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
Sonja [21]
4 years ago
12

A freight train car has a mass of 2,000 kilograms and an acceleration of 1.8 m/s/s. ​What is the average force behind that train

car?
Physics
1 answer:
abruzzese [7]4 years ago
8 0

Answer:

F = 3600 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of force must be equal to the product of mass by acceleration.

ΣF = m*a

where:

F = force [N]

m = mass = 2000 [kg]

a = acceleration = 1.8 [m/s^2]

Now replacing:

F = 2000*1.8

F = 3600 [N]

You might be interested in
How would you find the total energy stored in the
likoan [24]

Answer:

The energy of the capacitors connected in parallel is 0.27 J

Given:

C = 2.0\micro F = 2.0\times 10^{- 6} F

C' = 4.0\micro F = 4.0\times 10^{- 6} F

Potential difference, V = 300 V

Solution:

Now, we know that the equivalent capacitance of the two parallel connected capacitors is given by:

C_{eq} = C + C' = 2.0 + 4.0 = 6.0\micro F = 6.0\times 10^{- 6} F

The energy of the capacitor, E is given by;

E = \frac{1}{2}C_{eq}V^{2}

E = \frac{1}{2}\times 6.0\times 10^{- 6}\times 300^{2} = 0.27 J

6 0
3 years ago
What crisis is occurring in California?
nlexa [21]
Hey there!

Option A

A climate crisis is occurring in California where sudden forest fires occur due to this .
3 0
2 years ago
It was a dark and stormy night, when suddenly you saw a flash of lightning. Three-and-a-half seconds later you heard the thunder
Gekata [30.6K]
We're going to multiply the time it took for you to hear thunder (3.5 seconds) by the speed of sound in air (340 m/s)

3.5 x 340 = 1190

The lightning bolt was 1,190 meters away.
3 0
3 years ago
In which type of wave do air particles move together or apart parallel to the direction of the wave?
Kitty [74]
C. Sound waves is the answer =P
7 0
4 years ago
The distance from point a to point b is known as
mezya [45]

Answer:

6

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Air resistance allow objects to develop full acceleration due to gravity true or false
    15·1 answer
  • A __________ has distinct properties and composition that never vary. A) solution B) molecule C) pure substance D) heterogeneous
    7·2 answers
  • When tension is applied to a metal wire of length L , it stretches by Δ L . If the same tension is applied to a metal wire of th
    11·2 answers
  • Imagine you are holding a small ball below you so that you look down on its "north pole." turn the ball in a counterclockwise di
    15·1 answer
  • Which of the circuit diagrams shown in Figure 21-1A is a parallel circuit?
    10·1 answer
  • What is quantitative?
    8·1 answer
  • A sprinter accelerates from rest to 10.0 m/s in 1.28 s . Part A Part complete What is her acceleration in m/s2? a a = 7.81 m/s2
    6·1 answer
  • a net force of 219 N is exterted on a rock. the rock has an acceleration of 3m/s^2 due to this force. what is the mass of the ro
    7·1 answer
  • An electron moves through a region of crossed electric and magnetic fields. The electric field E = 3059 V/m and is directed stra
    6·1 answer
  • What is linear momemtum​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!