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An object with a mass of 9 kg starts from rest on a horizontal surface with friction and the coefficient of the kinetic friction if 0.55. Two additional forces are applied to it. One force of 18 Newton's is applied straight downward and another force of 97 Newton's is applied in the +x direction, parallel to the surface. This force parallel to the surface is enough to overcome static friction and move the mass. After the mass has traveled 10 meters over this horizontal surface (the entire surface has friction), these two additional forces are not present any more and in encounters a frictionless quarter-circular tamp. It reaches the top of ramp ("side" of the circle) before it stops. What is the radius, in meters, of the quarter-circular ramp?
A package delivery service (we cannot say any names but their initials are F and E), has asked your help in designing a system to bring packages that have been sliding along delivery chutes before they get loaded onto the trucks. Find the speed of..
The current in the coil above is adjusted to produce a fieldstrength of 2.0 mTesla. The axis of the coil is horizontal andalong the east-west direction. Find the direction of the net field from both sources
Two 4.0 cm -diameter disks face each other, 1.5 mm apart. They are charged to +/- 13 nC. 1) What is the electric field strength between the disks?
Find the initial speed of the ball
In a simplified Bohr model of the hydrogen atom, an electron is assumed to be traveling in the n = 6 circular orbit of radius 1.90×10-9 m around a proton. Compute the speed of the electron in that orbit.
How much force pulling along the incline is needed to hold in place a 14.0 kg mass on an incline that makes an angle of 22.0 degrees with the horizontal
A double speed trap is set up on a freeway. One police cruiser is hidden behind a billboard, and another is some distance away under a bridge. How far apart are the two cruisers
A 1-m-tall barrel is closed on top except for a thin pipe extending 4.2m up from the top. What is the pressure on the bottom when water is added to fill the pipe to its top
A hockey puck is sliding across a frozen pond with an initial speed of 9.7 ms. It comes to rest after sliding a distance of 44.0 m. What is the coefficient of kinetic friction between puck and ice.
A car is traveling at 45m/s passes a tropper hidden behind a billboard. Two seconds after the speeding car passes the billboard the tropper set out from the billboard to catch it. If the trooper accelerates as a constant rate of 3 m/s2
A component with a 19 Ω resistor is rated for use at power levels not exceeding 11 W. How much current can safely flow throught the component
A sports car starts from rest on a circular track of radius 690 meter. The car's speed increases at the constant rate of 0.400 m/s2. Determine the speed of the sports car
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