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Alex73 [517]
3 years ago
15

HELP ASAP!! WILL MARK BRAINLIEST

Physics
2 answers:
Kitty [74]3 years ago
8 0

Answer:

A

Explanation:

The magnet can always attract other things.

vovikov84 [41]3 years ago
7 0

Answer:

A is right

Explanation:

If you can try this experiment that if you place a magnet to any other iron, steel just like paper clip the paper clip will came close to the magnet and finally it will stick to it and the nail will not even dare to came close to the

paper clip or the paper clip will never dare to came close to the nail

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As the wavelength increases, the frequency (2 points) decreases and energy decreases. increases and energy increases. decreases
frozen [14]
Bohr's equation for the change in energy is
\Delta E= \frac{hc}{\lambda}
where
h = Planck's constant
c == the velocity of light
λ = wavelength.

The velocity is related to wavelength and frequency, f, by
c = fλ

Let us examine the given answers on the basis of the given equations.

a. As λ increases, f decreases and ΔE decreases.
     TRUE

b. As λ increases, f increases and ΔE increases.
    FALSE

c. As λ increases, f increases and ΔE decreases.
    FALSE

Answer: 
As the wavelength increases, the frequency decreases and energy decreases.

3 0
3 years ago
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zheka24 [161]

Answer: idk

Explanation: hahahaha

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2 years ago
A student claims that the Chernobyl accident proves that nuclear power is on safe for use in the United States which statement i
Setler79 [48]
Hi! Check out my valid counter argument below!

"The accident only released harmless gamma rays."

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5 0
3 years ago
Two ice skaters stand in the middle of an ice rink. Drew has a mass of 75 kg, and Lily has a mass of 55 kg. Drew holds Lily, and
ss7ja [257]

PART a)

Before Drew throw Lily in forwards direction they both stays at rest

So initial speed of both of them is zero

So here we can say that initial momentum of both of them is zero

So total momentum of the system initially = ZERO

PART b)

Since there is no external force on the system of two

so there will be no change in the momentum of this system and it will remain same as initial momentum

So final momentum of both of them will be ZERO

PART c)

As we know that momentum of both will be zero always

so we have

P_1 + P_2 = 0

75(v) + 55(2) = 0

v = 1.47 m/s in opposite direction

7 0
2 years ago
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A car weighs 1323 N. what is its mass?
Shalnov [3]
If the car is on the moon, its mass is about 817 kg.

If it's on the Earth, its mass is about 135 kg.
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3 years ago
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