Answer:
15.64m/s
Explanation:
This is a unit of speed which is the rate of change of distance with time
I am driving at 35mph: and I want to express as m/s
mph means miles per hour
This suggests that I have to convert miles to m and hrs to secs:
for distance 1.609km = 1mi
1000m = 1km
for time:
1hr = 60minutes
1min = 60seconds
Using dimensional analysis:
x 
x 
x 
x 
= 15.64m/s
Answer:
Refraction is the bending of a wave when it enters a medium where its speed is different, like going from the air (gas) to a glass of water (liquid). Absorption is when light energy penetrates an object. Typically this energy is then converted to heat.
Since the atoms or molecules in a solid do not translate hence, the structures of solids usually described in terms of the positions of the constituent atoms rather than their motion.
<h3>States of matter</h3>
There are three state of matter which are;
In a solid, atoms or molecules retain their positions and do not translate, hence, the structure of atoms or molecules are most important in determining the structure of a solid.
Also, the fact that the atoms or molecules in a solid can only vibrate or rotate explains why the structures of solids usually described in terms of the positions of the constituent atoms rather than their motion.
Learn more about the states of matter: brainly.com/question/9402776
Answer:
The final temperature is 39.58 degree Celsius
Explanation:
As we know
Q = m * c * change in temperature
Specific heat of water (c) = 4.2 joules per gram per Celsius degree
Substituting the given values we get -
5750 = 335 * 4.2 * (X - 35.5)
X = 39.58 degree Celsius
Answer:
27 liters of hydrogen gas will be formed
Explanation:
Step 1: Data given
Number of moles C = 1.03 moles
Pressure H2 = 1.0 atm
Temperature = 319 K
Step 2: The balanced equation
C +H20 → CO + H2
Step 3: Calculate moles H2
For 1 mol C we need 1 mol H2O to produce 1 mol CO an 1 mol H2
For 1.03 moles C we'll have 1.03 moles H2
Step 4: Calculate volume H2
p*V = n*R*T
⇒with p = the pressure of the H2 gas = 1.0 atm
⇒with V = the volume of H2 gas = TO BE DETERMINED
⇒with n = the number of moles H2 gas = 1.03 moles
⇒with R = the gas constant = 0.08206 L*Atm/mol*K
⇒with T = the temperature = 319 K
V = (n*R*T)/p
V = (1.03 * 0.08206 *319) / 1
V = 27 L
27 liters of hydrogen gas will be formed
