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snow_tiger [21]
4 years ago
12

A change in the core would have the greatest effect on what?

Chemistry
1 answer:
Misha Larkins [42]4 years ago
6 0
<span>The magnetic field of the Earth serves a useful purpose in deflecting Solar radiation. Without the magnetic field there is much more charged-particle radiation striking the surface. The auroras would occur everywhere instead of at the magnetic poles. Compass needles wouldn't work, and then they would flip direction.. The magnetic field IS DECREASING and could go to zero and reverse sometime in the next few tens-of-thousands of years.</span>
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An object has a mass of 10 grams and a volume of 5cm3 what is the density of the object?
lesya692 [45]

Answer:

.0002

Explanation:

3 0
2 years ago
An example of a solid solution is copper true or false
garik1379 [7]
This is false, because copper is an element.
To be solution, it has to have at least 2 different substances. Solid solution of metals is often called alloy. 
4 0
4 years ago
(03.04 MC)<br> What is the formula for sodium nitrite?<br> O NaN<br> O NaN<br> O NaNO2<br> O NaNO3
charle [14.2K]

Answer:

NaNO2 is the formula for sodium nitrite

Explanation:

Check the selected ions chart to find out more in depth.

7 0
4 years ago
Read 2 more answers
1. Calculate the molarity of a sugar solution if 4 liters of the solution contains 8 moles of sugar
klio [65]

Answer:

The molarity of a sugar solution is 2 M.

Explanation:

Molarity is a concentration measure that expresses the moles of solute per liter of solution. In this case it is calculated with the simple rule of three:

4 L of solution--------8 moles of sugar

1 L of solution ------x= (1 L of solution x 8 moles of sugar)/4 L of solution

x=2 moles of sugar---> <em>The solution is 2M</em>

8 0
3 years ago
Americium-241 is used in some smoke detectors. it is an alpha emitter with a half-life of 432 years. how long will it take in ye
kolbaska11 [484]
The amount of substance at a certain time t, At, with half-life of h is determined by the equation,
                          At = (Ao)(0.5)^(t/h)
where Ao is the original amount. 
From the given,
                         At/Ao = 0.45 = (0.5)^(t/432)
The value of t from the equation is 497.67 years. 
4 0
4 years ago
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