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A hiker starts at his camp and moves the following distances while exploring his surroundings: 80.0 m north, 2.20 102 m east, 105 m at an angle 30.0° north of east, and 1.50 102 m south.
(a) Find his resultant displacement from camp. (Take east as the positive x-direction and north as the positive y-direction.) magnitude
______m direction ______ ° north of east
(b) Would changes in the order in which the hiker makes the given displacements alter his final position? No Explain.
A high-speed lifting mechanism supports a 875-kg object with a steel cable that is 33.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
A horizontal force of magnitude 46.1 N pushes a block of mass 3.64 kg across a floor where the coefficient of kinetic friction is 0.554. find the increase in the kinetic energy of the block
A beam of light in air strikes a piece of glas (n = 1.59), Find the angle of incidence if the angle of reflection is twice the angle of refractio
A child looks at his reflection in a spherical Christmas tree ornament 8cm in diameter, and sees his image reduced by half. How long is his face from the ornament.
The loaded cab of an elevator has a mass of 3.7 x 10^3 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab.
A woman walks 290 m in the direction 37° east of north, then 177 m directly east. Find (a) the magnitude and (b) the angle (from due east) of her final displacement from the starting point. (c) Find the distance she walks.
An airplane accelerates down a runway at 3.20 m/s2, finally lifts off the ground Determine the distance traveled before takeoff?
An electric motor turns a flywheel by a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel. The flywheel is a solid disk with a mass of 50.0kg and a diameter of 1.00m.
Three deer, A, B, and C, are grazing in a field. Deer B located 64 m from dear A at an angle of 53° north of west, What is the distance between deer A and C
Three positive charges are fixed in place. Q 1= +4.0 nC and is located at (0,2), Q2= +1.0 nC and is located at (0,-1), What is the electric potential at the origin
A 250 g block of wood hangs from a light string 0.78 m long. The block is shot with a bullet of mass 4.2 g, what was the velocity of the bullet just before it hit the block
Charges of 3.00 nC, -2.00 nC, -7.00 nC, and 1.00 nC are contained inside a rectangular box with length 1.00 m, What is the electric flux through the surface of the box
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