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Q1. A hiker's trip consists of three segments. Path A is 8.0 km long heading 60degrees north of east. Path B is 7.0km long in a direction due east. Path C is 4.0 km long heading 315 degrees counter clockwise from east.
a) Graphically add the hiker's displacement in A, B, C
b) graphically add the hiker's displacement in C, B, A
Q2. A proton is initially at rest at a point where the potential is 461V. Sometime later the proton is at a point where the potential is 191V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy?
Find out the magnitude of the electric field at a point P on the y-axis 0.529 m from the origin. The value of the Coulomb constant is 8.99 × 109 N • m2/C2.
A ship has a mass of 40000 kg. its energy gives it an acceleration of 0.27 m/s while it travels a distance of 105 meters from rest. what force does the engine exert on the ship.
A 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were ..
Find an equation for the change in wavelength of a scattered photon by Compton effect.
A catcher stops a ball traveling at 28.0 m/s in a distance of 55.30 cm and feels a force of 313 N against his glove. What is the mass of the ball.
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor.
The famous horse & cart physics scenario is explained. This scenario is used to describe why many people have a common misconception about what Newton’s 3rd Law says & does not say.
The shaft shown below has a solid round cross-section & is supported by bearing at A & B. Find the location of maximum bending stress in the shaft.
What is the magnitude
What temperature change would reason a 0.20 % enhance in the volume of a quantity of water that was at first at 20 ^circ {rm C}.
An airplane is flying with a velocity of 95 at an angle of 19 above the horizontal. When the plane is a distance 111 m directly above a dog that is standing on level ground, suitcase drops out of luggage compartment.
Guess scale factor of the Universe
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