18. Short Answer: A 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at rest. The two objects stick together. What is the velocity of the combined system just after the collision? 19. Short Answer: A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring?

18. Short Answer: A 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at rest. The two objects stick together. What is the velocity of the combined system just after the collision? 19. Short Answer: A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring?

Name: 17. Multiple Choice: A block of metal which weighs 60 newtons in air
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: 17. Multiple Choice: A block of metal which weighs 60 newtons in air and 40 newtons under water has adensity, in kilograms per meter cubed, of:w) 1000x) 3000y) 5000z) 700018. Short Answer: A 10 kilogram body initially moving with a velocity of 10 me

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Josh is driving his car home after going to work. However, he fell asleep while driving because of fatigue from working 12 hours. He accidentally hits another car. His initial velocity was 40.2 m/s and after 5.6 s at the moment of the crash, his velocity was 38.6 m/s. Compute for the following: a. Momentum before the collisionb. Momentum after the collisionc. Impulsed. Force
A 10 g bullet moving at 1,000 m/s goes through a 1.0 kg block. If the bullet goes through the block and comes out at a velocity of 711 m/s, determine the maximum height the block rises to. Use g = 10 N/kg.
An electron collides elastically with a stationary hydrogen atom. The mass of the hydrogen atom is 1800 times that of the electron. Assume that all motion, before and after the collision, occurs along the same straight line. Determine the ratio of the kinetic energy of the hydrogen atom after the collision to that of the electron before the collision? a. 0.0022 c. 0.0024 b. 0.0021 d. 0.0023
1. a. Starting from Newton's second law of motion, prove that impulse is equal to a change in momentum. b. A particle of mass m moves with a momentum of magnitude p. Show that the kinetic energy of the particle KE = i. =p²/2m
2: A 0.02-kg bullet is fired horizontally into a 8.98-kg wooden block initially at rest on a horizontal surface. The wooden block is connected by a massless spring with spring constant 100N/m. After impact, the block slides 10.0cm before coming to rest. If the coefficient of kinetic friction between block and surface is 0.20, what was the speed of the bullet immediately before impact? M www
A 12.0-g bullet is fired horizontally into a 114-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 82.0 cm, what was the speed of the bullet at impact with the block? m/s
A 12.0-g bullet is fired horizontally into a 116-g wooden block that is initially at rest on a frictionless horizontal surface a connected to a spring having spring constant 159 N/m. The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 72.0 cm, what was the speed of the bullet at impact with the block? m/s
A 0.0065 kg bullet is fired into a stationary concrete piece that weighs 3.0 kg. The bullet imbeds into the concrete. The combined speed of the bullet and concrete immediately after the collision is 0.400 m/s. What was the original speed of the bullet?
A 777.86 g rubber ball is dropped from a height of 20.5m and undergoes a perfectly elastic collision with the earth. a.) What is the earth's speed after the collision? Assume the earth was at rest before the collision. b.) How many years would it take the earth to move 1 mm at this speed?
2. A block of ice of mass 50.0 g slides along a frictionless, frozen lake at a speed of 0.30 m/s. It collides with a 100.0 g block of ice that is sliding in the same direction at 0.25 m/s. The two blocks stick together. a. Draw a diagram of the system before and after the collision. b. How fast are the two blocks moving after the collision? C. How much kinetic energy is lost?
4. In an elastic head-on collision, a 0.60 kg cart moving at 5.0 m/s [E] collides with a 0.80 kg cart moving at 2.0 m/s [W]. The collision is cushioned by a spring (k = 1,200 N/m). i. Determine the velocity of each cart after the collision. ii. Determine the maximum compression of the spring.
5. A 3000g crate of cakes travelling at 10ms^-1 collides with 15kg box of cans of diet coke travelling in the opposite direction at 5ms^-1 on a frictionless surface. The crates of cakes rebound at 4.5 ms^-1, at what velocity and what direction does the box of cans travel after the collision?