A horizontal spring is compressed a distance of 0.1 meters by a block of mass 10 kg. Assume that there is no friction between the block and the floor. If the spring has a spring constant of 800 N/m then how fast (magnitude of the velocity) is the block launched after leaving the spring? Wr your answer down in units of meters per second (m/s), but only write down the number part of your answer.
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- A block having a mass of 1.0 kg is given an initial velocity v= 6 m/s to the right and collides with a spring whose mass is negligible and whose force constant is k =100 N/m . Assuming the surface to be frictionless, e the maximum compression of the spring after the collision m 6 m 5 m NoneA 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the velocities shown, calculate the mass of the white ball, Ignore friction and air resistance. 0 m/s 4 m/s 1.4 m/s 5.7 m/sA toy rocket operates by having a spring-loaded tube which ejects a small model rocket when released. The spring inside has a spring constant k = 625N/m, the rocket has a mass of 0.100 kg, and the maximum compression of the spring is 0.18 m. Consider the system of the rocket, spring, and the earth. Consider the interval of time between t1, when the rocket is released from the point of maximum spring compression, and t2, the moment when the spring is fully released and the rocket leaves the launcher. List below the types of energy that are changing during this interval and whether the changes are positive or negative. Please explain how you know.
- ФЫ В А ПРО В А ПРО ЛДЗАПРОЛДЖЭ ЯЧСМИТНЧСМИТЬБНСМИТЬБЮ SOLVE STEP BY STEP IN DIGITAL FORMAT 32.- A bowling ball of mass 7Kg collides head-on with a pin of 2.00Kg. The pine tree falls forward with a speed of 3.00 m/s. If the ball continues forward with a speed of 1.8m/s, what was the initial speed of the ball? Ignore the rotation of the ball. 33.- Two particles collide head-on in a perfectly inelastic manner as illustrated in the figure. Suppose that m_1=0.5 kg and m_2=0.25 kg and v_1=4 (m/s) and v_2=-3 (m/s); a) find the velocity of the composite particle after the collision; b) How much kinetic energy is lost in the collision? ИЦУКЕНГШУКЕНТ ШЩЗЕНІ Шщ3xbA 66.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 7.5 m/s. The goal of this problem is to find the maximum height she attains and her speed at half maximum height. (a) What are the interacting objects and how do they interact? This answer has not been graded yet. (b) Select the height at which the athlete's speed is 7.5 m/s as y = 0. What is her kinetic energy at this point? JWhat is the gravitational potential energy associated with the athlete? J(c) What is her kinetic energy at maximum height? JWhat is the gravitational potential energy associated with the athlete? J(d) Write a general equation for energy conservation in this case and solve for the maximum height. Substitute and obtain a numerical answer. m(e) Write the general equation for energy conservation and solve for the velocity at half the maximum height. Substitute and obtain a numerical answer. m/sA 2.00 kg ball falls off a 200.00 cm high wall. If the time during the collision is 0.050 seconds, what is the force of impact caused by the ground on the ball? USE SIGNIFICANT FIGURES in the answer!
- ФЫ В А ПРО В А П Р О Л ДЗАПРОЛДЖЭ ЯЧСМИТНЧСМИТЬБНСМИТЬБЮ SOLVE STEP BY STEP IN DIGITAL FORMAT Two identical particles have the following speeds before the collision v_(0_A )=-20r m/s and v_(0_B )=20j m/s. They collide at the origin of coordinates in such a way that after the collision the speed of the ball A is v_A-10 m/s. What is the magnitude and direction of ball B after the collision? What is the torque around the origin in a particle located at x = 1.5m, y = -2 m, z=1.6 m, and due te a force fuerza F = 3.51-2.4j+ 4.3k [N? Express the result in unit vector notation, ИЦУКЕНГ ШУКЕНІ ШщЗЕНТ ШщзхьA rifle bullet with a mass of 10 g and moving with the speed of 300 m/s strikes and embeds itself in a block with a mass of 990 g that rests on a frictionless, horizontal surface and is attached to a coil spring. If the force constant of the spring is 300 N/m, a) calculate the common final velocity of block and bullet after the collision (in m/s). Enter the number up to ONE decimal place b) what is the maximum compression (in meters) of the spring? Enter the number up to THREE decimal places MTwo blocks of masses m1 = 1.60 kg and m2 = 2.10 kg are placed on a horizontal frictionless surface and a compressed spring of force constant k = 285 N/m is placed between them. Neglect the mass of the spring. The spring is not attached to either block and is compressed a distance of 9.50 cm. If the blocks are released from rest, find the final velocity of each block.