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
Hitman42 [59]
2 years ago
14

A cat weighing 7 kg chases a mouse at a speed of 4 m/s. What is the kinetic energy of the cat?

Physics
1 answer:
jeka57 [31]2 years ago
8 0
54J
You calculate kinetic energy by the equation.
KE= 1/2mv^2
m= mass
v= velocity
then we have
KE = 1/2 x 3 x 6^2
KE = 1/2 x 3 x 36 = 54J
You might be interested in
Suppose we repeat the experiment from the video, but this time we use a rocket three times as massive as the one in the video, a
shusha [124]

Answer:

2/3

Explanation:

In the case shown above, the result 2/3 is directly related to the fact that the speed of the rocket is proportional to the ratio between the mass of the fluid and the mass of the rocket.

In the case shown in the question above, the momentum will happen due to the influence of the fluid that is in the rocket, which is proportional to the mass and speed of the same rocket. If we consider the constant speed, this will result in an increase in the momentum of the fluid. Based on this and considering that rocket and fluid has momentum in opposite directions we can make the following calculation:

Rocket speed = rocket momentum / rocket mass.

As we saw in the question above, the mass of the rocket is three times greater than that of the rocket in the video. For this reason, we can conclude that the calculation should be done with the rocket in its initial state and another calculation with its final state:

Initial state: Speed ​​= rocket momentum / rocket mass.

Final state: Speed ​​= 2 rocket momentum / 3 rocket mass. -------------> 2/3

8 0
2 years ago
Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion felis concolor, the best jumper among
denis23 [38]
To reach a vertical height of 13.8 ft against gravity, which has an acceleration of 32 ft/s^2, the required vertical speed can be calculated from the equation:
vi^2 - vf^2 = 2*g*h
Given that it has vf = 0 (it is not moving vertically at its maximum height), g = 32, and h = 13.8, we can solve for vi:
vi^2 = 29.72 ft/s
This is only its vertical speed, so this is equivalent to its original speed multiplied by the sine of the angle:
29.72 ft/s = (v_original)*(sin 42.2<span>°</span>)
v_original = 44.24 ft/s
Converting to m/s, this can be divided by 3.28 to get 13.49 m/s.
4 0
3 years ago
build three straight ramps on the stage one ramp should be nearly flat and another should be extremely steep the last ramp shoul
notsponge [240]

Answer:

hope this helps

Explanation:

3 0
1 year ago
The real advantage to hydrostatic weighing is that it __________.
Molodets [167]

Answer:

B. gives one of the most accurate measurements of body fat

5 0
3 years ago
If the force acting on an object is multiplied by _____, the product is called work
Aneli [31]
The distance the object travels
5 0
3 years ago
Other questions:
  • What will happen if you drop a golf ball, a baseball, and a bowling ball at the same instant from the top of a tall building
    15·1 answer
  • Push a notebook or some other object so that it slides across a table or desktop. What force causes the notebook to start moving
    7·1 answer
  • A "homemade" capacitor can be built by placing a sheet of paper between two foil. Imagine that the sheet of paper is 21 cm x 30
    8·1 answer
  • Is the acceleration due to gravity in projectile motion always negative? please explain
    7·1 answer
  • I will GIVE BRAINLYEST AND POINTS PLEAS HELP!!!
    8·1 answer
  • What is the main structure of lymphatic system?
    10·2 answers
  • A car moves with a speed of 30 metres per second calculate the distance travelled in 30 seconds
    15·1 answer
  • Two long, straight wires, one above the other, are seperated by a distance 2a2a and are parallel to the x−axisx−axis. Let the +y
    15·1 answer
  • What do fast-twitch and slow-twitch muscle fibers share in common
    10·1 answer
  • An object is placed 250 cm in front of a concave circular mirror, and the image of the object also appears at 250 cm in front of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!