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ehidna [41]
3 years ago
7

L 5.1.5 Quiz: Electromagnetic Forces

Physics
2 answers:
dmitriy555 [2]3 years ago
8 0

Answer: B

Explanation:  According to Coulomb: The same charges repel each other; unlike charges attract. Therefore, two negative or positives charges repel one another, while a positive charge attracts a negative charge.

We see that the only diagram who shows two like charges and their Electromagnetic Forces is B

padilas [110]3 years ago
4 0

Answer: B

According to Coulomb: Like charges repel each other; unlike charges attract. Thus, two negative or positives charges repel one another, while a positive charge attracts a negative charge.

We see that the only diagram who shows two like charges and their Electromagnetic Forces is B

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A 10.0 L tank contains 0.329 kg of helium at 28.0 ∘C. The molar mass of helium is 4.00 g/mol . Part A How many moles of helium a
nadya68 [22]

Answer:

82.25 moles of He

Explanation:

From the question given above, the following data were obtained:

Volume (V) = 10 L

Mass of He = 0.329 Kg

Temperature (T) = 28.0 °C

Molar mass of He = 4 g/mol

Mole of He =?

Next, we shall convert 0.329 Kg of He to g. This can be obtained as follow:

1 Kg = 1000 g

Therefore,

0.329 Kg = 0.329 Kg × 1000 g / 1 Kg

0.329 Kg = 329 g

Thus, 0.329 Kg is equivalent to 329 g.

Finally, we shall determine the number of mole of He in the tank. This can be obtained as illustrated below:

Mass of He = 329 g

Molar mass of He = 4 g/mol

Mole of He =?

Mole = mass / molar mass

Mole of He = 329 / 4

Mole of He = 82.25 moles

Therefore, there are 82.25 moles of He in the tank.

8 0
3 years ago
Tides are caused by the force of gravity from the sun and moon acting on Earth.
vfiekz [6]
Yes that answer is correct because sometimes tides cause waves to happen
4 0
3 years ago
Read 2 more answers
Question is In Image Provided
KatRina [158]

Answer:

i would think the first two, but i cant be sure.

Explanation:

7 0
3 years ago
Blood plasma volume for adults is about 3.1 liters. It has a density of 1.020 gml. How many pounds of blood plasma are in your b
kari74 [83]

Answer:

mass is 6.97 pounds

Explanation:

given data

volume = 3.1 liters

density = 1.020 g/ml = 1.02 kg/l

to find out

How many pounds of blood plasma

solution

we know mass formula from density that is

density = mass / volume

so

mass = density × volume    ...............1

so put all value to get mass

mass = 1.02 × 3.1

mass = 3.162 kg

mass = 3.162  × 2.205 pounds

so mass is 6.97 pounds

6 0
3 years ago
An airplane starts from rest and reaches a takeoff velocity of 60.0m/s due north in 4.0 s. How far has it traveled before takeof
Blizzard [7]
240 meters that's it
7 0
3 years ago
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