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
andre [41]
3 years ago
13

1. How much work is done on a 20-N rock that you lift 1.5 meters up?

Mathematics
1 answer:
RUDIKE [14]3 years ago
4 0

Answer:

= 30 joules

Step-by-step explanation:

Work done is given by the product of Force and distance

Work done = Force × distance

Work is measured in joules.

Force = 20 N , distance = 1.5 m

Thus;

Work done = 20 N × 1.5 m

                 <u> = 30 Joules</u>

You might be interested in
Jimmy has listed the amount of money in his wallet for each of the last ten days. He decides to remove day 7, as that was payday
abruzzese [7]

Answer:

The mean will reduce

Step-by-step explanation:

The total amount of money for the ten days divided by number of days will give mean 1, M₁

Removing the value for day seven will reduce the sum of money as it will be for 9 days only.In finding the mean, you will divide by 9 days to get mean M₂

Mean M₂ < M₁

8 0
2 years ago
Photo attached! 10 points! Thank you in advance!!
Fantom [35]

ax^2+bx+c=0\\\\x^2+7x+9=3\qquad|\text{subtract 3 from both sides}\\\\x^2+7x+9-3=3-3\\\\\boxed{x^2+7x+6=0\to A.}

a=1,\ b=7,\ c=6

6 0
3 years ago
Read 2 more answers
Please you can help me with this problem. Thanks.
Galina-37 [17]

L= 1/8
O=1/4
C=1/8
H=1/8
S=1/8
O or L=3/8
S or C=1/4
S or C or O=1/2
OR mean to add.

5 0
3 years ago
Pls explain how to solve it!
Sophie [7]

Answer:

a = jd

Step-by-step explanation:

We want to solve for a given that a/d = j

To do so we want to isolate a (get a by itself )

We can do this by using inverse operations.

We would want to get rid of the d

A is being divided by d.

The inverse of division is multiplication so to get rid of the d we multiply a/d by d but whatever we do to one side we must do to the other so we multiply both sides by d

a/d * d = a

j * d = jd

we are then left with a = jd

And we are done!

5 0
2 years ago
Read 2 more answers
3) the product of n and 9​
insens350 [35]

Answer:

9n

Step-by-step explanation:

i mean 9 x n = 9n. straight forward...

8 0
2 years ago
Other questions:
  • Please help!
    14·2 answers
  • Please help my sister with this
    5·1 answer
  • Name a pair of lines that appear to be parallel
    12·1 answer
  • Evaluate 31 2x when x=4
    11·2 answers
  • Can someone plz help me with numbers 8,10,12. Need for today
    5·1 answer
  • Solve this in quadratic formula please and thank you.
    8·1 answer
  • A photographer is 6 feet tall and cast a shadow that is 2 feet long. He is photographing a palm tree with a shadow that is 7 fee
    7·1 answer
  • Pls help <br> -21 ÷ b = 3, b = ? and uhm this one too<br> 3c + 1 = 10, c = ?
    14·1 answer
  • If line a and line b are parallel lines, which statement is true?
    12·1 answer
  • How many 3 did git numbers can be formed by rearranging the digits in the set {2,3,4} if the number must be odd?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!