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Papessa [141]
3 years ago
10

The force that binds atoms together to form molecules is

Physics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

The electromagnetic force

Explanation:

There are four fundamental forces in nature:

- Gravitational force: it is the force that acts between any particles having mass. It is relevant only on very large scales (planets, stars), since it is the weakest of the 4 forces, so very large masses are needed in order to produce relevant effects.

- Electromagnetic force: it is the force that acts between particles with electric charge. It can be attractive or repulsive. It is the main force that acts between atoms and molecules.

- Strong nuclear force: it is the force that keeps the protons and the neutrons together inside the nucleus. It acts only on very short scales (only within the nucleus of the atom)

- Weak nuclear force: it is the force responsible for the radioactive decays of certain nuclei. It also acts on very short scales.

Therefore, the force that is responsible for binding atoms together to form molecules is the electromagnetic force.

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Calculate the linear acceleration (in m/s2) of a car, the 0.330 m radius tires of which have an angular acceleration of 13.0 rad
Svet_ta [14]

Answer:

a) a_t=4.29m/s^2

b) d=6.40rev

c) \omega=32.5rad/s

d) v=10.7m/s

Explanation:

the linear acceleration is given by:

a_t=r*\alpha\\a_t=0.330m*13.0rad/s^2\\a_t=4.29m/s^2

for b)

d=\frac{1}{2}\alpha*t^2\\d=\frac{1}{2}*13.0*(2.50)^2\\d=40.2rad=\frac{40.2}{2\pi}rev\\d=6.40rev

for c)

\omega=w_o+\alpha*t\\\omega=0+13.0rad/s^2*2.50s\\\omega=32.5rad/s

because it started from rest the initial angular velocity is zero.

for d)

v=r*\omega\\v=0.330m*32.5rad/s\\v=10.7m/s

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Velocity vector and acceleration vector in a uniform circular motion are related as.
mr_godi [17]

They are related as \bold{\underline {v}\,.\,\underline a }= \bold{0}

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  • For any circular motion, the must-have acceleration is the centripetal acceleration that is directed towards the centre of the circular locus (if the motion has a tangential acceleration, it has a tangential acceleration additionally).
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