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IceJOKER [234]
3 years ago
15

Calculate the answers to the appropriate number of significant 12.21 x 9.19 =

Physics
1 answer:
sweet-ann [11.9K]3 years ago
5 0
the answer for 12.22 times 9.29 is 112.2099
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Certain neutron stars (extremely dense stars) are believed to be rotating at about 1000 rev/s. If such a star has a radius of 14
Sever21 [200]

Answer:

minimum mass of the neutron star = 1.624 × 10^30 kg

Explanation:

For  a material to remain on the surface of a rapidly rotating neuron star, the magnitude oĺf the gravitational acceleration on the material must be equal to the magnitude of the centripetal acceleration of the rotating neuron star.

This can be represented by the explanations in the attached document.

minimum mass of the neutron star = 1.624 × 10^30 kg

8 0
3 years ago
Which describes an object in projectile motion? Check all that apply.
Elodia [21]

Answer:

Gravity acts to pull the object down.

The object’s inertia carries it forward.

The path of the object is curved.

Explanation:

The motion of a projectile consists of two separate motions:

- A uniform motion along the horizontal direction, where the velocity is constant; since there are no forces along this direction, the velocity does not change, and so the object continues its motion for inertia --> so, the statement  "The object’s inertia carries it forward" is true.

- A uniformly accelerated motion along the vertical direction, with a constant downward acceleration (g=9.8 m/s^2, acceleration due to gravity). So, the vertical velocity changes, due to the presence of the gravity that acts to pull the object down.

- As a result of the combination of these two motions, the object follows a curved path (in particular, it is a parabolic path).

5 0
3 years ago
Which types of electromagnetic waves have longer wavelengths than the waves that make up visible light? check all that apply. ra
Mekhanik [1.2K]
The order goes like this:
 
Radio, Micro waves, Infrared, Visible, UV (Ultra Violet), X-Ray, Gamma Ray. 
5 0
4 years ago
Read 2 more answers
In a series of undisturbed rock layers where shale lies between sandstone below and limestone above, the ____.
larisa86 [58]
The answer to the question '<span>In a series of undisturbed rock layers where shale lies between sandstone below and limestone above, the __." would be limestone is youngest. Out of all the rock layers, the limestone is dated to be the youngest of all.</span>
8 0
4 years ago
Read 2 more answers
A rock with a mass of 8 kg falls straight down from a height of 7 m. What work is done?
fenix001 [56]
F=MA
F=(8 kg)(9.8 m/s)
F= 78.4 N
W=FD
W=(78.4 N)(7 m)
W=548.8 J
How this helps
7 0
4 years ago
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