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2 years ago

In the diagram below astronauts on different planets are dropping apples.

Physics

2 answers:

mixer [17]2 years ago

4 0

Answer:

jupiter

Explanation

it says in the description that is 2 1/2 times earth's gravity thingy. you gotta read the question

Keith_Richards [23]2 years ago

3 0

The apple would weigh the most on jupiter since it has 2 and 1/2 the amount of gravity as earth

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radio waves travel at the speed of light, 3 x 10^8 m/s. the wavelength of a radio wave record is 200,000,000 hz is?

ludmilkaskok [199]

Answer:

1.5m

Explanation:

Speed of waves is given as the product of the wavelength and frequency. Sometimes when frequency is not given but the period is given, we get the frequency as the reciprocal of the period. The speed of waves is given in m/s, wavelength in m while frequency in Hz.

Speed, s= fw and making w the subject of formula,

$w=\frac {s}{f}$

Substituting 300, 000, 000 m/s for s and 200, 000, 000 for f then we obtain that

$w=\frac {300000000}{200000000}=1.5 m$

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2 years ago

A mass m is tied to an ideal spring with force constant k and rests on a frictionless surface. The mass moves along the x axis.

7nadin3 [17]

Answer: $x=\frac{x_m}{\sqrt{2}}$

Explanation:

Given

initially mass is stretched to $x_m$

Let k be the spring Constant of spring

Therefore Total Mechanical Energy is $\frac{kx_m^2}{2}$

Position at which kinetic Energy is equal to Elastic Potential Energy

$K=\frac{mv^2}{2}$

$U=\frac{kx^2}{2}$

it is given

$k=U$

thus $2U=\frac{kx_m^2}{2}$

$2\times \frac{kx^2}{2}=\frac{kx_m^2}{2}$

$2x^2=x_m^2$

$x=\frac{x_m}{\sqrt{2}}$

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3 years ago

Why are there no hurricanes in Alaska?

saul85 [17]

There are no hurricanes in Alaska because it is at the edge of the atmoshpere.

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3 years ago

Read 2 more answers

What is physical measurement? in Science

Anvisha [2.4K]

Answer:

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2 years ago

How many test tubes of blood equal a pint?

irina1246 [14]

It would take 57 test tubes to equal a pint

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2 years ago