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
stepladder [879]
3 years ago
6

A stone dropped from the top of a 80m high building strikes the ground at 40 m/s after falling for 4 seconds. The stone's potent

ial energy with respect to the ground is equal to its kinetic energy … (use g = 10 m/s 2) Please explain how you got it so I can learn.
A) at the moment of impact.

B) 2 seconds after the stone is released.

C) after the stone has fallen 40 m.

D) when the stone is moving at 20 m/s.
Physics
1 answer:
Alinara [238K]3 years ago
4 0

Answer:

Explanation:

The explanation and answer to this is posted in your question #24236118

You might be interested in
A 65 kg box is lifted by a person pulling a rope a distance of 15 meters straight up at a constant speed. How much Power is requ
Y_Kistochka [10]

Answer:

Power is 1061.67W

Explanation:

Power=force×distance/time

Power=65×9.8×15/9 assuming gravity=9.8m/s²

Power=3185/3=1061.67W

8 0
2 years ago
What is the momentum of an object that has a mass of 0.03 grams and a velocity of 1200 m/s2
ruslelena [56]

answer is 36

because the formulae of momentum is

mass×velocity

3 0
2 years ago
Compared to Earth's moon, the moons of Mars are
Mice21 [21]
I think is b I think
7 0
2 years ago
Covalent bonds form when electrons are
NeX [460]
It would be A) shared
8 0
3 years ago
Read 2 more answers
A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wal
Helga [31]

Answer:

2.59 m

Explanation:

Coordinates of origin = (0, 0)

Coordinates of Point p where the fly reach = (2.3 m, 1.2 m)

Use the distance formula of coordinates to find the distance between the origin and the point P.

d=\sqrt{\left ( x_{2}-x_{1} \right )^{2}+\left ( y_{2}-y_{1} \right )^{2}}

d=\sqrt{\left ( 2.3- 0 \right )^{2}+\left ( 1.2-0 \right )^{2}}

d = 2.59 m

Thus, the distance between the origin and the point P is 2.59 m.

5 0
3 years ago
Other questions:
  • What is speed of a particle?
    14·2 answers
  • Consider the motion of a bullet that is fired from a rifle 6 m above the ground in a northeast direction. The initial velocity o
    8·1 answer
  • A car accelerates from 21.0 m/s to 46.0 m/s in 2.5 seconds. What is the acceleration of the car.
    12·1 answer
  • A charge +1.9 μC is placed at the center of the hollow spherical conductor with the inner radius 3.8 cm and outer radius 5.6 cm.
    6·1 answer
  • At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball
    12·1 answer
  • A spring attached to a mass is at rest in the initial
    13·2 answers
  • A baseball leaves a bat and flies upward and toward center field. Do not ignore air resistance. What forces are exerted on the b
    11·1 answer
  • You decide to walk part of the way around a lake. The lake is a circle with a radius of 2.0 km You start on the shore due south
    11·1 answer
  • Three plant like organisms which cannot produce their own food are
    8·1 answer
  • Which of the following describes density only in terms of metric units?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!