Answer:
non of the above
Explanation:
Quantity of heat = mass× specific heat× change in temperature 
m= 7kg c= 4.18 temp= 46-25=21°
.......H= 7×4.18×21= 614.46kJ
 
        
                    
             
        
        
        
The pressure at the depth h in the ocean is given by (Stevin's law)

where

 is the atmospheric pressure
and 

 is the pressure exerted by the column of water of height h=4267 m, with 

 being the water density and 

.
Substituting, we find

We want to convert this into atmospheres: we know that 1 atm corresponds to the atmospheric pressure at sea level, so 

, therefore we just need to divide by this number:
 
 
        
        
        
C. since the the heat from the heater is going to the child in <u>waves</u>, it’s<u> radiating </u>
 
        
             
        
        
        
Answer: ⇒  Answer is 3
<h2>Explanation
: momentum = mass × velocity</h2>
"A small force may produce a large change in momentum by acting on a very massive object".
THEY HAVEN'T GIVEN US THE TIME PERIOD NOR THE DISTANCE TRAVELED. THEREFORE WE CANNOT ACTUALLY DECIDE IF THE FORCE IS KEPT FOR A LONG TIME OR SHORT TIME. ANYWAYS SINCE THE MASS IS GIVEN AS MASSIVE , THE  MOMENTUM SHOULD BE DEFINITELY HIGH. 
WHY I SAY OTHERS ARE WRONG:
1) For a small force to give a large change in momentum, it should act for a long time interval.
2) By applying a large force for a short time interval, the change of momentum should be large.
3) Correct answer.
4) Acting over a short distance can be the same as acting over a short period of time.Therefore the distance should be large in order for a larger momentum.
I HOPE IT HELPS!
 
 
        
             
        
        
        
Answer:

Explanation:
electronic configuration of an atom is the spatial arrangement of the electrons around the nucleus in the energy orbits
We know that the atomic number of Titanium is 22
The electronic configuration of Titanium is
