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A bullet is fired from a rifle that is held 1.69 m above the ground in a horizontal position. The initial speed of the bullet is 1116 m/s. Calculate the time it takes for the bullet to strike the ground.
A projectile is launched from the top of a cliff above level ground. At launch the projectile is 35 meters above the base of the cliff and has the velocity of 50 meters per second at an angle 37° with horizontal. Air resistance is negligible.
A rectangular sample of a metal is 3.5 cm wide and 475 µm thick. When it carries a 42 A current and is placed in a 0.8 T magnetic field it produces a 6.5 µV Hall emf, Determine the Hall field in the conductor
A ball is thrown from the top of a building upward at an angle of 39degrees to the horizontal and with an initial speed of 24m/s. The ball is thrown at a height of 57 m above the ground and hits the ground 98.55 m from the base of the building. Wh..
A resonant circuit using a 220 nF capacitor is to resonate at 18.0 kHz. The inductor in the circuit is to be a solenoid, How many loops will the inductor contain?
A rubber balloon filled with air is rubbed against a wool sweater and acquires a negative charge. The balloon is placed up against a flat wall and released. The balloon stays stuck to the wall. How is this possible if the wall is not charged in an..
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the speed at which the rock is launched
Throughout three hours one winter afternoon, when outside temperature was 9° C, a house heated by electricity was kept at 21° C with the expenditure of 46kwh (kilowatt•hours) of electric energy.
A 4µF and 10uF capacitor are connected in series across a potential difference of 40 V. Find the charge on each capaacitor and the potential difference across each
Evaluate with the strength of the earth's gravity at its surface, how much weaker is gravity at a distance of 10 earth's center.
A child playing tee ball hits a stationary 60g ball with a 220g bat swinging initially at 4.0m/s, What's the bat's post-impact speed
What are magnitude and direction of net electrostatic force
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