The answer for question 2 i guess it’s c
Answer:
speed =distance/time taken
5 m/s
Reactants ---> product
The products are found on the right side of the arrow in a chemical reaction.
Answer:(a) 50 N
(b)38.34 N
Explanation:
Given
Maximum tension(T) in line 50 N
(a)If line is moving up with constant velocity i.e. there is no acceleration
This will happen when Tension is equal to weight of Fish
T-mg=0
T=mg
Maximum weight in this case will be 50 N
(b)acceleration of magnitude 
T-mg=ma


m=3.91
Therefore weight is 
Answer:
a) 
b) 
Explanation:
Given:
- mass of copper,

- initial temperature of copper,

- specific heat capacity of copper,

- mass of water,

- initial temperature of water,

- specific heat capacity of water,

a)
<u>∵No heat is lost in the environment and the heat is transferred only between the two bodies:</u>
Heat rejected by the copper = heat absorbed by the water


b)
<u>Now the amount of heat transfer:</u>



∴Entropy change


