Answer:
Explanation:
A light year is a unit of length and is defined as "the distance a photon would travel in vacuum during a Julian year at the speed of light at an infinite distance from any gravitational field or magnetic field. "
In other words: It is the distance that the light travels in a year.
This unit is equivalent to , which mathematically is expressed as:
Doing the conversion:
This is the distance from Earth to Sirius in miles.
Answer:
it would take him 1 minute to run 304.5 meters and 1 second to run 5.075 meters
Explanation:
Answer:
B. neutrons
Explanation:
When a free neutron hits the nucleus of a fissile atom like uranium-235 (235U), the uranium splits into two smaller atoms called fission fragments, plus more neutrons. Fission can be self-sustaining because it produces more neutrons with the speed required to cause new fissions. This creates the chain reaction.
Answer:139 ft/s
Explanation:
Given
ball leaves the bat at angle of
as the height with ball is launched and height of fielder is same so its vertical displacement is zero and ball is considered to complete a projectile motion with range =300 ft
Also range of projectile is given by
where u= launch velocity
Answer:
No, scalar and vector quantities are two different categories of a quantity.
So vector could not be considered to be scalar too.
<em>But turning a vector to a scalar is possible</em>. Only remove the direction of movement.