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
blsea [12.9K]
2 years ago
9

A 1.120 kg car is traveling with a speed of 40 m/s. find its energy

Physics
1 answer:
Aleonysh [2.5K]2 years ago
4 0

Answer:

896 kJ

Explanation:

KInetic Energy = 1/2 m v^2

                         = 1/2 (1120)(40^2) = 896 000 J    or  896 kJ

You might be interested in
The average standard rectangular building brick has a mass of 3.10 kg and dimensions of 225 m x 112 m x 75 m. The gravitational
zzz [600]

Answer:

P=3.61\times 10^{-3}\ Pa

Explanation:

Given that,

Mass of a brick, m = 3.1 kg

The dimensions of the brick 225 m x 112 m x 75 m

We need to find the maximum pressure created by the brick. We know that, the force acting per unit area is called pressure exerted. It is given by the formula as follows :

P=\dfrac{F}{A}

F = mg

A = area with minimum dimensions i.e. 112 m x 75 m

Pressure is maximum when the area is least.

So,

P=\dfrac{mg}{A}\\\\P=\dfrac{3.1\times 9.8}{112\times 75}\\\\P=3.61\times 10^{-3}\ Pa

So, the maximum pressure created by brick is 3.61\times 10^{-3}\ Pa.

5 0
3 years ago
Why car speed is not considered as car velocity?​
grigory [225]

Answer:

Cause its scalar quantity

Explanation:

since speed does not take directions into consideration, it is considered to be a scalar quantity. On the other hand, the velocity of an object does not take into account direction, thus making it a vector quantity.

4 0
3 years ago
Why isn't Coulomb's law valid for dielectric objects, even if they are spherically symmetrical?
marshall27 [118]

Answer:

Explanation:

The "traditional" form of Coulomb's law, explicitly the force between two point charges. To establish a similar relationship, you can use the integral form for a continuous charge distribution and calculate the field strength at a given point.

In the case of moving charges, we are in presence of a current, which generates magnetic effects that in turn exert force on moving charges, therefore, no longer can consider only the electrostatic force.

4 0
3 years ago
GIVING BRAINLIST!!!!
34kurt
A negative object so it takes in the charged object and nothing will happen until something else would touch it I think
3 0
2 years ago
Read 2 more answers
A car driving at a constant speed of 64 mi/h travels 68 miles. How many hours did this take?
babymother [125]
64 miles/hour
Therefore 1/64 hours/mile
68 miles * 1/64 hours/mile (notice how miles cancels out)
Therefore the answer is 68/64 hours = 1.0625 hours = 1 hour 3min and 45sec.
3 0
3 years ago
Other questions:
  • Surface tension _____.
    7·1 answer
  • Which property do liquids and gases share?
    6·2 answers
  • What happens to ocean water as it moves from Antarctica to the equator
    6·1 answer
  • A student submerges an irregularly object in a graduated cylinder half filled with water. The level of the water in the cylinder
    15·1 answer
  • The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which
    15·1 answer
  • Does a swimmer underwater observe the same color or a different color for this light?
    15·1 answer
  • Which of the following has the highest viscosity? A. corn syrup B. milk C. water D. orange juice
    15·1 answer
  • Which scientific description of heat is accurate? A. Heat is the average kinetic energy of atoms in an object. B. Heat is the fl
    6·1 answer
  • Energy that travels in waves through matter
    5·1 answer
  • White light, with uniform intensity across the visible wavelength range of 400 nm - 690 nm, is perpendicularly incident on a wat
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!