3 years ago

Which subatomic particle effects an elements chemical behavior

Physics

1 answer:

RUDIKE [14]3 years ago

6 0

heyo

Any multiple choices?

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How long will it take a ball to hit the ground if it's dropped from a height of 2.0 m?

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Answer:

0.63 s

Explanation:

We have,

Height, h = 2.0 m
Initial velocity, u = 0 m/s
Acceleration due to gravity, g = 10 m/s²

We have to find the time taken.

⠀⠀⠀⠀⇒ h = ut + ½gt²

⠀⠀⠀⠀⇒ h = ½gt²

⠀⠀⠀⠀⇒ 2 = ½ × 10 × t²

⠀⠀⠀⠀⇒ 2 = 5 × t²

⠀⠀⠀⠀⇒ 2/5 = t²

⠀⠀⠀⠀⇒ √(2/5) = t

⠀⠀⠀⠀⇒ <u>0.63 s = t</u>

Therefore, time taken is 0.63 seconds.

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2 years ago

If your brother changes the channel, you will change it back, so then he will change it, then you will change it, etc, etc. This

KonstantinChe [14]

The answer is the law of inetia

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3 years ago

A cosmic ray proton moving toward the Earth at 3.5x 10^7 ms experiences a magnetic force of 1.65x 10^-16 N. What is the strength

Step2247 [10]

Answer:

Magnetic field, $B=4.16\times 10^{-5}\ T$

Explanation:

It is given that,

Velocity of proton, $v=3.5\times 10^7\ m/s$

Magnetic force, $F=1.65\times 10^{-16}\ N$

Charge of proton, $q=1.6\times 10^{-19}\ C$

We need to find the strength of the magnetic field if there is a 45° angle between it and the proton's velocity. The formula for magnetic force is given by :

$F=qvB\ sin\theta$

$B=\dfrac{F}{qv\ sin\theta}$

$B=\dfrac{1.65\times 10^{-16}}{1.6\times 10^{-19}\times 3.5\times 10^7\times sin(45)}$

B = 0.0000416 T

$B=4.16\times 10^{-5}\ T$

Hence, this is the required solution.

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3 years ago

ΑΣ Sign A. keeping everything grounded on Earth. C. planes not being able to fly into space. B. making tall skyscrapers safe, D.

stepladder [879]

Answer:

i think that it is c because it not only tells us about what the moon does to the earth it also tells us what the earth does to the moon.

Explanation:

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3 years ago

Read 2 more answers

A salmon jumps up a waterfall 2.4 m high. With what minimum speed did the salmon

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Answer: D. 6.9 m/s

Explanation: The minimal velocity needed is when we have only vertical motion, then i will think in the problem only in one axis.

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3 years ago