Using the formula for velocity shown below, what is the average velocity of a bicyclist who biked 20 miles north of where he beg
1 answer:
8.1km/hr due North
Explanation:
Given parameters:
Displacement = 20 miles North
Time = 4hours
Unknown;
Velocity = ?
Solution:
Velocity is the speed in a particular direction. It is simply displacement divided by time. A change in position with time.
Velocity =
The unit is usually expressed in km/hr or m/s
We need to convert the given displacement to that in km:
1 mile = 1.609km
20miles = 1.609 x 20, 32.18km
Velocity = = 8.1km/hr due North
Learn more:
Velocity brainly.com/question/10962624
#learnwithBrainly
You might be interested in
Answer:
a) 2.01 g
Explanation:
- Na₂CO₃ (s) + 2AgNO₃ (aq) → Ag₂CO₃ (s) + 2NaNO₃
First we <u>convert 0.0302 mol AgNO₃ to Na₂CO₃ moles</u>, in order to <em>calculate how many Na₂CO₃ moles reacted</em>:
- 0.0302 mol AgNO₃ *
= 0.0151 mol Na₂CO₃
So the remaining Na₂CO₃ moles are:
- 0.0340 - 0.0151 = 0.0189 moles Na₂CO₃
Finally we <u>convert Na₂CO₃ moles into grams</u>, using its <em>molar mass</em>:
- 0.0189 moles Na₂CO₃ * 106 g/mol = 2.003 g Na₂CO₃
The closest answer is option a).
Answer:
1.0 L
Explanation:
Given that:-
Mass of =
Molar mass of = 64.099 g/mol
The formula for the calculation of moles is shown below:
Thus,
According to the given reaction:-
1 mole of on reaction forms 1 mole of
0.0396 mole of on reaction forms 0.0396 mole of
Moles of = 0.0396 moles
Considering ideal gas equation as:-
where,
P = pressure of the gas = 742 mmHg
V = Volume of the gas = ?
T = Temperature of the gas =
R = Gas constant =
n = number of moles = 0.0396 moles
Putting values in above equation, we get:
<u>1.0 L of acetylene can be produced from 2.54 g .</u>