Three-dimensional ____ programs allow designers to rotate designs of 3-d objects to view them from any angle.

Which of the following illustrates 2 resistors in a series circuit?

umka2103 [35]

Explanation :

An electrical circuit can be either connected in series or parallel.

Series combination: The current flowing in each resistor is the same and the equivalent resistance is given by :

$R{eq}=R_1+R_2+R_3+.................+R_n$

Parallel combination: The voltage for all components in the parallel combination is the same. The equivalent resistance is given by :

$\dfrac{1}{R_{eq}}=\dfrac{1}{R_{1}}+\dfrac{1}{R_{2}}+\dfrac{1}{R_{3}}......................+\dfrac{1}{R_{n}}$

So, our of given options the correct one is (b) because the current flowing in both the resistors is the same.

5 0

4 years ago

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Use dimensional analysis to determine how the linear acceleration a in m/s2 of a particle traveling in a circle depends on some,

astraxan [27]

I have to say, i love this kind of problems.

So, we got the linear acceleration, as we all know, linear the acceleration its, in dimensional units:

$[a]=[\frac{distance}{time^2}]$ .

Now, we got the radius

$[r] = [distance]$

the angular frequency

$[\omega] = \frac{1}{s}$

and the mass

$[m]=[mass]$ .

Now, the acceleration doesn't have units of mass, so it can't depend on the mass of the particle.

The distance in the acceleration has exponent 1, and so does in the radius. As the radius its the only parameter that has units of distance, this means that the radius must appear with exponent 1. Lets write

$a \propto r$ .

The time in the acceleration has exponent -2 As the angular frequency its the only parameter that has units of time, this means that the angular frequency must appear, but, the angular frequency has an exponent of -1, this means it must be squared

$a \propto r \omega^2$ .

We are almost there. If this were any other problem, we would write:

$a = A r \omega^2$

where A its an dimensionless constant. Its common for this constants to appears if we need an conversion factor. If we wanted the acceleration in cm/s^2, for example. Luckily for us, the problem states that there is no dimensionless constant involved, so:

$a = r \omega^2$

5 0

3 years ago

To Which of the following represents the relative order of wavelengths from least

Alex787 [66]

Answer:

A) ultraviolet light ---> violet light ----> red light-----> infrared light

Explanation:

We know that the electromagnetic spectrum with the wavelength from least to greatest is (also refer attachment)

gamma ray
X- rays
Ultra-violet
Visible

Violet

Indigo

Blue

Green

Yellow

Orange

Red

Infra-red

Microwave
Radio wave

Hence the relative order of wavelengths from least to greatest in the electromagnetic spectrum is

A) ultraviolet light ---> violet light ----> red light-----> infrared light

5 0

4 years ago

Which of the following best explains how earth is heated through radiation

lawyer [7]

Answer:

The sun touches earth during daytime and the suns rays heat our earth giving us heat. The sun heating the earth is also considered radiation.

Explanation:

6 0

3 years ago

What is the dependent variable in an experiment that shows how the volume of a gas changes with change in temperature?

Natali5045456 [20]

Answer:

Volume of gas

Explanation:

6 0

3 years ago