If a rock is placed into a graduated cylinder containing 80 mL of water. then the volume of the rock would be 40 if the water level rises to the 120 mL mark
It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.
the density of the rock = mass of the rock /volume of the rock
As given in the problem A rock is placed into a graduated cylinder containing 80 mL of water.
The volume of the rock =120 milliliter - 80 milliliter
= 40 milliliter
Thus, the volume of the rock would be 40 milliliters.
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B) A virtual image is produced if the object is on the focal point, the image is inverted, enlarged and on the opposite side of the lens from the object.
C) A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens
as the object.
D) A virtual image is produced if the object is between the focal point and the
lens, the image will be upright, reduced and on the opposite side of the
lens from the object.
A virtual image is produced if the object is between the focal point and the lens.
A converging lens is a lens that can produce both real and virtual images depending on the position of the object.
A virtual image is produced if the object is between the focal point and the lens, the image will be upright, enlarged and on the same side of the lens as the object.
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Answer: C
Explanation:
C) Steel wheels increase friction, thus making it easier to move the load.
D) Steel wheels reduce friction, thus requiring less force to move the load.
Answer: 3m/s^2
Explanation:
Given that:
Acceleration of object = ?
Force = 9 N
Mass of object = 3 kg
Since force is the product of the mass of an object and the acceleration by which it moves i.e Force = mass x acceleration
9N = 3kg x acceleration
Acceleration = 9N/3kg
Acceleration = 3m/s^2 (3 metres per second square)
Thus, an acceleration of 3m/s^2 is produced.