying horizontally with a constant velocity of 150 m/s at an altitude of 4700 m when it drops a package. How long does it take for the package to reach the ground
The expected and the actual rate of return on plan assets for 20X9 was 10%. There are not other components of Loch's pension expense. Illustrate what amount should Loch report in its December 31, 20X9 balance sheet as prepaid pension cost?
What is the difference in travel time for light that travels only through space to the moon and back and light that travels through the atmosphere and space?
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