4. A snowball is thrown with a speed of 42.0 km/h, giving it momentum with a magnitude of 2.00 Ns. The mass of the snowball, in grams, is Answer to 3 significant digits. g. (Record your answer in the numerical-response section below.) Your answer:
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- A0.02-kg bullet is fired into a stationary block of wood af mass of 4,76 kg. The relative speed of the bullet with respect to the wood is zero after collision (The bullet becomes embedded in the block of wood). What is the speed of the bullet-plus-wood cambination immediately after collision it the speed of the bullet before collision is 467 m/s? Express your answer in two decimal places and with units of m/s.32)A2 kg object moving at 3 m/s collides with a 4 kg object that is stationary. If the collision is perfectly inelastic, what is the speed of the 2 kg object after the collision? and how much is KE lost?
- The following question concerns a collision in outer space, far enough from any planets so that the external forces can be considered as negligible. An unmanned spacecraft, having mass 1,500,000 kg and speed 25,000 km/hr collides with a small meteor, having mass 3,000 kg and speed 2,100 km/hr, in the Kuiper belt. a. Prior to the collision, what are the total kinetic energy and total momentum? b. Assuming a head-on collision, in which the meteor becomes lodged into the spacecraft’s body and the two objects move off together, what are the total kinetic energy and momentum after the collision? c. If instead of getting lodged into the spacecraft, the meteor bounced off, would the change in the space craft’s momentum be larger or smaller, or is there not enough information to tell? Explain.The train car on the left with mass m1 is moving with speed V1i=24.0 m/s when it collides with a stationary car with mass m2. The two stick together and move with velocity V.a. Write initial momentum of the system by using symbols only?b. Write final momentum of the system by using symbols only? c. Use momentum conservation and solve for unknown v by using symbols? d. Calculate V if m1=m2?e. Show that the collision is inelastic?A. В. C. D. 3 kg 3 kg v= 5 m/s 3 kg 3 kg v = 0 m/s v= 2 m/s Above shows an object at different positions. v=-4 m/s Calculate the object's momentum at position A. Round to the nearest whole number. DO NOT include units Point a [A]
- As shown on the right two identical objects have the same mass. They are moving with the same speed but one is going due North and the other is going due East. Which of the following statements is completely correct? North a. East m m V Select one: They both have the same kinetic energies and the same momentum. b. They have different kinetic energies and they have different momentum. OC. They have the same kinetic energies, but they have different momentum. Od. They have different kinetic energies, but they have the same momentum.microblology textb. PHY166_onlıne Jab. Pinterest Word sdev E Reading li Constants An atomic nucleus at rest decays radioactively into an alpha particle and a different nucleus. Part A What will be the speed of this recoiling nucleus if the speed of the alpha particle is 2.2x105 m/s ? Assume the recoiling nucleus has a mass 57 times greater than that of the alpha particle. Express your answer to two significant figures and include the appropriate units. HÁ Vnucleus = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide Feedback Next > P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. I Terms of Use | Privacy Policy | Permisstons | Contact Us | V0 3:44 acerQUESTION 4 Problem One newly discovered light particle has a mass of m and property q. Suppose it moves within the vicinity of an extremely heavy (fixed in place) particle with a property Q and mass M. When the light particle is xi distance from the heavy particle, it is moving directly away from the heavy particle with a speed of vi. a) What is the lighter particle's speed when it is xf away from the heavy particle? Am¡m2 Consider a new expression for gravitation potential energy as: PEaray = - where A is a constant, m, and m, are the masses of the r two objects, and r is the distance between them. Moreover, the new particle has an additional interaction with the heavy particle through the following force expression 1 Fnew = qQ 4πεο r2 where En is a constant that is read as epsilon naught, q and Q are their new properties, r is the distance between the new particle and the heavy particle. Solution: We may solve this using two approaches. One involves the Newton's Laws and the other…
- A 1100 kg car travelling south at 8 m/s collides with a 1300 kg car travelling as 10 m/s [N] during an exciting demolition derby. a) If they become coupled together in the collision, what is their velocity immediately after impact? b) After the collision, they slide for 10m before coming to a stop. How much time did it take them to stop?b) A ball with mass, M moves to the right with speed, V. It collides head-on with another ball of mass 2M moving with speed v in the opposite direction. Both balls stick together after the collision. State TRUE or FALSE for each statements below. i. Both balls have the same momentum before collision. ii. The total kinetic energy is conserved in this collision.Which of the following statements is/are true? When a ball is thrown upward in air, its momentum and mechanical energy is conserved (ignore air resistance). II. Two blocks of mass 2.0 kg and 4.0 kg are pressed together, compressing a light spring between them. The spring, which has negligible mass, is not fastened to either block. When they are released simultaneously, they both moved freely on a horizontal smooth surface. The block of mass 2.0 kg will have more kinetic energy than the other block of mass 4.0 kg. III. When you ride a bcycle, the direction of the angular velocity of the wheels is to your left IV. A small light ball of mass m are moving to the right with a velocity v and collides with a large heavy ball of mass 100m. After the collision, the small ball bounces back to the left and the large ball moves very slowly to the right. During this collision, the small ball experiences the greater magnitude impulse. I. Only I, II and IV Only II, III, and IV Only Il and IV Only I…