The functions of angles are used to find unknown lengths or angles that can't be measured, in terms of known quantities. The trig functions of angles are ratios of lengths, so they're bare naked numbers without units.
Answer:
F=12.5N
Explanation:
Net force = rate of change of momentum

so find the change of momentum P
Pdown

Pup

dP = change in P

so
Answer:
Sodium formate is the sodium salt of formic acid which is given as HCOONa.
Explanation:
The basic structure of Sodium formate consists of following bonds:
- The main Ionic bond between the
radical and
. - The sigma covalent bonds between atom of H, atom of C and both atoms of O.
- The pi bond between atom of C and one atom of O.
The structure along with lone pairs is given as attached
Answer:
Approximately
(rounded down,) assuming that
.
The number of repetitions would increase if efficiency increases.
Explanation:
Ensure that all quantities involved are in standard units:
Energy from the cookie (should be in joules,
):
.
Height of the weight (should be in meters,
):
.
Energy required to lift the weight by
without acceleration:
.
At an efficiency of
, the actual amount of energy required to raise this weight to that height would be:
.
Divide
by
to find the number of times this weight could be lifted up within that energy budget:
.
Increasing the efficiency (the denominator) would reduce the amount of energy input required to achieve the same amount of useful work. Thus, the same energy budget would allow this weight to be lifted up for more times.
Answer:
The wavelength range is always used to know the probable material present
Explanation:
The wavelength variation from with the concentration shows the type of material in as much the Spectrometer is well initialized before running the sample. The peaks interval may have effect on band gap.