PHYSICS HIGH SCHOOL

A ball is thrown horizontally from the top ofa building 140 m high. The ball strikes the
ground 54 m horizontally from the point of
release.
What is the speed of the ball just before it
strikes the ground?
Answer in units of m/s.

Answers

Answer 1
Answer:

Answer:

v = d / t = 54 / 5.34 = 10.11 m/s (rounded to two decimal places)

Explanation:

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Bilangan 0,000 000 0124 bila di tulis dengan notasi ilmiah adalah

Answers

Notasi ilmiah adalah cara penulisan nomor yang terlalu besar atau kecil untuk dengan mudah ditulis dalam notasi desimal standar
jawaban :
0,000 000 0124
;1,24×10-8 (1/10 pangkat 8)

A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the following situations would they both have the same momentum?

Answers

You haven't suggested any situations. As far as we know from the question, they're both still sitting on the shelf or in a bag somewhere, and their momenta are equal ... both zero. Momentum=(mass) x (speed). As long as the less massive ball is traveling at least twice as fast as the more massive one, its momentum is the same or greater than that of the softball.

 

The baseball is thrown at 50 m/s and the softball is thrown at 25 m/s.

hope this helps :/

The water at the top of a waterfall has _____ energy.potential
kinetic
heat
metabolic

Answers

I believe the answer isPOTENTIAL ENERGY. The water at the top of the waterfall has Potential Energy.Potential Energy is defined as the energy that is stored when an object is atrest. At the top of the waterfall, water will have maximum potential energy. Whenthe water falls down, it is will already have kinetic energy which is energythat is produced through continuous motion. When it is finally in the bottom,water will have maximum kinetic energy. 

Answer:

The water at the top of a waterfall has __potential___ energy.

Somebody plz answer these 5 only thanks!!!
Will mark as brainliest
:D

Answers

I believe it’s
True
True
True
True
False

Answer:

false

true

true

true

false

If you throw a ball up with a velocity of 7 m/s, how long will it take for the ball to reach the top of its path?A. 0.11 Seconds
B. 0.41 Seconds
C. 0.71 Seconds
D. 1.01 Seconds

Answers

Answer:

c. 0.71 [s]

Explanation:

To solve this problem we must use the following equation of kinematics.

v_(f) =v_(o) -g*t

where:

Vf = final velocity = 0 (because when the ball reaches the top, there is no movement)

Vo = initial velocity = 7 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time [s]

Note: The negative sign of the equation means that the movement is againts the direction of the gravity acceleration.

0 = 7 - (9.81*t)\nt = 0.713 [s]

How does matter and energy move through the water cycle

Answers

energy moves through an ecosystem when an organism is eaten. As you go up each trophic level, 10% of energy is transferred up. Matter on the other hand, is neither lost or gained. so it just moves up the trophic levels
I have attached a photo to explain. (:
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