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2 years ago

NEED HELP FROM SCIENCE GENIUS !! POINTS WILL BE GIVEN AND DO GIVE ME A DECENT ANSWER !!!

Physics

2 answers:

STatiana [176]2 years ago

5 0

Explanation:

because there is amblens name

lana66690 [7]2 years ago

4 0

Answer:

because it wants people to know its an ambulance

Explanation:

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Why is the electromagnetic spectrum called a spectrum?

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Answer & Explanation:

Scientists call them all electromagnetic radiation. The waves of energy are called electromagnetic (EM) because they have oscillating electric and magnetic fields. Scientists classify them by their frequency or wavelength, going from high to low frequency (short to long wavelength).

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4 years ago

Near the surface of Earth an electric field points radially downward and has a magnitude of approximately 100 N/C. What charge (

pentagon [3]

Answer:

$q=2.997\times 10^{-4}$ C

Sign-Negative

Explanation:

We are given that

Electric field = $E=100NC^{-1}$ (Radially downward)

Acceleration= $0.19 ms^{-2}$ (Upward)

Mass of charge=3 g= $3\times 10^{-3}$ kg

1kg=1000g

We have to find the magnitude and sign of charge would have to be placed on a penny .

By newton's second law

$\sum F_y=ma$

$\sum F_y=qE-mg$

Substitute the values then we get

$qE-mg=ma$

Substitute the values then we get

$q(100)-3\times 10^{-3}(9.8)=3\times 10^{-3}(0.19)$

$100q-29.4\times 10^{-3}=0.57\times 10^{-3}$

$100q=0.57\times 10^{-3}+29.4\times 10^{-3}=29.97\times 10^{-3}$

$q=\frac{29.97\times 10^{-3}}{100}$

$q=2.997\times 10^{-4}$ C

Sign of charge =Negative

Because electric force acting in opposite direction of electric field therefore,charge on penny will be negative.

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3 years ago

What is the area under the curve for the histogram below?

olga2289 [7]

Well i honestly wouldn’t know

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Some giant ocean waves have a wavelength of 25 m and a frequency of

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Answer:

Explanation:

The frequency equation for waves is

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$.26=\frac{v}{25}$ so

v = .26(25) and

v = 6.5 meters/second

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3 years ago

For an object that travels at a fixed speed along a circular path, the acceleration of the object is

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For an object that travels at a fixed speed along a circular path, the acceleration of the object is LARGER IN MAGNITUDE THE SMALLER THE RADIUS OF CIRCLE.

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