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A man pulls a 18.0-kg luggage up a ramp at angle 34.0° by a force F→ of magnitude 161 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.250. The luggage travels 3.90 m along the ramp.
a- How much work is done by F→on the luggage.
b- How much work is done by the gravitational force on the luggage
c- Calculate the work done on the luggage by the normal force
d- Calculate the work done on the luggage by the friction force.
e- Calculate the total work done on the luggage.
f- If the speed of the luggage is zero at the bottom of the ramp, what is its speed after it has traveled 3.90 m along the ramp?
There is a +10 nC charge inside a cube of size 5 centimeter. Find what additional charge must be located into the cube in order to achieve total flux 100 Nm2/C in the cube
A 515- turn circular loop coil with a diameter of 16.6 cm isinitially aligned so that its plane is perpendicular to the Earth'smagnetic field. In 2.04 ms the coil is rotated 90.0o sothat its plane is parallel to the Earth's magnetic field.
For this discussion, identify two or three factors that are most likely to create dramatic turns in their future strategy. How can the organizations prepare today for what might happen in three years?
A 91-kg man’s thighbone has a relaxed length of 0.50 m, across-sectional area of 7.0 x 10^–4 m^2, and a Young’s modulus of 1.1 x10^10 N/m^2. By how much does the thighbone compress when the manis standing on both feet?
The cable pulls horizontally on the box, and a 50.30 bag of gravel rests on top of the box. The coefficients of friction between the box and roof are shown. The system is not moving. Find out the friction force on the bag of gravel.
A ?ghter plane ?ying at constant speed 420 m/s and constant altitude 10000 m makes a turn of curvature radius 2800 m. On the ground, the plane's pilot weighs (62 kg)(9.8 m/s2) = 607.6 N. W
A 30.0-kg gun is resting on a frictionless surface. The gun fires a 50.0-g bullet with a muzzle velocity of 310.0 m/s. Compute the moment a of the bullet and the gun after the gun is fired.
(a) How close to the right-hand edge of the plank can the painter walk before tipping the plank and spilling the paint? (b) How close to the left-hand edge can the same painter walk before causing the plank to tip?
Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then what is the acceleration and what is the distance that the sled travels?
Two long, parallel conductors carry currents I1 = 3.00 A and I2 = 2.50 A, both directed into the plane of the computer screen. Determine the magnitude and direction of the resultant magnetic field at P.
Body A in the figure weighs 122 N, and body B weighs 33.5 N. The coefficients of friction between A and the incline are, What is the acceleration of A if A is initially at rest
A solid cylinder (I=0.5MR^2) rolls without slipping 30 m down an incline. If thetha = 30 degrees, fidn the velocity of the its center of mass at the bottom of the incline.
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