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
gavmur [86]
3 years ago
12

Determine the kinetic energy of a 1000 kg roller coaster car that is moving with a speed of 20.0 m/s

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
3 0
KE = 0.5*m*v2 KE = (0.5) * (1000 kg) * (20 m/s)2
You might be interested in
If a 4 x 16 rectangle has the same area as a square, what is the length of a side of the square?
Licemer1 [7]

Answer:

Option D. 8 units

Step-by-step explanation:

step 1

Find the area of rectangle

The area of rectangle is

A=(4)(16)=64\ units^2

step 2

Find the length side of the square with the same area of rectangle

The area of a square is

A=b^2

where

b is the length side of the square

we have

A=64\ units^2

substitute

64=b^2

take the square root both sides

b=8\ units

therefore

The length side of the square is 8 units

7 0
3 years ago
Question is below....
Kamila [148]

Answer:

Step-by-step explanation:

For window, area 3×2

=6

For wall, area=20×16

=320

Area of wall withot window=320-6

=316

4 0
3 years ago
Need help please answer
leonid [27]

Answer:

the answer is 4-x^2

Step-by-step explanation:

-2x

and 2x cancel out

3 0
3 years ago
Read 2 more answers
What is the definition of marginal​ utility? A. The average utility from consuming a good or service multiplied by the number of
Ilya [14]

Answer:  Option 'E' is correct.

Step-by-step explanation:

Marginal utility is the addition utility derived from each successive unit of a particular good.

so, marginal utility is the change in utility from consuming an addition unit of a good or service.

Mathematically, it is expressed as

MU=\dfrac{\Delta TU}{\Delta Q}

Hence, Option 'E' is correct.

4 0
3 years ago
Assume that in a statistics class the probability of receiving a grade of A equals .30 and the probability of receiving a grade
Tom [10]

Answer:

Answer D is correct

6 0
3 years ago
Other questions:
  • Five times a number is 5 more than the number
    5·2 answers
  • How do I do this?????
    10·1 answer
  • FOR 15 POINTS I WILL GIVE BRAINLEST IF YOU ARE CORRECT! What is the solution to the system that is created by the equation y = 2
    5·2 answers
  • Simplify the expression below. 1/2 • 6+ 9 - (18÷6)
    14·1 answer
  • Marcus bought a shirt that was $10. the tax was 7%. what was the total price with tax.
    8·2 answers
  • 1 2 3 4 5 6 7 8 9 10
    5·1 answer
  • What is the thirty-second term of the arithmetic sequence -12, -7, -2, 3, ... ? Show your work.
    7·1 answer
  • Find the surface area of the prism.
    8·2 answers
  • 1. A restaurant charges $10 for each burrito, and a $5 delivery fee. Write an expression to represent the total cost to have x b
    14·1 answer
  • Math homework pls help!!!!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!