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
saw5 [17]
3 years ago
15

A train travels 600 km in 4 hours. What is the speed of the train?

Physics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

150 km/h

Explanation:

I just took the test on edgenuity! Have a great day :)

You might be interested in
NEED HELP!!!! 11 POINTS!!!!
Anna007 [38]

Answer:

11

Explanation:

5 0
3 years ago
Read 2 more answers
Initially, a particle is moving at 5.25 m/s at an angle of 35.5° above the horizontal. Three seconds later, its velocity is 6.0
ivolga24 [154]

Answer:

 a =( -0.32 i ^ - 2,697 j ^)  m/s²

Explanation:

This problem is an exercise of movement in two dimensions, the best way to solve it is to decompose the terms and work each axis independently.

Break down the speeds in two moments

initial

  v₀ₓ = v₀ cos θ

  v₀ₓ = 5.25 cos 35.5

v₀ₓ = 4.27 m / s

   v_{oy} = v₀ sin θ

 v_{oy}= 5.25 sin35.5

v_{oy} = 3.05 m / s

Final

vₓ = 6.03 cos (-56.7)

vₓ = 3.31 m / s

v_{y} = v₀ sin θ

v_{y} = 6.03 sin (-56.7)

v_{y} = -5.04 m / s

Having the speeds and the time, we can use the definition of average acceleration that is the change of speed in the time order

    a = (v_{f} - v₀) /t

    aₓ = (3.31 -4.27)/3

    aₓ = -0.32 m/s²

    a_{y} = (-5.04-3.05)/3

   a_{y} =  -2.697 m/s²

6 0
3 years ago
To find the number of neutrons in an atom, you would subtract
Luda [366]
Atomic number is equal to the number of protons and electrons

Atomic mass - protons = neutrons

protons + neutrons = atomic mass

I hope this helps
3 0
3 years ago
When was the first airplane made?
expeople1 [14]
The first ariplanr was made December 17, 1903
3 0
3 years ago
Read 2 more answers
A piece of metal has attained a velocity of 107.8 m/sec after fallinf for 10 seconds what is its initial velocity
soldi70 [24.7K]

Answer:

7.8 m/s

Explanation:

Here object is falling with a gravitational acceleration there  for we can take acceleration = 10 m/ s² and its constant through out the motion there for we can use motion equation

V = U + at

V - Final velocity

U - Initial velocity

a - acceleration

t - time

V=U+at

107.8=U + 10×10

  = 7.8 m/s

4 0
3 years ago
Other questions:
  • In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. (a) How much wo
    11·1 answer
  • A trough is 16 ft long and its ends have the shape of isosceles triangles that are 4 ft across at the top and have a height of 1
    8·1 answer
  • Which action will cause the induced current to decrease or remain constant?
    6·1 answer
  • What’s the correct answer?
    12·1 answer
  • Where in the ocean are u likely to find animals that make there own light
    14·2 answers
  • g it as been suggested that solar powered space ships could get a boost from a laser either on earth or in orbit around earth. t
    8·1 answer
  • A Physics question regarding circuits and electricity.
    6·2 answers
  • A ticker timer 50dots per second. When a body is pulled by a tap through the timer, the distance between the third and fourth do
    12·1 answer
  • Uses of hydrometer in points​
    14·1 answer
  • During crystallisation the crystals separate out from the hot ________solution of a substance on cooling
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!