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A rifle is aimed horizontally toward the center of a target 0.10 kilometer away, but the bullet strikes 10 centimeter below the center.
(a) Find the time it takes for the bullet to strike the target.
(b) Find the velocity of the bullet just as it emerges from the rifle.
(c) Find the velocity of the bullet right before it hits the target.
(d) If a bullet that leaves the muzzle of a gun at 250 meter per second is to hit a target 100 meter away at the level of the muzzle, the gun must be aimed at a point above the target. Determine how far above the target is the point?
A person driving her car at 48 km/h approaches an intersection just as the traffic light turns yellow. The yellow light lasts only 2.0 s before turning to red, how far will she travel before stopping
A metal rod with a diameter of 2.30 cm and length of 1.10 m has one end immersed in ice at 32oF, what is the thermal conductivity of this metal and Identify the metal
The electric field intensity between two parallel plates separated by 25mm is 8000 N/C. How much work is done by the electric field in moving a -2uC charge from the negative plate to the positive plate?
A 710 N man stands in the middle of a frozen pond of radius 4.0 m. He is unable to get to the other side because of a lack of friction among his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward..
Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable attached to the glider. Obtain what average power must the winch supply
Coyote is on a rocket that has acceleration of 10m/s^2, initially at rest at the top of a flat, level cliff. A roadrunner traveling at a constant speed of 25mil/hr passes the coyote, How far ahead of the coyote is the roadrunner when the fuse ignit..
Discover minimum thickness of glass
when a solid cylindrical rod is connected across a fixed potential difference a current i flows through the rod.what
A car battery with a 12 V emf and an internal resistance of 0.040 is being charged with a current of 45 A. Find the potential difference V across its terminals
At this time it has reached a height of 420 metres above launch pad and attained an upward velocity of 50 ms-1. From this time on, the rocket has constant upward acceleration -10 ms-2 (due to the effect of gravity alone).
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. The electron has negligible initial speed and a final speed of 4.60 107 m/s. Find the voltage drop from cathode to anode.
two locomotives approach each other on parallel tracks. each has a speed of v 80 kmh with respect to the ground.if
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