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A hiker starts at his camp and moves the following distances while exploring his surroundings: 55.0 m north, 2.75x10^2 m east, 105 m at an angle 30.0° north of east, and 1.50x10^2 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?
In a plane radio wave the maximum value of the electric field component is 5.17 V/m. Calculate the maximum value of the magnetic field component
Seat belts and air bags save lives by reducing the forces exerted on the driver, A 58kg person is in a head-on collision. The car's speed at impact is 13m/s. Estimate the net force on the person if he or she is wearing a seat belt and if the air ..
A skier starts from rest at the top of a hill that is inclined at 10.5? with the horizontal. The hillside is 191 m long, and the coefficient of friction between snow and skis is 0.0677. At the bottom of the hill, the snow is level and the coef..
Two long parallel wires carry currents of 3.85 A and 4.31 A. The magnitude of the force per unit lengh acting on each wire is 3.77 Ã- 10-5 N/m
In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 45 N to the input piston, which has a radius r1. find the force that the output plunger applies to the car
Vector has a magnitude of 7.20 units and makes an angle of 39.5° counter-clockwise from positive x-axis. Vector has a magnitude of 8.00 units and is directed along the negative x-axis.
A 10.00 kg grocery is pushed 12.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. a.) What work is done on the cart? b.)If all frictional forces are neglected, and the cart starts form rest, what is the grocery cart..
The acceleration of gravity is 9.81 m/s^2. Assuming that air resistance is simply a constant 96 N force on the person during the fall, identify the person's velocity just before hitting the net. Answer in units of m/s.
A sample of a gas occupies 5.25 m^3 at an absolute pressure of 1.00atm & temp of 20 degrees C: what is the number of moles in the gass sample
Consider a 18 micro-farad and a 82 micro-farad capacitor that are connected in parallel. How much energy E (in J) does the battery transfer to the capacitors
What was the velocity of the bullet just before it struck the wooden block? The length of the string is 2 meters.
A very light rigid rod with a length of 0.500 m extends straight out from one end of a meter stick. The stick is suspended from a pivot at the far end of the rod and is set into oscillation.
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