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A block of mass 2.50 kg is pushed 2.20 m along a frictionlesshorizontal table by a constant 16.0 N force directed 25.0 degrees below the horizontal.
a) Determine the work done by the applied force.b) Determine the work done by the normal force exerted by the table.c) Determine the work done by the force of gravityd) Determine the work done by the net force on the block.
A radio-controlled car increases its kinetic energy from 8 J to 10 J over a distance of 5 m. What was the average net force on the car during this interval
What is the smallest diameter spot the eye can produce on the retina if the pupil diameter is 4.50mm ? Assume light with a wavelength of = 510nm
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 25 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 155 m), the block swings ..
What additional experiment can help you decide between these two possibilities.
question 1 what is the resistance of 5.8 mi of copper wire with a diameter of 0.53 mm?question 2 a 75v- generator
A child goes down a playground slide with an acceleration of 1.20 m/s2. Compute the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 32.2° below the horizontal.
An experimentalist wishes to probe the nucleus which can be approximated as a hard sphere having a radius of 10^-13 cm. How large must the probe beam intesity be if the target consists of 10^10 nuclei
Two steel wires of the same length, one with radius r and the other with radius 2r, are connected together, end to end, and tied to a wall. How far does the point where the two wires meet move
Young’s double slit experiment is performed with blue-green light of wavelength 500 nm. The slits are 1.20 mm apart, and the viewing screen is 5.40 m from the slits. How far apart are two adjacent bright fringes? What is the angular separation of two..
questionthe michelson interferometer can be used to measure an index of refraction of a gas by placing the evacuated
The density of water is 1.0 x 10^3 kg/m3. Calculate the gauge pressure in the pipe at this location.
q1. a 9.05 kg projectile is fired vertically upward. air drag decreases the mechanical energy of the projectile-earth
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