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
hoa [83]
4 years ago
8

If a toy helicopter is moving at 12 m/s, how much energy does 3kg toy have?

Mathematics
1 answer:
kakasveta [241]4 years ago
6 0

9514 1404 393

Answer:

  216 J

Step-by-step explanation:

The kinetic energy is given by ...

  KE = 1/2mv^2

  KE = (1/2)(3 kg)(12 m/s)^2 = 216 kg·m²/s² = 216 J

The kinetic energy of the toy is 216 joules.

__

Its potential energy depends on its height.

You might be interested in
A right triangle has side lengths 7, 24, and 25 as shown below.
Hoochie [10]

Answer: Tan B = 0.2917 (16.26 degrees)

Sin B = 0.2800 (16.26 degrees)

Cos B = 0.9600 (16.26 degrees)

Step-by-step explanation: Please refer to the picture attached for details.

The right angled triangle LNB has been drawn with the sides labeled as 7, 24 and 25 as indicated. With angle B as the reference angle, we can now identify each side as follows;

Side 7 (opposite, facing the reference angle)

Side 24 (adjacent, between the reference angle and the right angle)

Side 25 (hypotenuse, facing the right angle).

Hence, using the trigonometric ratios,

Tan B = opposite/adjacent

Tan B = 7/24

Tan B = 0.2917 (16.26 degrees)

Sin B = opposite/hypotenuse

Sin B = 7/25

Sin B = 0.2800 (16.26 degrees)

Cos B = adjacent/hypotenuse

Cos B = 24/25

Cos B = 0.9600 (16.26 degrees)

3 0
4 years ago
The salary of teachers in a particular school district is normally distributed with a mean of $50,000 and a standard deviation o
Westkost [7]

Answer:

54,900

hope this helps!!

3 0
3 years ago
-2(x+1)+6x&lt;-14<br>I need help​
jeka57 [31]

Answer:

x<-3

Step-by-step explanation:

-2(x+1)+6x<-14

Distribute

-2x-2 + 6x < -14

Combine like terms

4x -2 < -14

Add 2 to each side

4x-2+2 < -14+2

4x < -12

Divide by 4

4x/4 < -12/4

x<-3

3 0
3 years ago
3x + 4y = 2<br> 2x + 4y =8
BabaBlast [244]
We see that both equations have 4y in them. Subtracting the second equation from the first equation, we get (3x -2x) + (4y-4y) = 2 - 8, x = -6


Plugging x = -6 into any equation, we see that our answer is 18 + 4y = 2, 4y = 2 - 18 = -16, y = -4.

Our answer is x = -6, y = -4
5 0
4 years ago
Please help! Will give brainlist
Svetllana [295]

Answer:

vertical

Step-by-step explanation:

bdvdhdvdhdvdhdhdvdhbdbdd

7 0
3 years ago
Read 2 more answers
Other questions:
  • What math do you mainly need to know in 7th grade
    5·2 answers
  • Simplify: 6y + 5z + 8y – 3z
    14·2 answers
  • Smoking can cause fatal damage to multiple human body systems. how does smoking directly affect the cardiovascular system
    8·1 answer
  • Four times the sum of a number and 9 equals 6
    6·1 answer
  • Hehe it’s me again 10 points!
    14·1 answer
  • Find the volume of a right rectangular prism if the dimensions of the base are 4 centimeters by 9 centimeters and the height is
    12·2 answers
  • What is the simplifed form of the fraction below?<br>24/30<br>​
    11·1 answer
  • Y=|x+5| if x&lt;-5<br> rewrite without absolute value I NEED THIS NOW!!!!!!
    7·2 answers
  • What's 3/4 as a percent?
    6·2 answers
  • The table represents the amount of storage space, in megabytes, used by music files on Zayd’s computer.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!