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
Rufina [12.5K]
3 years ago
14

What is the kinetic energy of an automobile with a mass of 1252 kg traveling at a speed of 12 m/s?

Physics
1 answer:
torisob [31]3 years ago
4 0
KE = 1/ 2 * 1252 * 144
 as  KE = 1/2 * m * v ^2
 = 90144 J



You might be interested in
Explain what happens to the gas pressure in a balloon as the temperature decreases
Julli [10]

Answer: The pressure decreases as the temperature decreases.

Explanation: As the temperature decreases, the particles of gas start moving more slowly. The particles' velocity decreases and as it collides with the wall of the container, it exerts a less force on the walls of the container. This follows on from the equation Ft = mv - mu. Less force therefore means less pressure as force and pressure are proportional according to equation Pressure = Force / Area.

5 0
2 years ago
Explain why the light bulb isn't lighting up in the circuit<br> pictured on the right.
FromTheMoon [43]
The wires should be attached to each screw on the light not only one
8 0
3 years ago
A horse running at 3 m/s speeds up with a constant acceleration of 5 m/s2. How fast is the
Elan Coil [88]

Answer:

The horse is going at 12.72 m/s speed.

Explanation:

The initial speed of the horse (u) = 3 m/s

The acceleration of the horse (a)= 5 m/s^{2}

The displacement( it is assumed it is moving in a straight line)(s)= 15.3 m

Applying the second equation of motion to find out the time,

s=ut+\frac{1}{2}at^{2}

15.3=3t+2.5t^{2}

2.5t^{2}+3t-15.3=0

Solving this quadratic equation, we get time(t)=1.945 s, the other negative time is neglected.

Now applying first equation of motion, to find out the final velocity,

v=u+at

v=3+1.945*5

v=3+9.72

v=12.72 m/s

The horse travels at a speed of 12.72 m/s after covering the given distance.

7 0
4 years ago
A bar magnet is doplar. This means is has ___ poles.<br> A. Two <br> B. Zero<br> C. Three<br> D. One
Mandarinka [93]
This means it has TWO poles

The 2 poles are NORTH and SOUTH
8 0
3 years ago
Once a baseball has been hit into the air, what forces are acting upon it? How can you tell that any forces are acting upon the
Tom [10]
Well, its in the air, so the air is "upon" the ball. and when it comes down...you catch it, and throw it, and get someone out, and win the game, and just keep doing that, and boooommm you're and pro baseball player. Life is good
8 0
3 years ago
Other questions:
  • what is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is f
    13·1 answer
  • An 80 kg man is standing in an elevator which is moving down and slowing down at a rate of 2.0 m/s2. how hard must the floor of
    10·1 answer
  • What does it signify if point 2 shifts down and to the left?
    15·1 answer
  • Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.1×104 m/s when at a distance
    9·1 answer
  • a rock is at the top of a 20 meter tall hill the rock has a mass of 10 kg how much potential does it have
    9·1 answer
  • Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth a
    7·1 answer
  • What is it known as when a force is applied to an object for an amount of time?
    11·2 answers
  • What force will accelerate a 20 kg object at 4 m/s 2? *
    5·1 answer
  • I have a pen<br> I have a apple<br> what do I have now?
    8·2 answers
  • Tearing of paper is said to be a change that cannot be reversed. What about paper recycling? Explain.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!