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nexus9112 [7]
2 years ago
6

TRUE or FALSE:

Physics
2 answers:
xxTIMURxx [149]2 years ago
7 0
I think it’s true but i’m not too sure
Anit [1.1K]2 years ago
7 0

Answer: True

Explanation: Electromagnetic radiation travels in the form of waves, and while it can travel in a medium, electromagnetic waves actually do not need a medium to travel.

And one of the principles in the physics is that all electromagnetic waves travel at the speed of light, c, in a vacuum, so all electromagnetic waves travel at the same speed in a vacuum (not in materials, different waves can travel at different speeds in some materials), so this is true.

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A man pushes a 60.8 kg crate across a rough surface with an applied force of 125 N and at a CONSTANT SPEED.
Sedbober [7]

Answer: Colby we both dumb if we need brainly lol

Explanation:

8 0
3 years ago
What's your normal body temperature? it may not be 98.6°f, the oft-quoted average that was determined in the nineteenth century.
harkovskaia [24]

(98.6 - 98.2)ºF = .4ºF

.4ºF* 5ºC/9ºF = 0.222 ºC

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3 years ago
Read 3 more answers
What mathematical formula correctly expresses the relationship between force, mass and acceleration? A. m = F + a B. F = m / a C
IRINA_888 [86]

D. F=ma

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3 0
2 years ago
A field measuring 12 meters by 16 meters is to have a brick paver walkway installed all around it, increasing the total area to
kolezko [41]

Answer:

1.5 m

Explanation:

Length. L = 12 m

Width, W = 16 m

Area, A = 12 x 16 = 192 m^2

Let the width of pavement be d.

The new length, L' = 12 + 2d

the new width, W' = 16 + 2d  

New Area, A' = L' x W' = (12 + 2d)(16 + 2d) = 192 + 56 d + 4d^2

Difference in area = A' - A

285 =  192 + 56 d + 4d^2 - 192

93 =  56 d + 4d^2

4d^2 + 56 d - 93 = 0

d = \frac{-56\pm \sqrt{56^{2}+4\times 4\times 93}}{8}

d=\frac{-56\pm 87.72}{8}\

d = 1.5 m

Thus, the width of the pavement is 1.5 m.

6 0
3 years ago
The idea that John Marshall, the first Chief Justice of the Supreme Court, singularly established the principle of judicial revi
____ [38]

Answer:

c. Was an idea created and supported by Congress.

Explanation:

The idea that John Marshall, the first Chief Justice of the Supreme Court, singularly established the principle of judicial review in Marbury v. Madison(1803) was an idea created and supported by Congress.

8 0
3 years ago
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