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prisoha [69]
3 years ago
7

How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?

Physics
1 answer:
RSB [31]3 years ago
3 0
<span>Heat comes from stove flame to the sauce pan by radiation through infrared energy, heat conducts the metal of the sauce pan; Convection brings cool water to the hot surface at the bottom of the hot sauce pan until all or most of the water is hot enough to boil.</span>
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7.4 m = _________________________ mm<br><br> 7.4x 10-3 <br> 74 <br> 7.4 x 103 <br> 7.4 x 104
jeyben [28]
7.4 m is equal to 7400 mm

This would make 7.4 * 10^3 the correct answer
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if a sea star egg is taken from the ocean and put into Elk Lake would you expect the egg to shrink swell are stay the same ?
mafiozo [28]
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One heater uses 310 W of power when connected by itself to a battery. Another heater uses 180 W of power when connected by itsel
igor_vitrenko [27]

Answer:

55.8W

Explanation:

P= V^2/R

R= V^2/P

For series connection

Req= R1+ R2= V^2/310 + V^2/180

R=V^2/P= V^2/310 + V^2/180

But V^2 will cancel out

P= 1/(1/310 + 1/180)

P= 55.8W

8 0
2 years ago
Read 2 more answers
Mary has a mass of 40 kg and sprints at 1 m/s. How much kinetic energy does she have?
Sav [38]

Answer:

20 J

Explanation:

Kinetic energy is given as half of the product of mass and the square of velocity of an object:

KE = \frac{1}{2}mv^2

where m = mass = 40 kg

v = velocity = 1 m/s

Hence, Mary's kinetic energy is:

KE = \frac{1}{2} * 40 * 1^2

KE = 20 * 1 = 20 J

She has a kinetic energy of 20 J.

8 0
3 years ago
Outside the Solar System is there any gravitational pull from the Sun?
babunello [35]

Answer:

our sun is one of the least 100 billion stars in the milky way a spiral galaxy about 100000 light years across

6 0
2 years ago
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