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3 years ago

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An object is released from rest on a planet that has no atmosphere. The object falls freely for 2.31 m in the first second. What

is the magnitude of the acceleration due to gravity on the planet? Answer in units of m/s^2 .

1 answer:

Ede4ka [16]3 years ago

4 0

s=1/2 a t^2

2.31 = 0.5xa

a=4.62m/s^2

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The second-order bright fringe in a single-slit diffraction pattern is 1.35 mm from the center of the central maximum. The scree

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Answer:

The wavelength is 754.2 nm.

Explanation:

Given that,

Diffraction pattern y= 1.35 mm

Width = 0.838 mm

Distance D= 75 cm

We need to calculate the wavelength

Using formula of diffraction pattern

$y=\dfrac{m\lambda D}{d}$

$\lambda=\dfrac{yd}{mD}$

Where, y = diffraction pattern

m = order

d = width

D = distance

Put the value into the formula

$\lambda=\dfrac{1.35\times10^{-3}\times0.838\times10^{-3}}{2\times75\times10^{-2}}$

$\lambda=7.542\times10^{-7}\ m$

$\lambda=754.2\ nm$

Hence, The wavelength is 754.2 nm.

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3 years ago

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vfiekz [6]

Answer:

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3 years ago

Will give correct answer brainliest

Tasya [4]

Answer:

the answer is a

Explanation:

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3 years ago

How many newtons of force will 2 pieces of paper have if one has a charge of .2 Coilombs and the other has a charge of .3 Coulom

sdas [7]

1) The electrostatic force between the two pieces of paper is $2.16\cdot 10^{13} N$

2)

If the charges of the two pieces of paper are both + or both -, they repel each other
If the charges of one piece of paper is positive and the other one is negative, they attract each other

Explanation:

1)

The electrostatic force between two charged objects is given by Coulomb's law:

$F=k\frac{q_1 q_2}{r^2}$

where:

$k=8.99\cdot 10^9 Nm^{-2}C^{-2}$ is the Coulomb's constant

$q_1, q_2$ are the two charges

r is the separation between the two charges

In this problem, we have the following situation:

$q_1 = 0.2 C$ is the charge on the first piece of paper

$q_2 = 0.3 C$ is the charge on the second piece of paper

$r=0.005 m$ is their separation

Substituting into the equation, we find the magnitude of the electrostatic force between them:

$F=k\frac{q_1 q_2}{r^2}=(8.99\cdot 10^9) \frac{(0.2)(0.3)}{(0.005)^2}=2.16\cdot 10^{13} N$

2)

The electrostatic force can be either attractive of repulsive, depending on the relative sign of the charges of the objects involved.

In particular, we have:

If the two charges have same sign (both positive or both negative), the force between them is repulsive
If the two charges have opposite sign (one positive and one negative), the force between them is attractive

Therefore, in this case:

If the charges of the two pieces of paper are both + or both -, they repel each other
If the charges of one piece of paper is positive and the other one is negative, they attract each other

Learn more about electric force:

brainly.com/question/8960054

brainly.com/question/4273177

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4 years ago

A glacier can cause a change in landforms as it picks up rocks and moves the rock to new locations. How fast does the glacier ha

STatiana [176]

Answer:

30 meters/day.

Explanation:

Glacial motion can be fast up to 30 meters/day or slow up to 0.5 m/year on small glaciers moving the impact on local landforms. If the glacial motion goes up to 30 meters/day, more fast change occurs in the local landforms while on the other hand, if the glacial motion goes up to 0.5 m/year, very slow change occurs in the local landforms. So glacial motion has a direct affect on the changes occurs in the local landforms.

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