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4 years ago

The label on a large box of cereal says that it contains 3 lb, 6 oz of cereal. What is another way to express this weight?

Physics

2 answers:

Fiesta28 [93]4 years ago

8 0

54 oz would be your answer because if you convert 3 lbs to oz then that's 48! Add 6 to that and you get 54 oz!

Lelu [443]4 years ago

4 0

42 oz would be an answer or 1.63 kilos

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You walk 60m east and then 20m at 20 degrees south of west. What is your displacement?

stich3 [128]

Let north and east be posetive
Y=20sin20
=6.840402867 south
X=20cos20
18.79385243 west
Net horizontal components=60+(-18.79)
=41.20614758m
Net vertical=-6.84040267
X^2=41.20614758^2+(-6.684040267)^2
√x^2 =√1744.73771m
x=41.77m

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3 years ago

Please Please I only need help in Questions 4 and 5!

sdas [7]

I'm not sure but for the first one, if there were more electrons than protons that would mean the object would have a positive charge so you could put another object that is positively charged near it, to see if it would attract and if it would it would mean it's negatively charged and if it wouldn't it would mean it's positively charged. (not sure)

for the second one, after you've rubbed the balloon oh hair, the electrons from your hair have transferred onto the balloon, meaning that the balloon is now negatively charged. because the wall is neutral, it means that it has the SAME number of both protons and electrons ( positive and negative charges cancel out to create a neutral charge). because the protons are positively charged, and the balloon is negatively charged, the two objects will attract because opposite charges attract. this happens because of static electricity.

hope this helps :)

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3 years ago

If the force between two fixed Charged spheres is F and you triple the charge on one sphere and also triple the distance between

mezya [45]

Since the charge has a direct proportionality, the increase will be a factor of three. But, since you triple the distance, which has an inversely squared proportion, it will be 3/9 F or 1/3 F.

*This is all based on the fact that this is true:
$F_s = \frac{Kq_1q_2}{r^2}$

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4 years ago

A car traveling at 15 m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. What is it’s acceleration

tresset_1 [31]

So the initial velocity is 15 m/s, the final velocity is 0 since it's at a complete stop and time is 10 seconds. Therefore:

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Therefore, the acceleration is -1.5 m/s^2. The reason it's negative is due to the fact that the vector is going against it's original movement since it's decelerating.

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3 years ago

Read 2 more answers

The force attraction between two objects, does what, as the distance between them increases?

gregori [183]

Decreases

Explanation:

The force of attraction between two objects will decrease as the distance between them increases.

This is in compliance with newtons law of universal gravitation.

The force of attraction between the two bodies is a gravitational force.

According to newton's law of universal gravitation "the force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distances between them".

We see that from the last statement, the force of attraction between is inversely proportional to the square of the distances between them.

F ∞ $\frac{1}{r^{2} }$

r is the distance between them.

learn more:

Universal gravitation brainly.com/question/1724648

#learnwithBrainly

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4 years ago