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A rock is thrown down a well that is 8.85 meter deep. The splash is heard 1.20 sec later. Evaluate how deep is the well?
A small vertical mirror hangs on the wall, 1.20 m above the floor. What was the change in the Sun's angle of elevation between your two observations
What is the smallest thickness of a soap film (n = 1.33) that would appear black if illuminated with 450 -nm light? suppose there is air on both sides of the soap film.
A blimp used for aerial camera views of sporting events holds 200,000 ft3 of helium. How much does the helium weigh
An alpha particle (m = 6.7 ´ 10-27 kg, q = +3.2 ´ 10-19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle throughout this motion. Find out an electric potential difference V..
A hotel elevator ascends 140 {rm m} with a maximum speed of 4.59 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.93 {rm m/s^2}. How long does it take to make complete trip from bottom to top.
the west antarctic ice sheets some 0.83 million km2 and only 6 of the total antarctic ice surface have an average
A rod of length L carries a uniform linear charge density of 5 nC/m. find the electric field due to this rod at a distance of 20cm
In a television tube, electrons travel down the tube and strike the fluorescent material at the end of the tube. Their impact with this material causes light to be emitted, How long does the acceleration take
q1. a 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the
Starting from rest, a 5.50-kg block slides 2.00 m down a rough 30.0° incline. Determine the work done by the normal force
Two identical speakers are driven by the same oscillator @ 200Hz. They are located on a vertical pole & 4.00 m apart. A man walks straight towards the lower speaker perpendicular to the pole.
Use graphical techniques to find out the direction of the dog’s resultant displacement vector. Give the direction of the resultant displacement in degrees (out of 360).
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