Answer:
D) The given reaction is Exothermic, because energy is released
Explanation:
Here, given that Zinc is added to a beaker containing hydrochloric acid.
Also, the beaker gets warm.
⇒The energy is released in the form of heat.
EXOTHERMIC reactions are those type of reactions in which energy is released in the form of heat.
When the beaker gets warm, the reaction is exothermic in nature.
Hence, the given reaction is Exothermic, because energy is released
If basically means to move quickly
Answer:
Boiling point of water is 100 deg C. It takes about 540 cal to change 1 g of water at the boiling point to 1 g of steam at 100 deg C.
<h2>
The rank is : 
.</h2>
We need to rank the objects according to the magnitude of their momentum.
We know momentum ,
{ here m is mass and v is velocity }
Momentum of object A , 
Momentum of object B , 
Momentum of object C , 
Now, we can rank them in order of their magnitude of momentum .
.
Hence, this is the required solution.
Learn More :
Momentum
brainly.com/question/7957458
Answer:
A. 
B. 
C. 
Explanation:
Given:
- spring constant,

- mass attached,

A)
for a spring-mass system the frequency is given as:



B)
frequency is given as:



C)
Time period of a simple harmonic motion is given as:

