1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
beks73 [17]
3 years ago
9

A blue train of mass 50 kg moves at 4 m/s toward a green train of 30 kg initially at rest. What is the initial momentum of the g

reen train?
Physics
1 answer:
soldi70 [24.7K]3 years ago
6 0

Answer:

I think answer is zero

bcz momentum=mass×velocity

body was initially at rest it means its velocity is zero

30×0=0

You might be interested in
Identify the factors that cause melting and thus the formation of magma. Choose one or more: A. decompression B. compression C.
nordsb [41]

Answer: C Heat Transfer, E Addition of Volatiles and A Decompression

Explanation:

- Decompression melting takes place within Earth when a body of rock is held at approximately the same temperature but the pressure is reduced.

8 0
3 years ago
Nonrenewable energy resources do not include which of the following?
Tems11 [23]
Hydrogen fuel cells is the answer
8 0
3 years ago
Read 2 more answers
Which of the following is located in the stratosphere? (10 points) Weather, The ozone layer, UV rays, Birds.
sergij07 [2.7K]
The O Zone Layer
Hope I am right
5 0
3 years ago
Read 2 more answers
Which of the following represents the greatest energy transition from a higher energy level to a lower one?
prohojiy [21]
You need to use Planck's law:
E = h·υ = (h·c)/λ

Without making all the calculations, a fraction is bigger than another when the denominator is smaller. Therefore you need to find the smallest wavelength (λ) which is 450nm.

You could also be helped by colors: in order of decreasing energy, you have blue - green - yellow - red.

In any case, the correct answer is a).
8 0
3 years ago
The breaking in (blank) bonds in food releases energy for your body to use
kicyunya [14]

Answer:

The breaking in <em>molecular</em> bonds in food releases energy for your body to use.

5 0
2 years ago
Other questions:
  • When the height of the cylinder increased by a factor of 5from 100 m to 500 m, what happened to the cylinder's
    14·1 answer
  • When a pair of identical resistors are con- nected in series, the
    12·1 answer
  • (a) Determine the required delta-v, Ave, to the nearest m/s, to reach a circular 500 km altitude equatorial prograde (eastward)
    5·1 answer
  • Convert the following to scientific notation: 45,700. A. 4.57 × 103 B. 4.57 × 104 C. 4.57 × 10-3 D. 4.57 × 10-4
    15·1 answer
  • A 144-g baseball moving 26 m/s strikes a stationary 5.25-kg brick resting on small rollers so it moves without significant frict
    5·1 answer
  • Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. The y-velocity is determined
    13·1 answer
  • Question 15 When moving oxidation numbers down as subscripts in an ionic bond, do you include the charge (+/-)?
    13·1 answer
  • One type of atomic particle that is found in the nucleus does not contribute to
    8·1 answer
  • Number these from least (1) to most (5) mass ?
    6·2 answers
  • The transfer of heat by the movement of a fluid is called: Think about it: Imagine a pocket of air over the land (“land air”), a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!