Explanation:
The given data is as follows.
= 50 ml, 
= 345 K
= 298 K, 
= 317 K,
= 50 ml
Now, we will calculate the heat energy as follows.
= 
= 5857.6 J
= 
= 3974.8 J
As, 
so there will be loss of heat. And, some heat will go to the calorimeter.
Hence, 
= 1882.8 J
We assume that the temperature of (calorimeter + water) is 298 K. Hence,
dT = 
= (317 - 298) K
= 19 K
Hence, we will calculate the specific heat as follows.
C = 
= 
= 99.1 J/K
Thus, we can conclude that the value of 
for the calorimeter is 99.1 J/K.
Answer: 600
I hope this helps you
Answer:
B
Explanation:
so you started out with 80
you have to cool it till 60
so it is decreasing which means you have to subtract
Note=if something is increasing or wanting to go up its addition but for this problem 60 is less then 80 so we are doing subtraction
80-60=20
They would repel one another because they they have opposing charges
Answer:
Explanation:
It may not make any difference. The information missing is the radius of the planet.
However for the purposes of the question, let us assume that it is roughly the same diameter of the earth. Then the weight of anyone would increase if the mass is all that changes..
The formula governing your weight is F = G * m1 *m2 / r^2. If m1 is the mass of the planet and it increases a lot then m2 (you) should increase. The question is done by a proportion.
