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A box rests on top of a flat bed truck. The box has a mass of m = 16.0 kg. The coefficient of static friction between the box and truck is ?s = 0.81 and the coefficient of kinetic friction between the box and truck is ?k = 0.63. * The truck accelerates from rest to vf = 19.0 m/s in t = 12.0 s (which is slow enough that the box will not slide). What is the acceleration of the box? m/s2 * In the previous situation, what is the frictional force the truck exerts on the box?
A time-dependent force, Fvecbold = (7.50i hat bold ? 4.05tj hat bold), How far is the object from its initial position when its speed is 15.0 m/s
How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 9.00 cm2
A young boy swings a yo-yo horizontally above his head at an angular acceleration of 0.32 rad/s^2. If the tangential acceleration of the yo-yo at the end of the string is 0.15 m/s^2, how long is string.
A girl jumps on bike and exerts torque of 25.0 N-m perpendicular to the pedal. Moment of inertia of bike wheel is I = 0.045kg-m^2. What is angular velocity of bike wheel at end of this time
An electric fan is running on HIGH. After fan has been running for 1.0 minutes, the LOW button is pushed. What was the initial angular speed of the fan in rev/sec
In order better to map the surface features of the Moon, Calculate the satellite's kinetic energy, gravitational potential energy, and total orbital energy
In a double-slit interference experiment, the wavelength is 477 nm, What is the linear distance between adjacent maxima on the screen
A 0.25 m segment of wire lies along the x-axis and carries a current of 4.7 A in the negative x direction. What is the force (magnitude and direction) on the segment of wire
Four answers required for this problem. A converging lens has a focal length on both sides of 24.0 cm. Is the image to the left or right of the lens
In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. Once the room gets spinning fast enough, What is the speed of a person "stuck" to the wall in (m/s)
A grinding wheel 0.45 in diam rotates at 2900. What is acceleration of a point on the edge of the grinding wheel.
A conducting sphere that carries a total charge of +11 µC is placed at the center of a conducting spherical shell that also carries a total charge of +11 µC, Determine the charge on the inner surface of the shell
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