Question

Describe an experiment to determine the density of the material of a coin.?????
-: sxckminamg :-​

Answer 1

Answer:

AIM: To determine the density of a 1 cent coin.

THEORY: The density of a substance is the ratio of the mass to the volume of the substance. Density In other terms is mass per unit volume. Therefore the formula for density can be found using the formula: Density (p) Mass/ Volume. Density. If the density of an object is less than the density of the liquid it is placed in, the object will float. However if the density of the object is greater than that of the liquid it will wink.

VARIABLES: Controlled- Coin, Displacement Can, Amount of paper clips used for each part of the experiment (Amount placed on the triple beam balanced must be equal to the number placed in the displacement can),

Manipulated: Water

Responding- Weight and Volume. Density

APPARATUS: Displacement Can

100 One Cent Coins

100cm' Measuring Cylinder.

Water

Triple Beam Balance

Answer 2

Answer:

A simple garden syringe used to produce a jet of water consist of a piston of area 4cm² which moves in horizontal cylinder which has a small hole of area 4mm² at its ends. If the force on piston is 50N, calculate the value of the speed at which the water is forced out of the small hole, assume the speed of the Pistons negligible