Explanation please Two disks of radius r are fixed at a distance D apart on a...
A bullet is shot through two cardboard disks attached a distance D apart to a shaft turning with a rotational period T, as shown. Derive a formula for the bullet speed u in terms of D, T, and a measured angle e between the position of the hole in the first disk and that of the hole in the second. If required, use r, not its numeric equivalent. Both of the holes lie at the same radial distance from the shaft....
The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a distance of d = 0.756 m, and rotating with an angular speed of 86.1 rad/s. The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is = 0.177 rad. From these data, determine the speed of the bullet....
Two disks of diameter d are spaced a distance r apart to form a parallel-plate capacitor. Here assume d >> r. The electric field between the disks has a magnitude of E. What is the voltage across the capacitor? How much charge is on each disk?
please i need help i tried to solve these but they came out wrong 001 10.0 points A car accelerates uniformly from rest and reaches a speed of 21 m/s in 11.5 s. The diameter of a tire is 73 cm Find the number of revolutions the tire makes during this motion, assuming no slip- ping. nswer in units of rev 006 10.0 points The speed of a moving bullet can be deter- mined by allowing the bullet to pass...
please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! Review A bullet is shot through two cardboard disks attached a distance D apart to a shaft turning with a rotational period T as shown. Derive...
A rod rotates in a horizontal plane with angular speed on into the page) the instant it is struck by a bullet travelling as shown. The bullet passes through the end of the rod, leaving a hole in the rod, and continues in the same direction. a) Give the equation needed to find the angular velocity of the rod just after the collision (leave it in terms of the symbols given below for part a). b) (You should be able...
Problem 14.47) Disks A, B, C, and D can ślide freely on a frictionless horizontal surface. Disks B, C, and D are connected by light rods and are at rest in the position shown when disk B is struck squarely by disk A which is moving to the right with a velocity vo 12 m/s. The masses of the disks are m,-m,-mc - 7.5 kg, and m 15 kg. Knowing that after impact disks A and B are bound togetherV)...
both of them please 13) Two flat circular plates of radius R are a distance d apart. The bottom plate has a uniform charge +Q and the top plate has a uniform charge -Q. R What is the electric field on the top surface of the bottom plate? R 14) For the plates described in question 13, what is the total electric potential at the bottom surface of the top plate? 13) R = 0.18 m, d = 0.075 m,...
Review Learning Goal: To practice Problem-Solving Strategy 4.1 for projectile motion problems. A rock thrown with speed 12.0 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s for the free-fall acceleration. Find the height y, from which the rock was launched. Express your answer in meters to three significant figures. View Available Hint(s) Review Peregrine...
1. Five objects of mass m move at velocity V at a distance r from an axis of rotation perpendicular axis for each to the page through point A, as shown below. Calculate the angular momentum L about that case (L is positive if it is out of the page) a. A. d. A. e. 2. A puck on a frictionless air hockey table has a mass of 5.0 g and is attached to a cord passing througha hole in...