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victus00 [196]
3 years ago
10

____________ showed that matter and energy are two forms of the same thing.

Physics
2 answers:
Darya [45]3 years ago
7 0
Einstein. That genius
yuradex [85]3 years ago
3 0
Answer: Einstein did this!
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A ball is dropped from somewhere above a window that is 2.00 m in height. As it falls, it is visible to a person boxing through
Irina18 [472]

Answer:

4.14 m

Explanation:

In the last leg of the journey the ball covers 2 m in 2ms or 0.2 s .

Let in this last leg , u be the initial velocity.

s = ut + 1/2 g t²

2 = .2 u + .5 x 9.8 x .04

u = 9.02 m /s .

Let v be the final velocity in this leg

v² = u² + 2 g s

v² = (9.02)² + 2 x 9.8 x 2

= 81.36 +39.2

v = 10.97 m / s

Now consider the whole height from where the ball dropped . Let it be h.

Initial velocity u = 0

v² = u² +2gh

(10.97 )² = 2 x 9.8 h

h = 6.14 m

Height from window

= 6.14 - 2m

= 4.14 m

5 0
3 years ago
Based on the information in the graph which region is expected to have the least population growth from 2000 to 2020
MakcuM [25]

Answer:

A

Explanation:

The region with the least population growth will have the shallowest line.  That would be Europe.  Between 2000 and 2020, the line is basically flat, while the others are rising.

Answer is A.

6 0
3 years ago
What value of x is in the solution set of 2(3x – 1) ≥ 4x – 6?
Akimi4 [234]
2(3x - 1) ≥ 4x - 6  Remove the brackets on the left.
6x - 2  ≥ 4x - 6     Subtract 4x from both sides.
6x - 4x - 2 ≥ - 6    combine like terms on the left.
2x - 2 ≥ - 6           Add 2 to both sides
2x ≥ - 6+ 2
2x ≥ -4                 Divide by 2
x ≥ - 4/2
x ≥ - 2  answer <<<<<<<<

Check
2(3*-2 - 1) ≥ 4x - 6
2(-6 - 1) ≥ 4(-2) - 6
2(-7) ≥- 8 - 6
- 14 = - 14 and this checks.

4 0
3 years ago
What are three ways in which heat is transferred
Sedaia [141]

Conduction, Convection, Radiation.

Hope this helps!

-Payshence

6 0
3 years ago
A Cephied is a star that belongs to a class of yellow supergiant pulsating stars; these stars vary periodically in brightness, a
mihalych1998 [28]

Luminosities

Thanks to this relationship between period and luminosity, a Cepheid provide a practical and accurate method to evaluate their absolute magnitude. Once this is known, it is possible to know the distance of the Cepheid, calculating the difference with respect to the apparent magnitude.

4 0
3 years ago
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