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GenaCL600 [577]
4 years ago
15

Planets that are cold have only a small amount of gravity

Physics
1 answer:
Nonamiya [84]4 years ago
4 0
There is no theoretical OR observational evidence for that statement.
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S= 1/2(V f + V I )t solve for V f <br><br> show me how
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<span>S= 1/2(V f + V I )t solve for V f 
2s/t=Vf+Vi
</span><span>2s/t-Vi=Vf</span>
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4 years ago
A truck and a scooter moving with the same velocity colide. Why does the scooter fly off?
iragen [17]
We know, Momentum is the product of mass and velocity. As velocity is equal, momentum of Truck will be greater as mass of Truck is greater than the scooter. As momentum is greater from truck side, it will transfer the same amount to the scooter, so it flies away

Hope this helps!
6 0
4 years ago
A jet aircraft with a mass of 4,475 kg has an engine that exerts a force (thrust) equal to 60,800 N. (a) What is the jet's accel
BartSMP [9]

Answer:

a) 13.59 m/s²

b) 67.95 m/s

c) 169.875 m

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

m = Mass

Force

F=ma\\\Rightarrow a=\frac{F}{m}\\\Rightarrow a=\frac{60800}{4475}\\\Rightarrow a=13.59\ m/s^2

Acceleration of the jet is 13.59 m/s²

v=u+at\\\Rightarrow v=0+13.59\times 5\\\Rightarrow v=67.95\ m/s

Velocity attained at 5 seconds is 67.95 m/s

v^2-u^2=2as\\\Rightarrow s=\frac{v^2-u^2}{2a}\\\Rightarrow s=\frac{67.95^2-0^2}{2\times 13.59}\\\Rightarrow s=169.875\ m

Distance traveled in the 5 seconds is 169.875 m

4 0
3 years ago
Read 2 more answers
If you put something like a piece of cardboard between a magnet and an iron nail, the magnet still holds the nail in place, even
DENIUS [597]

Answer:

A magnet has a field having lines of force around it that moves through the air which is a nonpermeable medium that allows the passage of magnetic field lines of force. The cardboard is a similar nonpermeable medium and the magnetic lines of force pass through to induce magnetism in the iron nail which is a ferromagnetic material that becomes magnetized by the magnetic field from the magnet

The induced magnetism in the iron nails causes the reverse poles to form in the iron with the iron domain's induced north pole pointing in the direction of the south pole of the magnet and vice versa

The iron nail is then attracted to the magnet as like poles attract, thereby holding the iron nail in place with the cardboard in between, without direct contact between the nail and the magnet as the cardboard prevents the magnet from touching the iron nail held in place

Explanation:

3 0
3 years ago
The kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s is j. (formula: )
andreyandreev [35.5K]
1/2 m V-squared = j. j = 25 joules.
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3 years ago
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