Answer:
Unit of energy is kg-m/s or Joules.
Explanation:
The mass- energy relationship in physics is given by :
Where
m is the mass of the object
c is the speed of light
The SI unit of m is kilogram while the SI unit of c is as same as speed of light i.e. m/s. So, the unit of energy is kg-m/s. It is also equivalent to Joules.
So, the SI unit of energy is kg-m/s or Joules. Hence, this is the required solution.
Answer:
D. The Federal Reserve Bank can provide a short-term loan to banks
to prevent them from running out of money.
Explanation:
A bank run occurs when a large number of depositors withdraw their deposits simultaneously from a bank.
As the number of withdraws increases, the available cash in the bank decreases until a point that the bank can't give depositors their money.
In these situations, The Federal Reserve Bank acts as a lender of last resort that helps to reinforce the effect of deposit insurance, and to reassure bank customers that they will not lose their money.
Answer:
The fountain is 3.43 m high.
Explanation:
Circumference of the pool = 15 m.
C = 2
r
where C is the circumference and r its radius.
r = 
= 
r = 2.3864
radius of the pool = 2.40 m
So that the height of the fountain, h, can be determined by applying trigonometric function.
Tan θ = 
Tan 55 = 
h = Tan 55 x 2.4
= 1.4282 x 2.4
= 3.4277
h = 3.43 m
The height of the fountain is 3.43 m.
A scientific hypothesis must be testable, but there is a much stronger requirement that a testable hypothesis must meet before it can really be considered <span>scientific</span>
