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Sveta_85 [38]
3 years ago
14

A student is planning an experiment to find

Physics
2 answers:
mamaluj [8]3 years ago
4 0

Answer:

b) the height the ball bounces

Explanation:

the control variable is the variable that you change yourself. since you change the height that the ball bounces from we know this is the answer

Harlamova29_29 [7]3 years ago
3 0
The height of the bar being dropped is there an answer. Because It’s a variable that is not of interest to the studies in but it can be controlled and can influence the outcome of the experiment.
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Please help, last question i can ask, brainest if correct
Ugo [173]

Answer:

C. Athletic performance peaks during teen years

Explanation:

According to me this is the right answer because in A it is actually men’s athletic ability that peeks later than women. In B, it is kinda obvious that is not true.

Hope this helps!

7 0
3 years ago
The physical (natural) laws which establish how things work can be investigated by the scientific method. True or False
UNO [17]

Answer:

True

Explanation:

It's a bit hard to explain, so you can watch a youdube video on it or something.

8 0
2 years ago
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What is common to all fossil fuels?
natta225 [31]
All fossil fuels are formed deep underground. they are all nonrenewable energy
3 0
3 years ago
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1.Predict the frequency of a tuning fork that emits a sound with a wavelength of 0.385 m.
lina2011 [118]

Answer:

1.) Frequency F = 890.9 Hz

2.) Wavelength (λ) = 0.893 m

Explanation:

1.) Given that the wavelength = 0.385m

The speed of sound = 343 m / s

To predict the frequency, let us use the formula V = F λ

Where (λ) = wavelength = 0.385m

343 = F × 0.385

F = 343/0.385

F = 890.9 Hz

2.) Given that the frequency = 384Hz

Using the formula again

V = F λ

λ = V/F

Wavelength (λ) = 343/384

Wavelength (λ) = 0.893 m

The two questions can be solved with the use of formula

3 0
3 years ago
Please tell me if this is Newton's first law, second, or third law of motion. There can be more than one of the same answer very
AfilCa [17]

Answer: Hope This Helps!

Explanation:

1: Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed.

2: Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot.

3: Newtons third law can explain, as the cannonball is pushed forwards by the expanding high-pressure gases created by the exploding gunpowder, it pushes back on these gases. The gases push back on the cannon itself, causing it to roll backwards. Alternative answer: the cannon pushes forward on the cannonball. the reaction force is the cannonball pushing backwards on the cannon.

5 0
3 years ago
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