Often we think that heat and temperature are the same thing. ... Heat and temperature are related to each other, but are different concepts. Heat is the total energy of molecular motion in a substance while temperature is a measure of the average energy of molecular motion in a substance.
Snell's law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”.
Answer:
The final temperature is 64.28°C.
Explanation:
Imagine now that one tried to repeat the same measurement, but between the time that the 400 cm³ of warm water was measured at 88°C and the time it was mixed with the 130 cm³ of cooler water at 15°C, the warmer water had lost 3060 cal to the environment. Calculate the final equilibrium temperature assuming no heat loss after mixing occurs.
Let the temperature of hot water before mixing is t
We need to calculate the temperature
Using formula of energy
Put the value into the formula
We need to calculate the final temperature
Using formula of temperature
Put the value into the formula
Hence, The final temperature is 64.28°C.
Answer:
0.73 m/s in the forward direction
Explanation:
The caterpillar's velocity relative to the ground is given by:
where
is the velocity of the wagon with respect to the ground
v is the velocity of the caterpillar in the wagon's reference frame
In this situation we have
where the negative sign is due to the fact that the caterpillar is moving backward
Substituting,
Answer:
0.471Nm downwards.
Explanation:
For this problem we need to apply the Torque equation,
That is
Where N is the number of turns, A is the area, B is magnetic field and \theta is the angle loop mae with B
We calculate the area, so
Replacing in the equation of Torque,
We can conclude that the magnutide of maximum torque is 0.471Nm downwards.