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3 years ago

Why do astronauts appear to move in slow motion in space?

Physics

1 answer:

bazaltina [42]3 years ago

6 0

Answer:

A few reasons. They are in low gravity environments, so they don't have the advantage of gravity to help move them.

Explanation:

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A 50-cm-long spring is suspended from the ceiling. A 290 g mass is connected to the end and held at rest with the spring unstret

nasty-shy [4]

Answer:

a) Spring Constant $K=18.946\ \rm N/m$

b) Amplitude of the oscillation $A=0.3\ \rm m$

c)Frequency o the oscillation $\nu =1.287\ \rm rev/s$

Explanation:

Given:

Magnitude of the mass, m=0.29 kg

Spring is stretched by x=30 cm

When Finally the mass comes to rest after 30 cm of stretching in spring then work done by all the forces is equal to the change in kinetic Energy of the of the mass

$\dfrac{Kx^2}{2}=mgh\\\dfrac{K\times0.3^2}{2}=0.29\times 9.8\times0.30\\K=18.946\ \rm N/m$

b) The Amplitude of the oscillation is 0.3 m

c) Let Frequency of the oscillation of the mass be $\nu$ which is given by

$\nu=\sqrt{\dfrac{K}{m}}\\\nu=\dfrac{1}{2\pi}\sqrt{\dfrac{18.946}{0.29}}\\\nu=1.287\ \rm rev/s$

8 0

3 years ago

Newspapers used as covers to keep out the cold were called _________.

Nata [24]

The answer is hoover blankets♥️

5 0

3 years ago

Which equation best summarizes Newton’s 2nd law:

zepelin [54]

Option B makes best sense, correct me if i’m wrong

7 0

3 years ago

While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find th

Zepler [3.9K]

Answer:

$v=3.47m/s$

Explanation:

The speed is by definition the distance traveled divided over the time it takes to travel that distance. In this case, this distance is the circumference of the wheel, so we have:

$v=\frac{C}{t}=\frac{2\pi r}{t}$

where we have written the circumference in terms of its radius.

For our values we then obtain the value:

$v=\frac{2\pi r}{t}=\frac{2\pi (16m)}{(29s)}=3.47m/s$

5 0

3 years ago

What force does it take to accelerate a 7.2 kg object 3.0 m/s^2.

grin007 [14]

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 7.2 × 3 = 21.6

We have the final answer as

Hope this helps you

3 0

2 years ago