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
gtnhenbr [62]
2 years ago
7

The train is accelerated from rest at a speed of 0.11 m/s2 to reach a speed of 15.6 m/s. After reaching that speed the train mov

es at a constant speed for the rest of its journey. How far does the train travel after 5 minutes and the average speed entering the 5 minute time interval.
Physics
1 answer:
9966 [12]2 years ago
7 0

Answer:

cliff

Explanation:

You might be interested in
If the coefficient of friction is 0.3900 and the cylinder has a radius of 2.700 m, what is the minimum angular speed of the cyli
Aleks04 [339]

Answer:

w=3.05 rad/s or 29.88rpm

Explanation:

k = coefficient of friction = 0.3900

R = radius of the cylinder = 2.7m

V = linear speed of rotation of the cylinder

w = angular speed = V/R or to rewrite V = w*R

N = normal force to cylinder

N==\frac{m(V)^{2}}{R}=m*(w)^2*R

Friction force\\Ff = k*N\\Ff= k*m*w^2*R

Gravitational force \\Fg = m*g

These must be balanced (the net force on the people will be 0) so set them equal to each other.

Fg = Ff

m*g = k*m*w^2*R

g=k*w^{2}*R

w^2 =\frac{g}{k*R}

w=\sqrt{\frac{g}{k*R}} \\w =\sqrt{\frac{9.8\frac{m}{s^{2}}}{0.3900*2.7m}}\\ w=\sqrt{9.306}=3.05 \frac{rad}{s}

There are 2*pi radians in 1 revolution so:

RPM=\frac{w}{2\pi }*60\\RPM=\frac{3.05\frac{rad}{s}}{2\pi}*60\\RPM= 0.498*60\\RPM=29.88

So you need about 30 RPM to keep people from falling out the bottom

7 0
3 years ago
Can anybody help me with this Physics question! (DUE TOMORROW) (WILL MARK BRAINLIST)
Ymorist [56]
Do you need help with all of them
3 0
2 years ago
Read 2 more answers
What radiation lies at frequencies just below the frequencies of visible light?
vlabodo [156]
<span>Infrared radiation also called as infrared light was discovered by Sir William Herschel in 1800.It is an electronic magnetic radiation with longer wavelengths than those of a visible light.It involves waves rather than particles. It lies at frequencies just below the frequencies of visible light.</span>
3 0
3 years ago
6th grade science I mark as brainliest.​
DerKrebs [107]

Answer:

2m 13\frac{1}{3}s

Explanation:

1.5m = 1s

200m = \frac{200}{1.5} × 1s

          = 133\frac{1}{3}s

          = 2m 13\frac{1}{3}s

3 0
2 years ago
What is the specific definition of energy that relates it to work?
Crazy boy [7]
A b c d e f g h i j k l m
5 0
2 years ago
Other questions:
  • Twenty students were surveyed to find out how many hours of tv they watch during a school week
    9·1 answer
  • Explain at least 3 primary and secondary online sources of data<br>​
    14·1 answer
  • When the temperature of matter decrease , the particles do what
    7·1 answer
  • What’s the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms?
    9·2 answers
  • A steel rod has a length of 0.2 cm at 30 degrees C, what will be its length at 60 degrees C?
    11·1 answer
  • (b) The cylinder shown in figure 2 is fitted with a freely sliding piston containing an ideal gas of mass 13g and volume 1.0×10⁴
    7·1 answer
  • EXPLAIN CONSERVATION OF MOMEMTUM WITH THE HELP OF COLLISION OF TWO OBJECT.
    13·1 answer
  • David is driving a steady 30.0 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady
    14·2 answers
  • What is the general equation for a double-displacement reaction?
    6·1 answer
  • The safest way to view an image of the sun is to use.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!