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1 year ago

Which type of electromagnetic wave has less energy than a microwave?

1 answer:

7 0

Radio waves.

From lowest to highest it is radio wave, microwave, infrared, visible light, ultraviolet, x ray, and then gamma.

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Reaction of acetylene with silver nitrate

MAVERICK [17]

Answer:

*boom*

Explanation:

..... ;) jkjk .......

5 0

3 years ago

Why does ice get colder when you melt it?

galina1969 [7]

It doesn't?

Heat transfers from hot objects to cold objects and for ice to melt it has to increase the temperature.

8 0

3 years ago

What observations can you make about this group of people? Name one inference you can make from your observations.

Stells [14]

Answer:

no no no who are these some look good but are black what is this

7 0

2 years ago

Read 2 more answers

Precision Problems:

Lorico [155]

Answer:

$Precision = 2.70 \± 0.1\ cm$

Explanation:

Given

The data in the table

Required

Follow the steps appended to the question;

Step 1: Calculate the Mean or Average

Mean = Summation of lengths divided by number of teams;

$Mean = \frac{2.65 + 2.75 + 2.80 + 2.77 + 2.60 + 2.65 + 2.68}{7}\ cm$

$Mean = \frac{18.9}{7}\ cm$

$Mean = 2.70\ cm$

Step 2: Get The Range

$Range = Highest - Lowest$

$Range = 2.80cm - 2.60cm$

$Range = 0.2\ cm$

Step 3: Divide Range by 2

$Approximate\ Range = \frac{1}{2}Range$

$Approximate\ Range = \frac{1}{2} * 0.2\ cm$

$Approximate\ Range = 0.1\ cm$

Step 4: Determine the Precision

$Precision = Average \± Approximate\ Range$

Substitute 2.70 for Average and 0.1 for Approximate Range

$Precision = 2.70 \± 0.1\ cm$

4 0

3 years ago

The kinetic energy of an object can be determined using the equation , where is the kinetic energy, is the mass, and is the spee

Cloud [144]

Answer:

0.5kg

Explanation:

Given parameters:

Speed of the object = 12m/s

Kinetic energy = 36J

Unknown:

Mass of the object = ?

Solution:

Kinetic energy is the energy due to the motion of a body. It is mathematically expressed as;

K.E = $\frac{1}{2}$ m v²

Insert the parameters and solve;

36 = $\frac{1}{2}$ x m x 12²

36 = 72m

m = 0.5kg

8 0

3 years ago