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3 years ago

When should the power switch be in the off position? Check all that apply

Physics

2 answers:

Pavlova-9 [17]3 years ago

3 0

Explanation:

Question: where is teh example

Kisachek [45]3 years ago

3 0

Answer:

While building the circuits

When modifying any connections

Explanation:

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Plants release water vapor into the atmosphere through the process called _____.

timofeeve [1]

The process is called transpiration <span />

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4 years ago

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Explain what happens with the light when you see black and white opaque objects

maksim [4K]

Answer:

When white light strikes a colored opaque object, some colors of light are absorbed and some are reflected. ... Some of the colors are absorbed and some are reflected. When white light shines on a white object, all colors are reflected. When white light strikes a black object, all colors are absorbed.

Explanation:

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3 years ago

Read 2 more answers

(NEED HELP BADLY)

spin [16.1K]

Answer:

The answer to your question is below

Explanation:

Data 1

mass 1 = 250

mass 2 = 250 kg

gravity constant = 6.67 x 10⁻¹¹ Nm²/kg²

distance = 8 m

Formula

$F = G\frac{m1m2}{r^{2} }$

Substitution

$F = 6.67 x 10^{-11} \frac{250 x 250}{8^{2} }$

Result

F = 0.000000065 N

Data 2

mass 1 = 1000 kg

mass 2 = 1000 kg

distance = 5 m

Substitution

$F = 6.67 x 10^{-11} \frac{1000 x 1000 }{5^{2} }$

Result

F = 0.000002667 N

8 0

4 years ago

One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching to

yaroslaw [1]

Complete Question:

One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of 11.5 m/s in 2.24 s, what will be his total time?

Answer:

total time = 6.24 s

Explanation:

Using the equation of motion:

v = u + at

initial speed, u = 0 m/s

v = 11.5 m/s

t = 2.24 s

11.5 = 0 + 2.24a

a = 11.5/2.24

a = 5.13 m/s²

For the total time spent by the sprinter:

s = ut + 0.5at²

100 = 0.5 * 5.13 * t²

t² = 100/2.567

t² = 38.957

t = √38.957

t = 6.24 s

3 0

4 years ago

T/-15=-3. what is t?

sweet-ann [11.9K]

Answer:

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4 0

2 years ago