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sertanlavr [38]

3 years ago

9

Which set of elements are most similar in chemical behavior

1 answer:

MAVERICK [17]3 years ago

8 0

Answer:

The elements in the first column of the Periodic Table (other than hydrogen) aka Group 1A metals, or alkali metals.

Explanation:

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Given the diagram showing gas molecules in different containers, a reasonable inference could be made that there is a relationsh

Anvisha [2.4K]

Answer:

The correct answer should be A

Explanation:

4 0

3 years ago

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Compare and contrast the function of the thymus and spleen<br> needed asap

Helga [31]

Answer:The thymus stores and produces T lymphocytes and also releases hormones which aid in the maturation of the T lymphocytes while the spleen stores and release lymphocytes as well as macrophages which eradicate foreign substances that may harm the body.

Explanation:

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3 years ago

Just after two identical point charges are released when they are a distance D apart in outer space, they have an acceleration a

Darya [45]

Answer:

d) 4a

Explanation:

r = Distance

Electrostatic force is given by

$F=\dfrac{kq_1q_2}{r^2}$

$ma=\dfrac{kq_1q_2}{r^2}$

It can be seen that the force is inversely proportional to distance

$a\propto \dfrac{1}{r^2}$

If the distance is reduced

$\dfrac{a_1}{a_2}=\dfrac{r_2^2}{r_1^2}\\\Rightarrow \dfrac{a_1}{a_2}=\dfrac{(\dfrac{d}{2})^2}{d^2}\\\Rightarrow \dfrac{a_1}{a_2}=\dfrac{1}{4}\\\Rightarrow a_2=4a_1$

So, the new acceleration will be four times the old acceleration

The answer is d) 4a

7 0

4 years ago

A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground

pogonyaev

T = 3.5 secs

Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s

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4 years ago

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In which of the following cases would you feel weightless?

Dafna11 [192]

Falling from an airplane.

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3 years ago

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