2 years ago

This table shows data collected by three devices: a thermometer on a weather balloon, a surface thermometer, and a barometer.

Physics

1 answer:

Margaret [11]2 years ago

6 0

That would be “colder weather with no precipitation”

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The net effect of each cycle of the sodium-potassium pump is to ____.? ?decrease the number of positively charged ions within th

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The correct answer may be A

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3 years ago

Radioactive isotopes can be used to find the age of rocks, fossils, or other artifacts. Carbon-14 has a half-life of 5,730 years

bazaltina [42]

Answer:

1/8 = (1/2)^3

This implies the sample has decayed for 3 half lives

3 * 5730 yrs = 17,200 years

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2 years ago

1. Two-point charges, QA = +8 μC and QB = -5 μC, are separated by a distance r = 10 cm. What is the magnitude and direction of t

tiny-mole [99]

Explanation:

Charges, $q_1=8\ \mu C=8\times 10^{-6}\ C$

$q_2=-5\ \mu C=-5\times 10^{-6}\ C$

The distance between charges, r = 10 cm = 0.1 m

We need to find the magnitude and direction of the electric force. It is given by :

$F=\dfrac{kq_1q_2}{r^2}\\\\F=\dfrac{9\times 10^9\times 8\times 10^{-6}\times 5\times 10^{-6}}{(0.1)^2}\\\\F=36\ N$

So, the required force between charges is 36 N and it is towards positive charge i.e. +8 μC.

6 0

3 years ago

How do you find input energy with only the efficiency and output energy given?

iris [78.8K]

Answer:

power output/transformer efficiency multiply by 100%

Explanation:

derrive the formula from efficiency=power output/power input multiply by 100%

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3 years ago

As you slide a heavy box across the floor, friction applies a force of -100 N

nirvana33 [79]

Answer:

A -500J

Explanation:

because W=Fs

100 × 5 = 500

4 0

3 years ago

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