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xeze [42]
3 years ago
13

Which of these waves cannot travel in a vacuum?

Physics
2 answers:
Nana76 [90]3 years ago
8 0
Sound waves is the right answer i took the test

gayaneshka [121]3 years ago
4 0
Light. The black hole is a vacuum, and not even light can escape it's suction
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If the mass of a pendulum is increased (with other factors controller), would the period (time) decrease or stay the same?
Akimi4 [234]
The period of the pendulum depends only on the length from the pivot to the "center of mass". So if the string has no mass, then the amount of mass on the end doesn't make any difference.
But if the pendulum is suspended on, say, a chain with mass, then the more mass on the bottom, the lower the center of mass is, and the longer the period is.
8 0
4 years ago
Don’t get it hsnnakslldioksksk
bogdanovich [222]

Answer:

D. momentum

Explanation:

Momentum is the product of velocity and mass which is the two variables the paragraph talked about.

7 0
3 years ago
A car moving with constant acceleration covers the distance between two points 180 m apart in
patriot [66]

distance = 180m

time = 6 secs

velocity = 45m/s

s= ut+ 1/2at²

2s=2ut+at²

2s-2ut= at²

2(180)-2(25)(6) =a(6)²

60=36a

1.66666 m/s² = a

6 0
3 years ago
explain why astronauts around the earth either in spaceship, a space station, or on a spacewalk appear to be weightless but are
IrinaK [193]

Answer:

Zero gravity

Explanation:

Astronauts around the earth either in spaceship, a space station or on a space walk appear to be weightless because of the zero gravity in such environment.

Weight is a function of the mass and acceleration due to gravity a body has.

   Weight  = mass  x  acceleration due to gravity

In a place where acceleration due to gravity is 0, the weight would be zero and a person would appear to be weightless.

6 0
3 years ago
A pulse traveled the length of a stretched spring the pulse transferred...A)energy only B)mass only C)both energy and mass D) ne
xz_007 [3.2K]

Answer:

A

Explanation:

So a pulse is a part of a mechanical wave, and mechanical waves are energy transfer trough some medium, in this case a stretched spring. So the correct answer is (A) energy only. The pulse cant be transferred into mass.

8 0
3 years ago
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