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The total weight of a wheelbarrow filled with gravel is 120 lb. If the wheel barrow is held on an 18° incline in the position shown, determine the magnitude and direction of
(a) The force exerted by the worker on each handle,
(b) The reaction at C.
a planar slab of thickness of 3.00 cm has a uniform volume charge density of 3.20 times 10-2 c m3. find the magnitude
Two people carry a heavy electric motor by placing it on a light board 2.90m long. One person lifts at one end with a force of 370N, What is the weight of the motor
define the potential difference between the plates.With what force must the player push the puck so that his force just equals the frictional force.
in a 10ft^2 room wiyh no window and no doors . The air in the room is 79% N(sub2) and 21% O(sub2). What is the weight of the air
The dissimilarity in electric potential among a thunder cloud and the ground is 2.38*108 V. Electrons move from the ground which is at a lower potential to the cloud which is at a higher potential. Decide the change in electric potential energy of on..
A carpenter on a space station has constructed a 30.0° ramp. A rocket moves past the space station with a relative speed of 0.720c in a direction parallel to side x. What does a person aboard the rocket measure for the angle of the ramp?
An uncharged solid metal sphere of radius R = 1.72 mm sits with its center at a distance of D = 63.1 cm from two point charges ± q = ± 4.9 × 10^–8 C which form a dipole. The two point charges are separated by a distance d = 8.04\mu m, as shown in the..
an atom of mass m1 m moves in the positive x direction with speed v1 v. it collides with and sticks to an atom of
A block lies on a horizontal frictionless surface and isattached to the free end of a spring, with a spring constant of 60N/m. What is the position of the block
A compound microscope has an objective lens of focal length 15.0 mm and an eyepiece that gives an angular magnification of 5.00 for a final image at infinity, What is the total magnification of the microscope
A 4.00-kg mass is placed at (4.00, 3.00) m and a 6.00-kg mass is placed at (3.00, ?4.00) m. What is the moment of inertia of this system of masses about the x-axis
A slingshot fires a pebble that is in the air for 5.30seconds. It lands 73.0m away from where it was initially shot. Determine the initial horizontal and vertical components of the velocity
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