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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 machinist starts with three identical square plates but cuts one corner from one of them, two corners from the second, and three corners from the third. Rank the 3 plates according to the x coordinate of their center of mass, from smallest to large..
A 1,000-W motor powers a hoist used to lift cars at a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
Three point charges, -5.85*10-9 C, -9.20*10-9 C, and +7.20*10-9 C, are fixed at different positionson a circle. The total electric potential at the center of thecircle is -2150 V. What is the radius of the circle?
A skier of mass 85.0 kilogram is pulled up a snow-covered slope at a constant speed by a tow rope that is parallel to the ground. Find what is the tension in the tow rope
A laser beam produces light of wavelength 632.8 nm in vacuum. what is the index of refraction of the syrup solution
A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
A machine part rotates at an angular speed of 0.48 rad/s; its speed is then increased to 2.8 rad/s at the angular acceleration of 0.61 rad/s2.
An automobile traveling at 11.0 along a straight, level road accelerates to 72.0 in 5.10. What is the magnitude of the auto's average acceleration
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. How much time does it take for the particles to collide
How would you work the problem if the net electric field produced at the center of the circle made an angle of 29.3 degrees with the vertical axis, measured counter clockwise.
A woman walks for 4 minute directly north with an average velocity of 6km/h; then she walks eastward at 4 km/h for 10 minute. Find her average speed for the trip
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 17 m/s at an angle 35 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground.
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