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
erastovalidia [21]
3 years ago
5

IT'S URGENT PLZZZZZZZZZ HELP SOMEONE HELP PLZZZZZZZZZZZZZZZ I NEED IT PLZZZZZZZZZZZZZZZZZZ!!!

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0
At start:   PE only

At end:  KE and energy lost to friction


PE = KE + E
E  = PE - KE
    = mgh - (1/2)mv^2
    = (40)(9.8)(12) - (.5)(40)(10)^2
    = 2704J

You might be interested in
What is f(5) if f(1) = 3.2 and f(x + 1) = (f(x))?
scoray [572]

Answer:

The value of f(5) is 3.2.

Step-by-step explanation:

It is given that f(1) = 3.2 and

f(x+1)=f(x)

Substitute x=1 in the above equation.

f(1+1)=f(1)

f(2)=3.2

Substitute x=2 in the given equation.

f(2+1)=f(2)

f(3)=3.2

Substitute x=3 in the given equation.

f(3+1)=f(3)

f(4)=3.2

Substitute x=4 in the given equation.

f(4+1)=f(4)

f(5)=3.2

Therefore the value of f(5) is 3.2.

5 0
3 years ago
Read 2 more answers
During the walk-a-thon, brian walks 3 and one fourth kilometers, and Stacy walks 2 and seven eighths kilometers. How many more k
BARSIC [14]

Answer:

3/8 or three eighths

8 0
2 years ago
You’re given two side lengths of 10 centimeters and 8 centimeters. The angle between the sides measures 40°. How many triangles
Evgesh-ka [11]

Answer: Only one.

Step-by-step explanation:

We are given that in a triangle two side lengths of 10 centimeters and 8 centimeters. The angle between the sides measures 40°.

Suppose there is also a triangle with the same measures.

Then both the triangles are congruent by SAS congruence postulate.

Thus, every triangle with the given measurement are congruent to each other by SAS postulate.

Therefore, only one triangle can be possible with the given measurement.

5 0
3 years ago
Read 2 more answers
Please help! I will mark brainliest! No random answers please
enot [183]

Answer:

yes

Step-by-step explanation:

6 0
2 years ago
Solve -20 - 5 &gt; 3.<br> Which graph shows the solutions?
Trava [24]

Answer:

Third option is correct

Step-by-step explanation:

Given: -2a-5>3

To choose: the correct option

Solution:

-2a-5>3

-2a>3+5\\-2a>8

Multiply both sides by - 1

2a

For a, it includes all numbers less than -4

The graph is as follows:

7 0
2 years ago
Other questions:
  • I really need the answer for this problem
    14·1 answer
  • 90 3/7 was a demical
    9·1 answer
  • 30% of what number is 9
    10·1 answer
  • one yard company charges $50 a month to mow and edge a lawn plus $10 an hour for the worker. A second conpany charges $60 a mont
    7·1 answer
  • What is the equation of a line that passes through (7, 8) and has a slope of -3?
    15·1 answer
  • A board 1.2 m long is cut into two so that the length of the longer piece is 15cm longer than twice the length of the shortest p
    6·1 answer
  • Standard deviation measures _____ risk while beta measures _____ risk.
    13·1 answer
  • Steven runs a pizza sho. Since he added breakfast pizza to the menu 54 out of 78customers have ordered the new pizza. If Steven
    11·1 answer
  • The area of the triangle below is 3/25 square feet. What is the length of the base? Express your answer as a fraction in simples
    5·2 answers
  • Given rectangle QUAD, if QU = 13, find DA.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!