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
yaroslaw [1]
3 years ago
5

the driving force on the train was 12000N how large must be the force applied in order to stop the train

Physics
1 answer:
Sidana [21]3 years ago
3 0

Answer:

Anywhere above 12000N in order to decelerate the train since F=mass*acceleration

You might be interested in
What is the hardest stage of BME​
san4es73 [151]

Answer:

Neural Engineering and Tissue Engineering

Explanation:

• BME is Biomedical Engineering. It has various topics such as Anantomy, Physiology, Neural Engineering and Tissue engineering, Medical mechanisation and others.

{}

3 0
2 years ago
Read 2 more answers
A bike race against the clock takes place on a straight road. Yan drives at 37 km / h and he starts the course 30s before Christ
joja [24]

Given data:

Yan speed;

u_1=37\text{ km/h}

Christopher speed;

u_2=38.9\text{ km/h}

Christophe starts 30 s later than Yan. Therefore, Christophe takes 30 s less than Yan to reach the same distance.

Part (A)

The distance is given as,

d=ut

Let both Yan and Christophe meet at d distance from the start position. Therefore,

u_1t=u_2(t-30)

Substituting all known values,

\begin{gathered} (37\text{ km/h})t=(38.9\text{ km/h})\times(t-30) \\ \frac{(37\text{ km/h})}{(38.9\text{ km/h})}=\frac{(t-30)}{t} \\ 0.95=1-\frac{30}{t} \\ \frac{30}{t}=1-0.95 \\ \frac{30}{t}=0.05 \\ t=\frac{30}{0.05} \\ t=600\text{ s} \end{gathered}

Therefore, 600 s after Yan's departure Christophe will join him.

Part (B)

The distance is given as,

d=u_1t

Substituting all known values,

\begin{gathered} d=(37\text{ km/h})\times(600\text{ s}) \\ =(37\text{ km/h})\times(600\text{ s})\times(\frac{1\text{ hr}}{3600\text{ s}}) \\ \approx6.17\text{ km} \end{gathered}

Therefore, Christophe joins Yan after 6.17 km from the start.

3 0
1 year ago
Pls help! What would be considered an antonym for law of superposition??
OverLord2011 [107]

Answer:

do you have any pictures or any answers we can choose from?

Explanation:

This is an incomplete question.

8 0
3 years ago
Tarzan swings back and forth on a
WARRIOR [948]

Answer:

Considering Tarzan as a point mass at point L and using the equation for a simple pendulum:

P = 2 pi (L / g)1/2

P^2 = 4 pi^2 L / g

L = g P^2 / (4 pi^2) = 9.8 m/s^2 * 7.27^2 s^2 / (4 pi^2) = 13.1 m

4 0
3 years ago
6. Two light bulbs are designed for use at 120 V and are rated at 75 W and 150 W. Which light bulb has the greater filament resi
Nonamiya [84]

\\ \bull\tt\longrightarrow P=\dfrac{V^2}{R}

  • P is power
  • R is resistance

\\ \bull\tt\longrightarrow R=\dfrac{V^2}{P}

Hence

\\ \bull\tt\longrightarrow R\propto V

\\ \bull\tt\longrightarrow R\propto \dfrac{1}{P}

  • Therefore if power is low then resistance will be high.

The first bulb has less power hence it has greater filament resistance.

5 0
3 years ago
Other questions:
  • What would be the final temperature of the system if all the heat lost by the copper block were absorbed by the water in the cal
    7·1 answer
  • Which of the following will not conduct an electrical current?
    6·2 answers
  • Define e constitutional principle of limited government
    11·1 answer
  • How long does it take a plane that is traveling at 350 km/h to travel 1750 km?
    9·1 answer
  • What is the distance of the biosphere from the earth system?
    12·1 answer
  • A ray is incident on a film of thickness t and the index of refraction n=1.6 at an angle θ = 35 degrees. Find the angle of refra
    5·1 answer
  • You want to make a ride so you do not want to exceed 1.1g’s, if the radius of the turns are 10m, then what is the maximum speed
    10·1 answer
  • Is 40,000 °C hotter or colder than 3,600 °C????
    6·2 answers
  • A sphere of radius 0.081029 m is made of aluminum. It is submerged in flowing water with a temperature of 25 °C that results in
    13·1 answer
  • Coal: converts mechanical energy of _____________ into electricity.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!