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Phoenix [80]
3 years ago
13

Scientific experiments must be able to be repeated by multiple scientists to verify the results that are obtained. Which of the

following is an example of a scientific question that could be used to create an easily reproducible experiment?
a.Why do people like to watch television?b.Does the mass of a rocket affect the distance it can travel?c.What makes the sky blue?d.Does sugar or salt have a greater effect on plant growth?
Physics
1 answer:
Murrr4er [49]3 years ago
7 0
A. Why do people like to watch TV
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How are the electric field lines around a positive charge affected when a second positive charge is near it?
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Stels [109]

Answer:

Force, F = 20240 N

Explanation:

It is given that,

Pressure exerted by the four tires of an automobile, P=2.2\times 10^5\ Pa

Area of each tire, A=0.023\ m^2

Area of 4 tires,  A=0.092\ m^2

We know that the pressure exerted by an object is equal to the force per unit area. Its formula is given by :

P=\dfrac{F}{A}

F=P\times A

F=2.2\times 10^5\times 0.092

F = 20240 N

So, the weight of the automobile is 20240 N. Hence, this is the required solution.

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3 years ago
What type of nuclear radiation is emitted when carbon-14 decays
dalvyx [7]

Answer:

Beta radiation

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The owner of a hobby store bought a case of 9-volt batteries for $61.00. He marked the price up such that his profit was $3.75 p
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19

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