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4 years ago

A race car travels around a curve at a constant speed. Is the race car accelerating?

Physics

2 answers:

tatiyna4 years ago

8 0

no. the race care is at a constant speed. its staying the same speed.

AURORKA [14]4 years ago

4 0

No because if it is at a constant speed, that means it is not changing in speed

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At the point of fission, a nucleus of ^235 U that has 92 protons is divided into two smaller spheres, each of which has 46 proto

IrinaK [193]

Answer : $F = 3.5\times10^{3}\ N$

Explanation :

Given that

Radius of sphere $r = 5.90\times 10^{-15}\ m$

The distance between the centers of the two spheres is

$r = 2\times 5.90\times 10^{-15}\ m$

The charge of the sphere $q = 46\times1.6\times10^{-19} C$

The magnitude of the repulsive force between the charges pushing them a part is

Using coulomb law

$F = \dfrac {kq_{1}q_{2}}{r^{2}}$

$F = \dfrac{9\times10^{9}\times (46\times1.6\times10^{-19})^{2}C^{2}}{2\times(5.90\times10^{-15})^{2}\ m^{2}}$

$F = 3501.3\ N$

$F = 3.5\times10^{3}\ N$

Hence, this is the required solution.

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3 years ago

The impulse experienced by a body is equivalent to the body’s change in?

vovangra [49]

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3 years ago

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astra-53 [7]

Answer:

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3 years ago

The key to making a concise mathematical definition of escape velocity is to consider the energy. If an object is launched at it

aleksklad [387]

Answer:

The total Mechanical energy will be zero

Explanation: Escape velocity is the velocity required by a free object in order to overcome the impact of the force of gravity. The total mechanical energy of an object is the total energy possessed by an object which includes its kinectic and potential energy.

since the object is moving at an escape velocity which is 11.2m/s the object will be assumed to be weightless

Etotal = kinetic energy + potential energy

kinetic energy= 1/2*M*V*V

Potential energy=MGH

Etotal=1/2*0*11.2*11.2+0*0*0

Etotal=0+0

Etotal=0.

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3 years ago

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wolverine [178]

I think the answer is D

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3 years ago