Answer with Explanation:
We are given that
Diameter of cylinder,
3 cm
Radius,
1m=100 cm
Height,h=12 cm=
Mass,m=750 g=
1kg=1000 g
Diameter of beaker,
Radius of beaker,
A.


Hence, the height of the water in the beaker rises when the cylinder is submerged=1.08 cm
B.Weight read on the scale after the cylinder is submerged

Where 

Density of water=


Answer: 4.7rad
Explanation:
Angular displacement =s/r
Where s=distance traveled
r=radius
Angular displacement =141m/30m
Angular displacement =4.7rad.
The correct answer is A: H3PO4
Answer:
The value is
Explanation:
From the question we are told that
The distance of friends house from your point is 
The distance of your friends street from your street is 
The diagram illustrating this question is shown on the first uploaded image
From the diagram we can apply by Pythagoras theorem as follows

=>
=>
=>