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juin [17]
3 years ago
13

The dentisty of an object relies on both the _________ of the object.

Physics
1 answer:
Daniel [21]3 years ago
7 0

Answer:

Density is determined by an object's mass and volume.

Explanation:

If two objects take up the same volume, but one has more mass, then it also has a higher density.

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A ball is tossed straight up from the surface of a small, spherical asteroid with no atmosphere. The ball rises to a height equa
alukav5142 [94]

Answer:

d. equal to one-fourth the acceleration at the surface of the asteroid.

Explanation:

The explanation is attached as a picture with this answer

Newton's law of universal gravitation is being used to compare the accelerations at the surface and at the top of the ball's path.

as it can be seen in the explanation that the proportional form of the equation is used because we do not need to necessarily use to final form with "G" for comparison calculations.

As per the given scenario only difference between the two points in the gravitational field is the distance from center of the spherical asteroid, i.e. r.

It is  taken 2r for the top is the path. hence we obtain (1/4)g as our answer.

4 0
4 years ago
Read 2 more answers
Let's examine over the next few questions an NFL kick as described in the 3rd Law video. The announcer claimed that the ball is
hichkok12 [17]

Answer:

8451.62109367671 Newtons

Explanation:

1\ kg=1\times 9.8066500286389=9.8066500286389\ N

1 \lb=2.2046226218488\ kg

It is known that

1\ lbs=\dfrac{9.8066500286389}{2.2046226218488}=4.4482216282508\ N

So,

1900\ lbs=1900\times 4.4482216282508\\\Rightarrow 1900\ lbs=8451.6210936765\ N

The force in Newtons is 8451.6210936765 Newtons

4 0
4 years ago
Speakers A and B are vibrating in phase. They are directly facing each other, are 6.69 m apart, and are each playing a 75.0-Hz t
maw [93]

Answer:

3.117 m

Explanation:

Given that:

the distance of separation between speaker A and speaker B (L) = 6.69 m

Frequency (F) = 750 -Hz tone

Velocity of speed of sound = 343 m/s

The distance from Speaker A to the first point (L₁) on the line can be calculated by using the formula:

L_1=\frac{L-A}{2}

where A = \frac{Velocity ofthe sound (V)}{Frequency (F)}

we have:

L_1=\frac{L-\frac{V}{F} }{2}

L_1=\frac{6.69-\frac{343}{750} }{2}

L_1=\frac{6.69-0.457 }{2}

L_1=\frac{6.233 }{2}

L_1= 3.1165 m

L_1=3.117 m

∴ the distance from speaker A to the first point on the line between the speakers where constructive interference occurs = 3.117 m

3 0
3 years ago
Hakeem has two objects that are different temperatures. The beginning temperature of object A is 10°C. The beginning temperature
devlian [24]
None of the diagrams you attached shows the scenario accurately,
or at all.

Heat flows from Object-B to Object-A, until both objects are at
the same temperature, somewhere between 10°C  and  29°C.
6 0
4 years ago
Read 2 more answers
A train has a constant speed of 10 m/s around a track with a diameter of 45 m what is the centripal acceleration?
Bumek [7]

Answer:

a_{c}= 4.44\frac{m}{s}

Explanation:

When an object goes on a circular movement, it has a centripetal acceleration that always points toward the center of the circle, it is the responsible of the change of direction in the movement of the object. and that centripetal acceleration is related with the speed in the next way:

a_{c}=\frac{v^{2}}{r}, with v the speed, r the radius of the track that is half of the diameter (22.5 m)

a_{c}=\frac{10^{2}}{22.5}

a_{c}= 4.44\frac{m}{s}

5 0
3 years ago
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