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Musya8 [376]
3 years ago
10

Define :density٬archimedes principle

Physics
1 answer:
olga2289 [7]3 years ago
5 0

Answer:

density is defined as the amount of mass contained in unit volume of a body .its si unit is kg/m*3

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A motor develops 80 kW of power as it lifts a loaded elevator 20.5 m in 45 s. How much force does the motor exert? *
yuradex [85]

Answer:

F=1.3⋅105N

Explanation:

It's common knowledge.

7 0
3 years ago
Sound waves can be modeled by the equation of the form y=20sin(3t+theta). Determine what type of interference results when sound
Mariulka [41]

Answer:

go to the link quizzlet it will give you tha answer

Explanation:

4 0
3 years ago
A 60 W lightbulb is on for 24 hours. A stereo with a power of 150 W is on for 2
Helen [10]

Answer:

B) The lightbulb uses 4,104,000 J more than the stereo.

6 0
3 years ago
A 150-W lamp is placed into a 120-V ac outlet. What is the peak current?
devlian [24]

Answer:

Explanation:

Formula

W = I * E

Givens

W = 150

E = 120

I = ?

Solution

150 = I * 120   Divide by 120

150/120 = I

5/4  = I

I = 1.25

Note: This is an edited note. You have to assume that 120 is the RMS voltage in order to go any further. That means that the peak voltage is √2 times the size of 120. The current has the same note applied to it. If the voltage is its rms value, then the current must (assuming the properties of the bulb do not change)

On the other hand, if the voltage is the peak value at 120 then 1.25 will be correct.

However I would go with the other answerer's post and multiply both values by  √2

3 0
3 years ago
Read 2 more answers
What is the difference between a data table and a graph?
alexandr402 [8]

At the same time, however, you get less detail or less precision in a chart or graph than you do in the table. Imagine the difference between a table of sales figures for a ten-year period and a line graph for that same data. You get a better sense of the overall trend in the graph but not the precise dollar amount.

3 0
3 years ago
Read 2 more answers
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