Answer:
True,it contains matter
Explanation:
Matter is anything that has weight and occupies space.
The things that we see around us are made up of atoms and compounds .
Lamont could not see anything inside the container because matter are tiny particles made from atoms and compound.
The amount of mass contained in an object is known as mass
The container Lamont is investigating has mass though it was empty.
Your answer is c. homologous structures
I think so yes, it makes sense
Answer:
2.1J
Explanation:
Given parameters:
Spring constant = 128N/m
Compression = 0.18m
Unknown:
Potential energy of the spring = ?
Solution
The potential energy of the spring is the elastic potential energy within the spring.
To solve this;
Elastic potential energy = k e²
k is the spring constant
e is the compression
Now;
Elastic potential energy = x 128 x 0.18² = 2.1J
Answer:
43.41 mm
Explanation:
Given:
thickness of sheet, t = 6 mm
Force exerted by punch, F = 45 KN
Average shearing stress, T = 55 MPa
From average shearing stress T = Force F / Area A
Hence area = force/stress =45000/ 55 =
From area = pi*diameter*thickness
diameter = area/(pi* thickness)
= 818.18/(3.142*6)
= 43.41 mm