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Gnoma [55]
3 years ago
5

What would happen if the earth's core was destroyed?

Physics
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
Our atmosphere would be quickly stripped away, much like what apparently happened on Mars after its molten core cooled and solidified. The spinning Earth core is what helps create our magnetic field, without which means no Van Allen Belts, which mean solar radiation becomes more lethal than just sun burn
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According to Newton's 2nd law of motion, if you hit a baseball with a bat it will _____.
shtirl [24]
Newton's second law says that the acceleration of an object is produced by the force exerted on it.
Having this in mind, if you hit a baseball with a bat it will <u>accelerate according to the applied force.</u>
5 0
3 years ago
Read 2 more answers
What part of the stem cell provides instructions for building the heart
Monica [59]
It’s DNA that’s a answer
3 0
3 years ago
Calculate the mechanical advantage of a hammer, if the input force is 125 N
olganol [36]

Answer:

16

Explanation:

Mechanical advantage = force out / force in

MA = 2000 N / 125 N

MA = 16

5 0
3 years ago
Pam, wearing a rocket pack, stands on frictionless ice. She has a mass of 49 kg. The rocket supplies a constant force for 22.0 m
ss7ja [257]

Answer:

Magnitude of the force is 4350N

Explanation:

As the woman accelerates at a distance of 22 m to go from rest to 62.5 m / s, we can use the kinematics to find the acceleration

v² = v₀² + 2 a x

v₀ = 0

a = v² / 2x

 a = 62.5²/(2 × 22)

 a = 88.78m/s²

the time you need to get this speed

     v = v₀ + a t

     t = v / a

     t = 62.5 / 88.78

     t = 0.704s

Let's caculate the magnitude of the force

F = ma

= 49 × 88.78

= 4350.22

≅ 4350N

Magnitude of the force is 4350N

     t = 1,025 s

      a = 55.43 m / s²

4 0
3 years ago
The restoring force on a pendulum bob is proportional to sin(θ), where θ is the angle which the pendulum makes with the vertical
anyanavicka [17]

Answer:

The angle is 4.44º

Explanation:

If:

\frac{sin\theta -\theta}{\theta } \leq 0.1o/o\\\frac{sin\theta -\theta}{\theta }\leq 10^{-3}

According the Taylor`s series:

sin\theta =\theta -\frac{\theta ^{3}  }{3!}  ....

\frac{\theta ^{2} }{6} \leq 10^{-3} \\\theta ^{2} \leq 6x10^{-3} \\\theta \leq \sqrt{6x10^{-3} } \\\theta \leq 0.0775\\\theta = 0.0775rad=4.44

8 0
3 years ago
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