Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q1. a rifle recoils while firing a bullet. The speed of the rifle’s recoil is small becauseA. rifle has much more mass than the bulletB. force against the rifle is smaller than against the bulletC. momentum of the rifle is smallerD. momentum is mainly concentrated in the bulletQ2. padded dashboards in cars are safer in an accident that non-padded ones because of occupant hitting the dash hasA. increased time of impactB. decreased impulseC. decreased time of impactD. increased momentumQ3. A 4 kg ball has momentum of 12kg m/s. what is ball’s speed?A. 4m/sB. 3 m/sC. 12 m/sD. 48 m/sE. none of theseQ4. two billiard balls having the same mass and speed roll toward each other. What is their combined momentum after they meet?A. 0B. half the sum of their original momentumsC. twice the sum of their original momentumsD. impossible to determine without additional informationQ5. an astronaut, floating alone in outer space, throws a baseball. If the ball floats away at a speed of 20 meters per second, the astronaut willA. move in the opposite direction, but at a lower speedB. move in the opposite direction at a speed of 20 m/sC. move in the opposite direction but at a higher speedD. not move as stated in any of a the above choices
A submarine dives 90.0 m at an angle of 8.0° below the horizontal. What are the horizontal and vertical components of submarine's displacement? (Imagine that upward and the direction of the submarine's horizontal motion is positive.)
You are to gracefully crawl in the tube and sit calmly in seat without holding on to anything. The cannon will then be raised to an angle such that your speed through the air at your highest point is 10 ft/sec.
Two metal plates are held together by two steel rivets, each of diameter 0.24cm and length 1.2cm.How much force has to be applied parallel to the plates to shear off both rivets.
Estimate mean and maximum velocities for a liquid
What are angles of refraction
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 76.0 rev/min in 3.50 s.
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
A car travelling at 25.0 m/s runs out of gas while travelling up a 33.0 degree slope. How far up the hill would it coast before starting to roll back down.
Two bicycle tires are set rolling with the equivalent initial speed of 5.0 m/s along a long, straight road, and distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {rm psi} and goes the dist..
Define the carrier power, total power and sideband power in the AM signal.
What is used up electric potential energy of charge carriers
A father (m = 90 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast is the father moving.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd