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A 3.00-kg block starts from rest at the top of a 33.5° incline and slides 2.00 m down the incline in 1.80 s. (a) Find the acceleration of the block. m/s2 (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the frictional force acting on the block. N (d) Find the speed of the block after it has slid 2.00 m.
Evaluate the stability of of Na in the NaCl structure
The second-order dark fringe in a single-slit diffraction pattern is 1.40 mm from the center of the central maximum. calculate the wavelength of the incident light
The graph shows the component of a force acting on an object, Find the work done by the force over the specified intervals of displacement
A certain playground merry-go-round is essentially an 80-kg iron disk 2.0 m in radius. How long does it take the merry-go-round to complete a revolution now
A 78.0kg skydiver can be modeled as a rectangular "box" with dimensions 21.0cm × 41.0cm × 185cm. What is his terminal speed if he falls feet first
An automobile traveling at 40.0 km/h has tires of 50.0 cm diameter. How far does the car move during the braking
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. How much work is done on the hovercraft by the force during this time
Determine the amount by which the star's thermal radiation increases the entropy of the universe each second. Assume that the star is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not consider ther..
Three forces acting on an object are given by f1 = (?2.05i + 6.30j) N, f2 = (4.70i ? 1.95j) N, and f3 = (?42.5) N. What is the direction of the acceleration
A device used in radiation therapy for cancer contains 1.40 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
A very slow neutron with negligible kinetic energy is captured by a 11B (boron-11) nucleus, which ends up in its ground state. Calculate the wavelength of the photon given off
A spring with spring constant k = 430 N/m is initially compressed x = 1.60 cm. How much work is done by the spring during this process
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