In other words, it would take Deep Space 1 more than 81,000 years to travel the 4.24 light-years between Earth and Proxima Centauri at its top speed of 56,000 km/h. In relation to human history, that would be more than 2,700 generations.
Nearly 40 trillion kilometers, or 4.4 light-years, separate us from Alpha Centauri. The NASA-Germany Helios probes, the fastest spacecraft to date to be launched into orbit, flew at a speed of 250,000 kilometers per hour. The probes would need 18,000 years to travel at such pace to arrive at the sun's nearest neighbor. The calculations reveal that it is almost impossible to reach the nearest star in a human lifetime, even with the most futuristic technologies.
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When a ball is at a particular height it possess potential energy which is given as,

The potential energy is converted into kinetic energy of the ball. According to conservation of energy,

which can be further given as,

Substitute the known values,

Thus, the kinetic energy of the ball is 0.140 J.
Answer:
(a) emf = 0.507 V
(b) emf = 0.0507 V
(c) emf = 0.00234 V
Explanation:
Given;
number of turns of the coil, N = 40 turns
diameter of the coil, d = 11 cm
radius of the coil, r = 5.5 cm = 0.055 m
magnitude of the magnetic field, B = 0.4 T
The magnitude of the induced emf is calculated as;

(a) when the time, t = 0.3 s

(b) when the time, t = 3.0 s

(c) when the time, t = 65 s

The answer to the correct number of significant figures is 6.774.
<h3>What is quotient?</h3>
When a number(big) divided smaller number, the answer obtained greater than zero is called a quotient.
Divide 143.6 ÷ 21.2
143.6/21.2 = 1436/212
=6.77358
The quotient is rounded to three significant figures after decimal
143.6 ÷ 21.2 = 6.774
Thus, the answer to the correct number of significant figures is 6.774
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Tires aren't made from pure rubber because it makes the weight higher which increases the engine load.
<h3>What is Tyre?</h3>
This is defined as a piece of rubber which is attached to the wheels of automobiles for movement.
Pure rubber isn't used to make tyres because it has a higher weight which increases the engine load thereby making the vehicle slower.
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