Answer:
the circuits are still touching
Explanation:
Here we can say that net speed against the wind is given by
also if it is moving along the direction of wind we will have
now add the above two equations we will have
also we can say
Explanation:
Given that,
Number density
Temperature = 2.7 K
(a). We need to calculate the pressure in interstellar space
Using ideal gas equation
The pressure in interstellar space is
(b). We need to calculate the root-mean square speed of the atom
Using formula of rms
Put the value into the formula
The root-mean square speed of the atom is 258.6 m/s.
(c). We need to calculate the kinetic energy
Average kinetic energy of atom
Where, k = Boltzmann constant
Put the value into the formula
The kinetic energy stored in 1 km³ of space is .
Hence, This is the required solution.
Answer:
(a)
4) The magnitude of buoyancy force is equal to that of ball's weight
(b) The magnitude of buoyancy force is larger than that of ball's weight. The tension on second ball is 158 newtons
(c) The magnitude of buoyancy force is larger than that of ball's weight. The tension on third ball is 218 newtons.
Explanation:
Newton's third law of motion states that forces always occurs in pairs. For every reaction there is an equal an opposite reaction. For Ball 1 the magnitude of buoyancy force is equal to that of ball's weight. Buoyancy force works against the gravity. Ball 2 and ball 3 have same buoyancy force. The buoyancy force for ball 2 and ball 3 is larger than that of ball's weight.
Tension = Wb - fb
Tension for Ball 2 = 1000 - 842 = 158 newtons
Tension for Ball 3 = 1000 - 1218 = -218 newtons
Answer:
It hit Earth like a really long time ago, so many rocks and soil should have been piled on top of the crater because of wind, rain, etc.
Also, it is really deep and really old so when it is old, it gets less visible to the naked eye.