Answer:
no deflection
Explanation:
current is flowing from west to east. As the magnetic field of a long wire carrying current is circular, its direction will be north below the wire and south above the wire (according to the right hand rule). So, when the compass is placed underneath the wire, it will still point towards the north direction.
Answer:
5 mm
Explanation:
Youngs's modulus (Y) is described by the following expression:

Where F is the force exerted on the tendon, L is its length, A is its area and ΔL is its change in length (stretching).
The force in this case is 8 times the weight of the runner:

Therefore, the change in length of the tendon is given by:

the runner's Achilles tendon will stretch by 0.004989 m, which is roughly 5 mm.
The energy from the sun is what sustains the solar system. But this is only a small part of the universe. So it will be inaccurate to say that the source of all energy in the universe is the sun.
<span>The universe is made up of several other galaxies including our own milky way. But looking at these components of the universe, they are made up of stars. Considering that all other stars are similar to our sun, which by the way is also a star, then we can put it that their collective energies is what constitutes the energy source for the universe. </span>
<span>But here we have only considered what we know about the universe, since man has been able to explore only a minute fraction of the universe, it wont be fair to argue that this is absolute. There may be other energy sources out there that have not yet been discovered, but for now, the idea behind the summation of celestial energies should suffice. </span>
Answer:
The speed of the stone is 0.6138 c.
(B) is correct option.
Explanation:
Given that,
Mass of stone m= 0.6
Relativistic mass = 0.76
We need to calculate the speed
Using formula of rest mass


Put the value into the formula



Hence, The speed of the stone is 0.6138 c.
Answer:
pt 1: 
Pt 2: 
Explanation:
Information Given: (p = density)
l = 5200km d = 35km p = 2700kg/
Part 1: Mass






Part 2: Kinetic Energy





Part 3: Jogger Speed
set up, because I don't have the mass :(
Information given:



Hope it helps :)