Ask question

Ask question

All categories

4 years ago

11

Explain the method to measure the external diameter of a sphere

1 answer:

Serjik [45]4 years ago

8 0

Answer:

Sphere is a geometrical object in dimensional space that surface of a circle and ball.

Explanation:

Sphere is that the circular objects in the two dimensional space (1) circle

(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.

Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,

sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.

The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.

You might be interested in

Please List 3 categories of properties used to classify solids.

icang [17]

Electrical conductivity
Magnetism
Texture

Hope this helps!

8 0

3 years ago

An electric motor has an effective resistance of 22 22 and an inductive reactance of 72 12 when working under load. The voltage

Alecsey [184]

Answer:

Current amplitude, I = 5.57 A

Explanation:

It is given that,

Effective resistance, R = 22 ohms

Inductive reactance, L = 72 ohms

Voltage of the alternating source, V = 420 volt

The total impedance of the RL circuit is given by :

$Z=\sqrt{R^2+L^2}$

$Z=\sqrt{(22)^2+(72)^2}$

Z = 75.28 ohms

From Ohm's law,

$V=I\times Z$

$I=\dfrac{V}{Z}$

$I=\dfrac{420}{75.28}$

I = 5.57 A

So, the current amplitude of the electric motor is 5.57 A. Hence, this is the required solution.

6 0

4 years ago

3. A car travels 800 miles in 6 hours. What was the car’s average speed? Be sure to include units in your answer

vredina [299]

Answer:

133.33 miles per hour

Explanation:

There are many students who can not get answers step by step and on time

So there are a wats up group where you can get help step by step and well explained.

5 0

3 years ago

A platinum resistance thermometer has a resistance of 11.50 ohms at 0 oC and 17.35 ohms at 100 oC. Assuming that the resistance

STatiana [176]

Answer:

$34.2^{\circ}C$

Explanation:

The resistance increases linearly with the temperature - so we can write:

$\Delta R = k \Delta T$

where

$\Delta R$ is the change in resistance

k is the coefficient of proportionality

$\Delta T$ is the variation of temperature

In the first part of the problem, we have

$\Delta R = 17.35 - 11.50 =5.85\Omega$

$\Delta T = 100 -0 = 100^{\circ}C$

So the coefficient of proportionality is

$k=\frac{\Delta R}{\Delta T}=\frac{5.85}{100}=0.0585 \Omega ^{\circ}C^{-1}$

When the resistance is $R=13.50\Omega$ , the change in resistance with respect to the resistance at zero degrees is

$\Delta R' = 13.50-11.50 = 2.00 \Omega$

So we can find the change in temperature as:

$\Delta T' = \frac{\Delta R}{k}=\frac{2.00}{0.0585}=34.2^{\circ}$

So the new temperature is

$T_f = T_0 + \Delta T' = 0+34.2 = 34.2^{\circ}C$

4 0

3 years ago

Which of the following statements about nuclear power is true?

kirill115 [55]

I think the answer may be d I'm not completely sure

6 0

3 years ago

Read 2 more answers