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Levart [38]
2 years ago
14

HELP THIS IS DUE TODAY PLEASE

Physics
1 answer:
Sonja [21]2 years ago
5 0
It’s me again lol you’re questions are simple the formula is given in the triangle
The answer is C 39 hz

Please look at the attached image below for the explanation

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Protons and neutrons grouped in a specific pattern
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Answer b protons and electrons
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3 years ago
What information about an element is most crucial for locating that element in the periodic table?
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The most crucial information would be its atomic number. 
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A spring gun consists of a spring inside a plastic tube with spring constant, k. The spring can be compressed 20 cm from its equ
emmainna [20.7K]

Answer: The spring constant is K=392.4N/m

Explanation:

According to hook's law the applied force F will be directly proportional to the extension e produced provided the spring is not distorted

The force F=ke

Where k=spring constant

e= Extention produced

h=2m

Given that

e=20cm to meter 20/100= 0.2m

m=100g to kg m=100/1000= 0.1kg

But F=mg

Ignoring air resistance

assuming g=9.81m/s²

Since the compression causes the plastic ball to poses potential energy hence energy stored in the spring

E=1/2ke²=mgh

Substituting our values to find k

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k=2mgh/e²

k=2*0.1*9.81*2/0.1²

K=3.921/0.01

K=392.4N/m

5 0
3 years ago
You drive on Interstate 10 from San Antonio to Houston, half the time at 75 km/h and the other half at 106 km/h. On the way back
r-ruslan [8.4K]

Answer:

Explanation:

a ) from San Antonio to Houston let distance be d km .

Average speed = total distance / total time

time = distance / speed

Total time = (d / 2 x 75 ) +( d / 2 x 106 )

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b ) from Houston back to San Antonio

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= .0114 d

Average speed  = d / .0114 d = 87.72 km /h

c )

For entire trip :

total distance = 2d

total time = 2 x .0114 d

Average speed  = 2 d / 2 x .0114 d

= 87.72 km /h .

4 0
3 years ago
How can two polarizing filters be used to show that light has some properties of a wave
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Polarizing filters: used to show  light has some properties of a wave in that way of  property is that light can be thought of as traveling forward in waves, with the <span>wave. sorry if this is too late but google is good</span>
6 0
3 years ago
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