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A steel ball of mass 15.0g is fired from the small canon onto a wooden plank of mass 350g that is placed horizontal to the ground.The wooden plank slides to the distance of 7.00m after collision with ball. Find the velocity of the ball before impact with the plank considering the value of coefficient of friction as 0.5.
A 27 pound meteorite struck a car, leaving a dent 20 cm deep in the trunk. what was the magnitude of its deceleration, assuming it to be constant
Driving home from school one day you spot a ball rolling out into the street. You brake for 1.30 s, slowing your 840 kg car from 16.0 m/s to 9.50 m/s. How far did you travel while braking
Three capacitors are connected in series as shown in the figure. The capacitances are C1 = 7.3 μF, and C2 = 9.4 μF, C3 is unknown, and the charge stored in each capacitor is Q = 9.5 μC. Express the capacitance C of a capacitor in terms of charge Q ..
A thin 12 cm long solenoid has a total of 490 turns of wire and carries a current of 1.9 A. find the magnitude of the field inside near the center.
A positively charged particle of mass 6.80 10-8 kg is traveling due east with a speed of 80 m/s and enters a 0.31 T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.00 10-3 s, at which time it leaves the fi..
A catapult on a cliff launches a large round rock towards a ship on the ocean
A transformer has 330 primary turns and 1340 secondary turns. The input voltage is 120 V and the output current is 15.0 A. What are the output voltage and input current
Orange light (vacuum= 611 nm) shines on a soap film (n = 1.33) that has air on either side of it. The light strikes the film perpendicularly. What is the minimum thickness of the film for which constructive interference reasons it to look bright in r..
If the proton is fired at a speed of 3.0×107m/s , what is its closest approach to the surface of the nucleus? Assume the nucleus remains at rest
A solenoid that is 93.2 cm long has a radius of 2.71 cm and a winding of 1150 turns; Calculate the magnitude of the magnetic field inside the solenoid
The force vector A has a magnitude of 98.0 newtons (N) and points due east. The force vector B has a magnitude of 111 N and points 71.1 ° north of east. Find the (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle with r..
You are trying to overhear a juicy conversation, but from your distance of 24.0m , it sounds like only an average whisper of 40.0dB. How close should you come
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