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2 years ago

PLS HELP MEEEE (NO LINKS PLEASE)

Physics

2 answers:

Umnica [9.8K]2 years ago

8 0

Answer:

D. the frequency of gamma rays is greater.

Explanation:

Gamma rays occupy the short-wavelength end of the spectrum; they can have wavelengths smaller than the nucleus of an atom. Visible light wavesare one-thousandths the width of human hair--about a million times longer than gamma rays. Radio waves, at the long-wavelength end of the spectrum, can be many meters long.

HAVE A WONDERFUL REST OF THE DAYYYY! :3

-Dominant- [34]2 years ago

5 0

I think it could be D please tell me if I’m wrong I hope you have a wonderful day ❤️

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A 4 kg block is pulled with 4.1 N of force to the right. The block experiences 1.0 N of

Evgesh-ka [11]

Answer:

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4 0

2 years ago

A 0.2-kg steel ball is dropped straight down onto a hard, horizontal floor and bounces straight up. The ball's speed just before

nadya68 [22]

Answer:

Explanation:

Given

mass of steel ball $m=0.2\ kg$

initial speed of ball $u=10\ m/s$

Final speed of ball $v=-10\ m/s$ (in upward direction)

Impulse imparted is given by change in the momentum of object

therefore impulse J is given by

$J=\Delta P$

$\Delta P=m(v-u)$

$\Delta P=0.2(-10-10)$

$\Delta =-4\ N-s$

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7 0

2 years ago

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Four students made a graphic organizer describing the parts of the atom.

Nikitich [7]

Answer:

I believe the answer is D.

Explanation:

Protons are found inside the nucleus so are neutrons. Electrons are found outside the nucleus.

8 0

2 years ago

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Typically, water runs through the baseboard copper tubing and, therefore, fresh hot water is constantly running through the pipi

Bas_tet [7]

Answer: The temperature of the water falls by 3.3°C

Explanation:

The heat change is related to the change in temperature by the equation

dH = m Cp dT

In this example, -2665 J = 193 g x 4.184 J/g°C x dT

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3 0

2 years ago

Please help me with this question, especially the angle part. I have solved the initial velocity already. I don't know what to d

Helga [31]

I think you almost got it.

At the top, the velocity only has horizontal component, so v=12 m/s is v_x, which is v*cos(theta), because v_x is constant, so the same when it was launched or now.

With the value of the initial speed (28 m/s, which is the total speed), you can set

v_x = v * cos( theta ) ---> 12 = 28*cos(theta) --> cos(theta)=12/28=3/7

or theta = 64.62 deg, it is D. Think about it. I hope you see it.

5 0

2 years ago