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
swat32
3 years ago
14

The kinetic energy of a car of mass 180kg moving at a constant velocity is 4410J. What is its velocity?

Physics
1 answer:
Delvig [45]3 years ago
5 0

Answer:

7m/s

Explanation:

Data obtained from the question include:

K.E (kinetic energy) = 4410J

m (mass) = 180kg

V (velocity) =?

Kinetic energy is the energy an object possess while in motion. It is represented mathematically as:

K.E = 1/2 mv^2

With the above formula, we obtained the velocity the car as follow:

K.E = 1/2mv^2

4410 = 1/2 x 180 x v^2

4410 = 90 x v^2

Divide both side by 90

v^2 = 4410/90

v^2 = 49

Take the square root of both side

v = √49

v = 7m/s

Therefore, the velocity of the car is 7m/s

You might be interested in
What Electromagnetic has a shorter wavelength
True [87]
The electromagnetic that has a shorter wavelength is ultraviolet (UV)
3 0
3 years ago
Read 2 more answers
Which of the fluids below would produce the highest pressure at the bottom of a tank for the same fluid depth?
marishachu [46]
The answer is  a property of density. The higher the density, the higher the pressure at the bottom. 

Pressure = mass / Area. So given that the 4 samples occupy the same area at the bottom, the mass is going to be the determining factor. Per given volume, mercury has the largest mass. The answer is A
7 0
3 years ago
The Gulf Stream moves water from near Florida northward across the Atlantic and past northwestern Europe . How does the Gulf Str
Zolol [24]

The temperature of the Ocean affects weather conditions. Because the Gulf Stream moves warmer water from the North Atlantic towards Europe they actually have warmer winters than other areas do.

7 0
2 years ago
Jack and Jill have made up since the previous HW assignment, and are now playing on a 10 meter seesaw. Jill is sitting on one en
Airida [17]

Answer: 3 m.

Explanation:

Neglecting the mass of the seesaw, in order the seesaw to be balanced, the sum of the torques created by  gravity acting on both children  must be 0.

As we are asked to locate Jack at some distance from the fulcrum, we can take torques regarding the fulcrum, which is located at just in the middle of the length of the seesaw.

If we choose the counterclockwise direction as positive, we can write the torque equation as follows (assuming that Jill sits at the left end of the seesaw):

mJill* 5m -mJack* d = 0

60 kg*5 m -100 kg* d =0

Solving for d:

d = 3 m.

6 0
3 years ago
What is the common phrase for natural selection
Rainbow [258]
Natrual selection is where animalz better adapt to their enviroment

7 0
2 years ago
Other questions:
  • The human eye can readily detect wavelengths from about 400 nm to 700 nm. If white light illuminates a diffraction grating havin
    8·1 answer
  • Sort the characteristics of solids liquids and gases into the correct colums
    10·1 answer
  • if a bowling ball hits a wall a force of 6 N, the wall exerts a force of how much back. on the bowling ball
    5·1 answer
  • I need someone to help me work through this
    13·1 answer
  • What can cause the sea level to fall? ocean basins getting smaller or water being removed from the hydrological cycle ocean basi
    11·2 answers
  • In space movies, spacecrafts explode and oxygen is needed for a fire to start. Why is it wrong? What would really happen?
    11·1 answer
  • A round asteroid has a surface gravity of .0288 m/s^2 if the mass of the asteroid is 1.10 x10^18 kg what is its radius
    14·1 answer
  • A TMS (transcranial magnetic stimulation) device creates very rapidly changing magnetic fields. The field near a typical pulsed-
    10·1 answer
  • An object is NOT accelerating. Is its motion changing?<br> Yes or No?
    13·2 answers
  • Two boys are at the top of a waterslide at Seven Peaks Water Park. One boy (boy A) slips off the top of the tower and falls unob
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!