3 years ago

A discrete, distinct pattern of specific wavelength against a background of continuous spectrum

Physics

1 answer:

vladimir2022 [97]3 years ago

8 0

answer:

absorption spectrum

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What is the gravitational force between two trucks, each with a masof 2.0x10^4 k

eduard

Answer:

$6.67\cdot 10^{-3} N$

Explanation:

The gravitational force between two objects is given by

$F=G\frac{m_1 m_2}{r^2}$

where

G is the gravitational constant

m1, m2 are the two masses

r is the separation between the two masses

In this problem, we have

$m_1 = m_2 = 2.0 \cdot 10^4 kg$ the mass of each truck

r = 2.0 m is their separation

Substituting,

$F=(6.67\cdot 10^{-11}) \frac{(2.0\cdot 10^4 kg)^2}{(2.0 m)^2}=6.67\cdot 10^{-3} N$

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4 years ago

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3 years ago

Tami is doing experiments on three different unknown solids. She understands that treating them in different manners might resul

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Based on how they each acted in the trials, the substance that would be the most metallic is B.

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A rock is dropped into a well. If you hear a splash 14 seconds later what was its speed

grigory [225]

Answer:

14 seconds

Explanation:

because you dropped it and it takes 14 seconds

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3 years ago

Two identical small charged spheres are a certain distance apart, and each initially experiences an electrostatic force of magni

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Answer:

d) 1/4 F

Explanation:

The magnitude of electrostatic force between stationary charges is described by Coulomb's law. This law states that this force is proportional to the magnitudes of the charges:

$F\propto q_1q_2$

When each of the spheres has lost half its initial charge, we have:

$q_1'=\frac{q_1}{2}\\q_2'=\frac{q_2}{2}$

So, the new electrostatic force is:

$F'\propto q_1'q_2'\\F'\propto \frac{q_1}{2}\frac{q_2}{2}\\F'\propto \frac{q_1q_2}{4}\\F'\propto\frac{1}{4}F$

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4 years ago