3 years ago

What causes a solar eclipse? Select all that apply.

Physics

2 answers:

brilliants [131]3 years ago

4 0

I think it is either D) or E)

But i am going to go with E)

kvv77 [185]3 years ago

4 0

B.) the shadow of the moon

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Two small plastic spheres each have a mass of 1.1 g and a charge of -50.0 nC . They are placed 2.1 cm apart (center to center).

Solnce55 [7]

Answer:

Part a)

F = 0.051 N

Part b)

Both spheres will follow Newton's III law of action reaction force so both sphere will have same force of equal magnitude.

Explanation:

Part a)

Electrostatic force between two charged spherical balls is given as

$F = \frac{kq_1q_2}{r^2}$

here we will have

$q_1 = q_2 = 50 nC$

here the distance between the center of two balls is given as

$r = 2.1 cm = 0.021 m$

now we will have

$F = \frac{(9\times 10^9)(50 \times 10^{-9})(50 \times 10^{-9})}{0.021^2}$

$F = 0.051 N$

Part b)

Both spheres will follow Newton's III law of action reaction force so both sphere will have same force of equal magnitude.

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3 years ago

Balance the eauation C2H2O4 +NaO4

ella [17]

Answer: Do you mean NaOH? because NaO4 does not exist

C2H2O4 + 2NaOH → Na2C2O4 + 2H2O

Explanation:

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3 years ago

A 12.0 kg object is attached to a cord that is wrapped around a wheel of radius 10.0 cm. the acceleration of the object down the

olganol [36]

a) We use the formula:

T = [g sinθ – a] * m

where g is gravity, θ is the angle, a is acceleration, m is mass

T = [9.81 sin37 - 2.00] * 12 = 46.85 N 

b) We use the formula for moment of interia:

I = T * r² / a

I = 46.85 * 0.10² / 2.00 = .2343 kg∙m² 

c) The formula we can use here is:

w = α * t = (a/r) * t

w = (2/.10) * 2

w = 40 rad/sec

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Answer:

There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.

Explanation:

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3 years ago

When melting is taking place thermal energy heat must be ?

const2013 [10]

Answer:

yes

Explanation:

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4 years ago

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