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evablogger [386]
3 years ago
10

ΑΣ Sign A. keeping everything grounded on Earth. C. planes not being able to fly into space. B. making tall skyscrapers safe, D.

showing us the stars on a dark night. 2. The Earth's gravity is very important to our lives, but so is the gravity of the sun and the moon. The moon's gravity pulls on the ocean and makes the tides rise and fall . The sun's gravity pulls on the Earth and makes sure our planet doesn't go flying out into space. The sun's gravity keeps all the planets spinning around it, and the Earth's gravity keeps the moon close by. Which of the following best describes how the moon and Earth affect one another? A. The moon's gravity keeps Earth in place, B. The moon's gravity keeps the Earth close and the Earth's gravity affects the tides on by, and the Earth's gravity changes the the moon. moon's orbit. C. The moon's gravity creates tides on Earth, D. The moon's gravity creates earthquakes, and the Earth's gravity keeps the moon in and the Earth's gravity creates place. moonquakes. Vom miatt not be able to dun zahaczatball on Earth but vaunrabably could on the mean Why? There is​

Physics
2 answers:
algol133 years ago
5 0

Answer:

Go with C!

Explanation:

:)

stepladder [879]3 years ago
3 0

Answer:

i think that it is c because it not only tells us about what the moon does to the earth it also tells us what the earth does to the moon.

Explanation:

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Which is true of the buoyant force?
victus00 [196]

It acts in the upward direction.

8 0
3 years ago
A motorcycle accelerates uniformly from rest and reaches a linear speed of 24.8 m/s in a time of 9.87 s. The radius of each tire
Vinvika [58]

Answer:

8.756 rad/s²

Explanation:

Given that:

A motorcycle accelerates uniformly from rest, then initial velocity v_i = 0 m/s

It final velocity v_f = 24.8 m/s

time (t) = 9.87 s

radius (r) of each tire  = 0.287 m

Firstly; the linear acceleration of the motor cycle  is determined as follows:

a_T =(V_f - v_i)/t

=(24.8-0)/9.87

=2.513 m/s²

Then;  the magnitude of angular acceleration

α =a_T /r

=2.513/0.287

=8.756 rad/s²

6 0
3 years ago
Read 2 more answers
A wildlife researcher is tracking a flock of geese. The geese fly 4.0km due west, then turn toward the north by 40 degrees and f
BaLLatris [955]

Answer:

(a). The distance from the initial position is 6.68 km.

(b).  The magnitude of their displacement is 7.05 km.

Explanation:

Given that,

Geese fly 4.0 km due west, then turn to north by 40° and fly another 3.5 km.

(a). We need to calculate the distance from the initial position

Using formula of distance

D=AB+BC\cos\theta

Put the value into the formula

D=4.0+3.5\cos40

D=6.68\ km

(b). We need to calculate the magnitude of their displacement

Using formula of displacement

AC=\sqrt{CD^2+AD^2}

AC=\sqrt{(3.5\sin40)^2+(6.68)^2}

AC=7.05\ Km

Hence, (a). The distance from the initial position is 6.68 km.

(b).  The magnitude of their displacement is 7.05 km.

8 0
3 years ago
Read 2 more answers
I need to explain how objects can have the same volume but different mass. Help??
kaheart [24]
No problem, and you already know all about it.

Here are a few examples of same volume / different weight:

-- A bottle full of water is heavier than the same bottle when it's full of air.
-- Stones are heavier than styrofoam chunks the same size.
-- A bowl of meat loaf is heavier than a bowl of scrambled eggs.

In each example, two things have the same volume, but one weighs more than
the other.  I didn't say anything about mass yet, but that's easy:  As long as you
keep everything on Earth, more weight means more mass.

So how come, in each example, things with the same volume have different mass ?
This was your original question.

The answer is just the simple fact that there are millions of different substances, and
each different substance packs a different amount of mass into the same volume.

The amount of mass that a substance packs into a standard volume is called
the <em>density</em> of the substance.  Meat loaf is more dense than scrambled eggs.
Stone is more dense than styrofoam.  Water is more dense than air.  And <em>gold</em>
is 19 times as dense as water.  If you have a jar that holds a pound of water, and
you pour out the water and fill the jar with gold, the same jar holds 19 pounds of gold,
because the density of gold is 19 times the density of water.

The reason you were assigned to think about this question for homework is that
next time your Physics class meets, you'll start talking about <em>Density. </em><em /> And you're
all ready for it now.
6 0
4 years ago
Find the frequency (in hertz) of the first overtone for a 1.75 m pipe that is closed at only one end. Use 350 m/s for the speed
serg [7]

Answer:

The first overtone frequency is 100 Hz.

Solution:

According to the question:

Length of pipe, l = 1.75 m

Speed of sound in air, v_{sa} = 350 m/s

Frequency of first overtone, f_{1} is given by:

f_{1} = \frac{v_{sa}}{2l}

f_{1} = \frac{350}{2\times 1.75} = 100 Hz

Since, the frequency, as clear from the formula depends only on the speed

and the length. It is independent of the air temperature.

Thus there will be no effect of air temperature on the frequency.

7 0
3 years ago
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