Http://tomschoderbekchem.blogspot.com/2014/09/nuclear-fission-and-fusion-worksheet.html
Answer:
180 miles/hr
Explanation:
15 min=1/4 hr
s= distance/time
s=45miles/1/4 hr
s=45miles x 4/1=180 miles/hr
Answer: Newton
Explanation:-
Force is defined as an interaction that causes an affected object to be pushed or pulled in a certain direction.

where m= mass of an object
a = acceleration of the object
S.I unit of mass is kg and S.I units of acceleration is 
Thus For S,I units of force:

<span>magnitude and direction</span>