2 years ago

The radius of an atom can be measured directly?

Physics

2 answers:

SVETLANKA909090 [29]2 years ago

5 0

False an atom can not be measured directly

Marrrta [24]2 years ago

4 0

The radius of an atom can not be measured directly sir. So false

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To practice problem-solving strategy 26.1 resistors in series and parallel. two bulbs are connected in parallel across a source

hichkok12 [17]

Emf e = 11
r 1 = 3.0
r 2 = 3.0
r 3 = ?

The two in parallel are equivalent to 3 • 3/6 = 1.5 Ω
To have 2.4 volts across them, the current is I = 2.4/1.5 = 1.6 amps. and the unknown R = (11–2.4) / 1.6 = 5.375 Ω or 5.4 Ω

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2 years ago

An insect meanders across a sidewalk. The insect moves 15cm to the right, 10cm up the sidewalk and 8cm to the left. What is the

IRISSAK [1]

Answer:12.206 cm, $\theta =54.99^{\circ}$

Explanation:

Given

Insect walks 15 cm to the right

so its position vector is $r_1=15i$

Now it moves 10 cm up so its new position vector

$r_2=15i+10j$

Now it moves 8 cm left so its final position vector is

$r_3=15\hat{i}+10\hat{j}-8\hat{i}=7\hat{i}+10\hat{j}$

so its displacement is given by

$|r_3|=\sqrt{7^2+10^2}=\sqrt{149}=12.206 cm$

For direction, let \theta is the angle made by its position vector with x axis

$tan\theta =\frac{10}{7}=1.428$

$\theta =54.99^{\circ}$

8 0

2 years ago

Which is an example of a decomposer a hawk a mouse a flower or a mushroom

Alika [10]

A mushroom is a decomposer

8 0

3 years ago

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A metal has a mass of 53.7 grams and displaces 6.2 ml of water. Determine the density of the metal.

attashe74 [19]

Answer:

8.66129032258 g/ml

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Montano1993 [528]

Answer:

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Explanation:

Provided the mirror is vertical and you are standing upright.

It could be most any altitude if the mirror is allowed any orientation.

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2 years ago