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3 years ago

How does the theory of relativity explain the gravity exerted by massive objects?

Physics

1 answer:

Maslowich3 years ago

8 0

(D)

Explanation:

The more massive an object is, the greater is the curvature that they produce on the space-time around it.

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Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?

galben [10]

The answer is C. replacement

This would be an example of a replacement type of reaction. As the iron is replaced with the aluminum in the reaction.

!!Hope this helped, If so will you awarde me with Brainliest, and have a great day!!

7 0

3 years ago

Read 2 more answers

The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a jump, this insect can acceler

Kay [80]

Answer:

Part a)

$v_f = 4 m/s$

Part b)

$t = 0.001 s$

Part c)

$d = 0.815 m$

Explanation:

Part a)

As we know that initially the grass hopper is at rest at the ground position

Now the acceleration is given as

$a = 4000 m/s^2$

distance of the legs that it stretched is given as

$s = 2.0 mm$

so we have

$v_f^2 - v_i^2 = 2 a d$

$v_f^2 - 0 = 2(4000)(0.002)$

$v_f = 4 m/s$

Part b)

time taken to reach this speed is given as

$v_f - v_i = at$

$4 - 0 = 4000 t$

$t = 0.001 s$

Part c)

as the grass hopper reach the maximum height its final speed would be zero

so we will have

$v_f^2 - v_i^2 = 2 a d$

$0 - 4^2 = 2(-9.81) d$

$d = 0.815 m$

5 0

3 years ago

A roster lays an egg on top of a barn,the wind is blowing west,which way does the egg roll?

pogonyaev

Hahahahhahaha A ROSTER NEVER LAYS THE EGGS IT IS THE HEN THAT LAYS THE EGGS.....ITS LIKE MEN GETTING PREGNANT LOL

7 0

3 years ago

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Do you need a reason to live? If you do what is your reason for living?

lina2011 [118]

Every one has a reason in life. You may not know what it is just yet, but you do.

6 0

3 years ago

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What is the magnetic field at the center of a circular loop

Elan Coil [88]

Answer:

The magnetic field at the center of a circular loop is $3.14\times10^{-5}\ T$ .

Explanation:

Given that,

Radius = 4.0 cm

Current = 2.0 A

We need to calculate the magnetic field at the center of a circular loop

Using formula of magnetic field

$B = \dfrac{I\mu_{0}}{2r}$

Where, I = current

r = radius

Put the value into the formula

$B =\dfrac{2.0\times4\pi\times10^{-7}}{2\times4.0\times10^{-2}}$

$B =0.00003141\ T$

$B=3.14\times10^{-5}\ T$

Hence, The magnetic field at the center of a circular loop is $3.14\times10^{-5}\ T$ .

7 0

3 years ago