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3 years ago

8

Why does earth orbit the sun instead of the moon? A) the sun is larger than the moon B) The sun is brighter than the moon C) The

sun is farther away than the moon D) The sun has more mass than the moon

2 answers:

podryga [215]3 years ago

7 0

D because that makes the most sense logically

11111nata11111 [884]3 years ago

3 0

Answer:

d

Explanation:

because the greater the mass the greater its gravitational pull

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I need an answer for this plzz!!<br>number 2 <br>anybody can help ??

Anuta_ua [19.1K]

2.1) (i) W = mg downwards
(ii) N = R = Normal Reaction from the ground upwards
(iii) Fe = Force of engine towards the right
(iv) f = friction towards the left
(v) ma = Constant acceleration towards right.
2.2.1)
v = 25 m/s
u = 0 m/s
∆v = v - u = (25 - 0) m/s = 25 m/s
x = X
∆t = 50 s
$a \: = \: \frac{dv}{dt} \: = \: \frac{25 \: \frac{m}{s} }{50 \: s} \: = \: 0.5 \: \frac{m}{ {s}^{2} }$
a = 0.5 m/s².
2.2.2)
F = ma = 900 kg × 0.5 m/s² = 450 N.
2.2.3)
$2ax \: = \: {v}^{2} \: - \: {u}^{2}$
$x \: = \: \frac{ {v}^{2} \: - \: {u}^{2} }{2a} \: = \: \frac{{(25 \: \frac{m}{s})}^{2} \: - \: {(0 \: \frac{m}{s} )}^{2} }{2 \: \times \: 0.5 \: \frac{m}{ {s}^{2} } } \: = \: 625 \: m$
2.3)
Fe = f + ma
Fe - f = ma
For velocity to be constant,
a should be 0, or, a = 0,
Fe = f = 270 N
2.4.1)
v = 0
u = 25 m/s
a = -0.5 m/s²
v = u + at
t = -u/a = -(25)/(-0.5) = 50 s.
2.4.2)
x = -625/(2×(-0.5)) = 625 m.

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3 years ago

What is the net force of a 25 g object with an acceleration of 3 m/s^2? 100PTS

gayaneshka [121]

Explanation:

Force=Mass×acceleration

force=25×3

force=75N

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3 years ago

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icang [17]

Answer:

Explanation:

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The factor that influence climate are

1. latitude

2. elevation,

3. nearby water

4. ocean currents

5. topography

6. vegetation

7. prevailing winds.

The primary cause of climate change is the burning of fossil fuels, such as oil and coal, which emits greenhouse gases into the atmosphere—primarily carbon dioxide. Other human activities, such as agriculture and deforestation, also contribute to the proliferation of greenhouse gases that cause climate change.

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3 years ago

I only need help on #15! Thanks!

Vanyuwa [196]

I would have to say that 'B' and 'D' are both correct.

Increasing the voltage that you're using to operate a circuit
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4 years ago

Which of the following is a true statement about learning?

Furkat [3]

Answer:

B. learning happens through experience and practice.

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3 years ago