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
german
3 years ago
12

Help plzz!!

Physics
2 answers:
frez [133]3 years ago
4 0

Answer: It would be 125 J

Hatshy [7]3 years ago
3 0

Answer:

bro lm.ao i recognize you from west point you go there? bro i be using this site too lm.aoooo

Explanation:

You might be interested in
A body is dropped from the roof of a 20 m high building by how much:
USPshnik [31]

Answer:

t = 2.01 s

Vf = 19.7 m/s

Explanation:

It's know through the International System that the earth's gravity is 9.8 m/s², then we have;

Data:

  • Height (h) = 20 m
  • Gravity (g) = 9.8 m/s²
  • Time (t) = ?
  • Final Velocity (Vf) = ?

==================================================================

Time

Use formula:

  • \boxed{t=\sqrt{\frac{2*h}{g}}}

Replace:

  • \boxed{t=\sqrt{\frac{2*20m}{9.8\frac{m}{s^{2}}}}}

Everything inside the root is solved first. So, we solve the multiplication of the numerator:

  • \boxed{t=\sqrt{\frac{40m}{9.8\frac{m}{s^{2}}}}}

It divides:

  • \boxed{t=\sqrt{4.08s}}

The square root is performed:

  • \boxed{t=2.01s}

==================================================================

Final Velocity

use formula:

  • Vf = g * t

Replace:

  • Vf = 9.8 m/s² * 2.01 s

Multiply:

  • Vf = 19.7 m/s

==================================================================

How long does it take to reach the ground?

Takes time to reach the ground in <u>2.01 seconds.</u>

How fast does it hit the ground?

Hits the ground with a speed of <u>19.7 meters per seconds.</u>

7 0
3 years ago
Which landform represents the boundary between the land and an ocean or a lake?
Likurg_2 [28]
Coastline or seashore
3 0
3 years ago
Read 2 more answers
What is the difference between current and voltage besides their units of measurement
kondor19780726 [428]
"Voltage" is the "pressure" that makes electrons want to leave where they are
and head in some direction, if there's conducting material in that direction.

"Current" is the rate at which they all migrate in that direction.
8 0
3 years ago
What is the elevation of point B?<br> What about F?
kolbaska11 [484]

Explanation:

Since I can only do this by observation, the elevation of F is approximately 850km and the elevation of B is 925km.

7 0
3 years ago
About 3% of the water on Earth is freshwater. Only about 40% of that freshwater is available for human use. Why is so much fresh
Pie
A) it is frozen i think
7 0
3 years ago
Read 2 more answers
Other questions:
  • If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?
    11·2 answers
  • When comparing the three atomic models provided, which statement best describes the diagram?
    8·1 answer
  • The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of heat. As it expands, it doe
    15·1 answer
  • A straight wire segment 5 m long makes an angle of 30° with a uniform magnetic field of 0.37 T. Find the magnitude of the force
    12·1 answer
  • A 0.50 kilogram ball is held at a height of 20 meters. What is the kinetic energy of the ball when it reaches halfway after bein
    7·1 answer
  • Two airplanes leave an airport at the same
    9·2 answers
  • If a ball is thrown up at an initial speed of 40. m/s, how many seconds does it take to reach the top of its path?
    5·1 answer
  • A solid wooden cube, 30cm on each side can be totally submerged in water if it is pushed downward with a force of 54N. What is t
    13·1 answer
  • Energy Conservation With Conservative Forces: If a spring-operated gun can shoot a pellet to a maximum height of 100 m on Earth,
    12·1 answer
  • What is the net force in this image?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!