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3 years ago

9

Since moment of inertia is a scalar quantity, a compound object made up of several objects joined together has a moment of inert

ia which is the scalar sum of the individual moments of inertia.

1 answer:

Gwar [14]3 years ago

8 0

What is the question?

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How many protons are in the nucleus of an aluminum atom

zlopas [31]

The atomic number of Aluminum is 13. The atomic number represents the number of protons in an atom.

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3 years ago

Read 2 more answers

At the lowest point in a vertical dive (radius = 0.58 km), an airplane has a speed of 300 km/h which is not changing. Determine

murzikaleks [220]

Answer:

The centripetal acceleration is $a = 11.97 \ m/s^2$

Explanation:

From the question we are told that

The radius is $r = 0.58 \ km = 0.58 * 1000 = 580 \ m$

The speed is $v = 300\ km /hr = \frac{300 *1000}{1 * 3600 } = 83.33 \ m/s$

The centripetal acceleration of the pilot is mathematically represented as

$a = \frac{v^2 }{r}$

substituting values

$a = \frac{(83.33)^2 }{580}$

$a = 11.97 \ m/s^2$

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3 years ago

Charged particles posses a region of influence also called a (an)

Delvig [45]

Answer:(c)

Explanation:

Charge particle posses a region of influence called a filed i.e. Electric field.

It is a region around the charged particle such that other charge particle experiences force due to this field. The nature of force is decided by the charge on the particle creating an electric field.

For a positive charge, electric field lines emerge out of it, and for a negative charge, it acts as radially inwards.

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3 years ago

Caitlin is riding her bike. Which of the following statements tells what is happening?

gtnhenbr [62]

What are the following statements? If there's one that mention a description of current action, or motion, that's your answer.

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4 years ago

A current of 200 mA through a conductor converts 40 joules of electrical energy into heat in 30 second

Komok [63]

Answer:

V = 6.65 [volt]

Explanation:

First, we must calculate the power by means of the following equation, where the voltage is related to the energy produced or consumed in a given time.

$P=E/t\\P = 40/30\\P = 1.33[s]$

Using the power we can calculate the voltage, by means of the following equation that relates the voltage to the current.

$P=V*I$

where:

V = voltage [Volts]

I = current = 200 [mA] = 0.2 [A]

$V = 1.33/0.2\\V = 6.65 [volt]$

8 0

3 years ago