Answer:
WRITE ONE ADVANTAGE AND ONE DISADVANTAGE OF ALCOHOL AS A LIQUID USED IN THERMOMETERS
Advantage: Alcohol has a high expansivity.
Disadvantage: Alcohol is not opaque, this may give wrong temperature readings.
DIFFERENCE IN FORCES BETWEEN SOLID AND GAS PARTICLES :
Answer: Solids have stronger intetmolecular forces of attraction than gases.
TWO FACTORS TO INCREASE RATE OF EVAPORATION IN LIQUID :
Answer: Decreasing the volume of the container containing the liquid. This will increase vapour pressure as well the rate of evaporation .
From Ohm's Law, Resistance = (voltage) / (current)
The resistance is <em>233,333 and 1/3</em><em> </em><em>ohms</em>.
Answer:
The correct answer is B.
Explanation:
Step 1:
The available regression equation is: Predict height= 0.29 + 0.48 (age).
Here, the predict height is dependent variable and the age is in-dependent variable.
Intercept = 0.29
Slope = 0.48
The given regression equation indicates the y on x model and the intercept coefficients of the regression equation is 0.29 and the slope is 0.48.
Step 2:
The height increases, an average, by 0.48 m per year.
Because co-efficient of slope variable indicate the positive sign and we increase 1 year in age then automatically height increased is 0.48 m.
<h3>
</h3><h3>
The height increases, on average, by 0.48 meter each year.</h3>
Answer:
In a tabular column represent the following characteristics of matter-rigidity, compressibility, shape, kinetic energy and density of following substances- brick, honey, air, block of wood, water
Explanation:
For the given question above, there are other details that is missing. Here is what I got from my research.
Mass of a hydrogen atom as 1.008 u,
<span>where 1 u=1.661 times 10^-27 kg.
</span>The frequency of a mass on a spring is:
<span>f = omega / 2pi = sqrt (k/meff) / 2pi </span>
<span>The meff you use is the effective mass. If two bodies with mass M and m are both free to move: </span>
<span>Meff = Mm / (M+m) </span>
<span>If M=m, then Meff = m/2 (as you were given) </span>
<span>So the answer is: </span>
<span>f = sqrt (2k/m) / 2pi </span>