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
kherson [118]
3 years ago
6

An automobile with passengers has weight 19.4 kN and is moving at 108 km/h when the driver brakes to a stop. The frictional forc

e on the wheels from the road has a magnitude of 8040 N. Find the stopping distance.
Physics
1 answer:
mixer [17]3 years ago
4 0

Answer:

12.0

Explanation:

You might be interested in
If a mass of .343 kg moves down a 5m ramp in 5.8 seconds, what is the velocity and KE developed by the moving mass
Soloha48 [4]

Velocity 0.86m/s

0.13J

Explanation:

Given parameters:

Mass = 0.343kg

distance = 5m

time taken = 5.8s

Unknown:

Velocity of mass = ?

Kinetic energy = ?

Solution:

Velocity is the rate of change of displacement with time. It is a vector quantity that shows magnitude and direction.

 Mathematically;

   Velocity = \frac{displacement}{time}

  Velocity  = \frac{5}{5.8 } = 0.86m/s

Kinetic energy is the energy due to the motion of a body. It is expressed mathematically as:

  Kinetic energy  = \frac{1}{2}  m v^{2}

m is the mass

v is the velocity

  Kinetic energy  = \frac{1}{2 }   x    0.343  x    0.86^{2} = 0.13J

learn more:

Kinetic energy brainly.com/question/6536722

#learnwithBrainly

7 0
3 years ago
On what criteria is the Fujita scale for Tornadoes based?
svp [43]
B. Tornado destruction
It is based on the amount of damage
7 0
3 years ago
Ten identical steel wires have equal lengths L and equal "spring constants" k. The wires are connected end to end so that the re
lapo4ka [179]

Answer:

K_{system} = \frac{k}{10}

Explanation:

When the springs are connected end to end, it means they are connected in series. When the springs are connected in series, the stress applied to the system gets applied to each of the springs without any change in magnitude while the strain of the system is the sum total of strains of each spring. The spring constant of the resultant system is given as,

\frac{1}{K_{system}} = (\frac{1}{K_{1}})+(\frac{1}{K_{2}})+(\frac{1}{K_{3}})+ (\frac{1}{K_{4}})+.....+(\frac{1}{K_{n}})

Here, n = 10

Spring constant of each spring = k

Thus,

\frac{1}{K_{system}} = (\frac{1}{K_{1}})+(\frac{1}{K_{2}})+(\frac{1}{K_{3}})+ (\frac{1}{K_{4}})+.....+(\frac{1}{K_{10}})

\frac{1}{K_{system}} = (\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})+(\frac{1}{k})

\frac{1}{K_{system}} = \frac{10}{k}

K_{system} = \frac{k}{10}

7 0
3 years ago
Read 2 more answers
Name 3 objects that have gravitational potential energy?
dezoksy [38]
Well i have three things that depends on potiential energy
6 0
2 years ago
A boy stands 190m from a high wall and claps his hands,if he hears an echo 1.3 seconds later. calculate the speed of sound in ai
IrinaVladis [17]

Answer:

292.31 m/s

Explanation:

If Distance (d) = 190m

Time (t) = 1.3s

Speed of sound in air (v) =?

then

2d=vt

v=2d/t

v= 2×190/1.3

v=292.31 m/s

3 0
2 years ago
Other questions:
  • Which if these events happens first in earths polar regions
    9·1 answer
  • A frisbee is flying through the air. Which forces are acting on it (choose 3)​
    15·1 answer
  • What did Charles Darwin’s conclude on the Galapagos Island? Plz answer fast
    9·1 answer
  • 2 things that can cause power output to decrease
    10·2 answers
  • Which would be most useful for overcoming the disadvantage of using ores? using public transportation recycling aluminum product
    9·2 answers
  • What are groups 1,2 and 3 examples of on the periodic table
    15·1 answer
  • Jane has a mass of 40 kg. She pushes on a rock with a force of 100 N. what force does the rock exert on Jane
    5·1 answer
  • How does the current in a circuit change if the resistance is doubled? The current is halved. The current is doubled. The curren
    10·2 answers
  • Why is hip-hop & Zumba dance exercises so popular? does dancing make you a better person?
    8·1 answer
  • A copper wire has a mass of 29.33 mg/cm and has a length of 2.5 cm.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!