For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of mass 1000 kg. The truck then keeps moving and pushes the car along with it.
If there are no other forces acting on this system, which best describes the results of the collision?
The collision is perfectly elastic.
Kinetic energy stays the same.
The momentum after the collision is greater than the momentum before the collision.
The speed of the combined vehicles is less than the initial speed of the truck.
Answers: 3
Physics, 21.06.2019 13:00
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.
Answers: 1
Physics, 21.06.2019 22:30
What is the earliest point in the universe that we can observe? why can’t we see back further than this?
Answers: 2
Physics, 22.06.2019 03:00
Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.
Answers: 1
Physics, 22.06.2019 12:00
What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?
Answers: 1
For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of...
History, 24.09.2020 02:01
French, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Geography, 24.09.2020 02:01
Biology, 24.09.2020 02:01
History, 24.09.2020 02:01
Medicine, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
History, 24.09.2020 02:01