Answer:
Explanation:
If you cut across the diameter of a pie, you are cutting across the widest part of the pie, which is called the "diameter". This cut divides the pie into two equal halves, known as "semi-circles".
The motion of a car in relation to a reference point can be described by its position and direction. Speed can be determined by measuring the distance traveled in a specific time period.
A moving car can be an object in motion. In relation to a reference point, such as a stationary tree, the car's position and direction of motion can be described. For example, the car may be moving to the right of the tree.
To determine the car's speed, you can measure the distance it travels in a certain amount of time. For instance, if the car travels 100 meters in 10 seconds, its speed would be 10 meters per second (m/s).
In summary, by observing the position and direction of motion of an object in relation to a reference point, you can describe its motion. And by measuring the distance it covers in a given time period, you can determine its speed.
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Rock 1000 0.5
Pillow 200 10
Bottle of soda 2000 2
Loaf of bread 100 1
Answer:
The densest materials are rock and bottle of soda.
Explanation:
The density of material is given by,
Density =
Case 1: Rock
Density =
Density = 2000
Case 2: Pillow
Density =
Density = 20
Case 3: Bottle of soda
Density =
Density = 1000
Case 4: Load of bread
Density =
Density = 100
The densest materials are rock and bottle of soda.
Answer:
Big bang describes an ever expanding model of the universe.
Steady state theory explains a universe that always existed in the same state.
Explanation:
The two theories Big bang and Steady state are two of the theories that explain the origin of the universe in two different ways.
The Big bang model states that the universe is ever expanding and began from a singularity. It says that from that time universe is ever expanding creating new clusters of galaxies.
This was proved using mathematical formulae and models .
Steady state theory states that the density of matter remains unchanged due to the creation of matter. Observable universe is the same at any point of time is its summary.
Answer:
The big bang is the theory that describes how the universe emerges, it tells us that in the beginning all the space was contained in a space that was too small, and from there, it expanded rapidly until it reached the state of the universe that we know today, and that continues in expansion.
The theory of the oscillating universe describes a universe that begins and ends cyclically, it beging with something like the big bang, end ends in what is known as the big crunch, and so on. It says that the universe did not have a beginning but has always been restarting.
The theory of the static or steady state universe describes a type of universe uniform in space and time. And in which the universe has always remained the same regardless of where it is observed, wich is different from the other theories since the big bang theory says the universe had a beginning. In this theory it is claimed that the universe is homogeneous and isotropic. This theory is not very popular today.
A radiologist performs multiple tests including radiography (X-rays), MRI, CT scans, and ultrasounds to diagnose and treat various diseases and injuries.
A radiologist is a medical doctor specialized in diagnosing and treating diseases and injuries using medical imaging procedures. One of the key tests performed by a radiologist is a radiography, also known as X-ray. In this test, a small amount of radiation is used to produce images of the inside of the body. They also perform other tests such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT) scans, and ultrasounds, depending on the nature of the patient's condition.
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