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Two forces are applied to a tree stump to pull it out of the ground. Force (Fa) has a magnitude of 2240 newtons and points 34.0 degree south of east, while force (Fb) has a magnitude of 3160 newtons and points due south. Using the component method, find the magnitude and direction of the resultant Fa + Fb that is applied to the stump. Specify the direction with respect to due east.
a helicopter flies over the arctic ice pack at a constant altitude towing an airborne 140-kg laser sensor that measures
If instead the second disk is set spinning at 580 rpm in the direction opposite the first disk's rotation, what is the angular speed after coupling
At time t = 0, a projectile is launched from ground level. At t = 2.00 s, it is displaced d = 56 m horizontally, what is its horizontal displacement D from the launch point
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 80 kg. A person pushes on the outer edge of one section with a force of F = 75 N that is directed perpendicular to the section. Find out ..
A person of mass 80.0kg stands at the center of a rotating merry-go-round platform of radius 2.50m and moment of inertia 910kg*m^2. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
A proton with a speed of 2.0 x 106 m/s is shot into aregion between two plates that are separated by a distance of 0.15m. As the drawing shows, a magnetic field exists between the plates, and it is perpendicular to the velocity of the proton.
A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal. Determine the work done by the force of gravity
A 0.320 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. (a) What is the mass of the second ball? kg (b) What fraction of the original k..
A diver springs upward from a board that is three meters above thewater. At the instant she contacts the water her speed is9.00 m/s and her body makes an angleof 75.0° with respect to thehorizontal surface of the water. Determine her initial velocity..
PRACTICE IT Use the worked example above to help you solve this problem. A proton is released from rest at x = ?2.00 cm in a constant electric field with magnitude 1.50 103 N/C pointing in the positive x-direction. (a) Assuming an initial speed of..
My car has rear defrosters that are made of 13 wires embedded into the rear window. They can melt a thin layer of ice, What is the cross-sectional area of each wire
The electric potential is given by (50 V/m7)(xz6 + x3y4) in the region of space that includes the point (x,y,z) = (-2,7,-3) m
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