Answer:
Forensic scientists must accurately interpret test results
Explanation:
Misinterpreting test results could mean someone being falsely accused of a crime which you would want to avoid.
Pearl Ash is an example of an Impure Potassium Carbonate
Answer:
Explanation:
Givens
The frequency is defined by
Where is the speed of the wave in the string and is its wave length.
The wave length is defined as
Now, to find the speed, we need the tension of the wire and its linear mass density
Where and the tension is defined as
Replacing this value, the speed is
Then, we replace the speed and the wave length in the first equation
Therefore, the frequency is
Answer:
Injury to a vein increases the risk of forming a blood clot.
Explanation:
hoped this helped
Answer:
Work done = 13605.44
Explanation:
Data provided in the question:
For elongation of 2.1 cm (0.021 m) work done by the spring is 3.0 J
The relation between Energy (U) and the elongation (s) is given as:
U = ................(1)
where,
k is the spring constant
on substituting the valeus in the above equation, we get
3.0 =
or
k = 13605.44 N/m
now
for the elongation x = 2.1 + 4.1 = 6.2 cm = 0.062 m
using the equation 1, we have
U =
or
U = 26.149 J
Also,
Work done = change in energy
or
W = 26.149 - 3.0 = 23.149 J