Answer:
the answer would be B
Explanation:
all the animals are plant eaters or herbivores
PLEASE HELP ASAP
How is science different from other activities involving thought. Give 2-3 sentences to explain why.
Answer:
Science is different from other activities that involve thought because you can create experiments to test any ideas that you have. Another difference is that the government will pay you for being a scientist unlike being a random person with an idea.
Hope this helps/gives you some ideas :)
Explanation:
Which statement best describes the role of gravity?
It decreases the mass of objects.
It increases the density of objects.
It repels objects in proportion to their temperature.
It draws objects together in proportion to their mass.
Which of the following happens when unbalanced forces act on an object? The object remains stationary. The object moves with the same velocity. The object moves in the direction of the stronger force. The object's speed and direction of motion remain unchanged
The object move in the direction of the stronger force is the answer.
What are balanced and unbalanced forces?balanced force when two individual forces are of the same magnitude and point in opposite directions. We talk about unbalanced forces on an object only if there is a single force of the same magnitude but not balanced by opposite forces.
If the resultant force of all the forces acting on an object is not zero, the forces will be imbalanced. Power. These forces change the stationary state or the uniform movement of the body. Example: Push a toy car lying on the ground and it will start moving with one side force.
The object move in the direction of the stronger force happens when unbalanced forces act on an object
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make a list of possible consequenes of solar flares to the following members of your community
True or False? each SI unit is 10 times smaller than the next smallest unit.
It is a true statement that each SI unit is 10 times smaller than the next smallest unit.
What is a unit of measurement?
A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.
The measuring unit can be expressed as a multiple of any extra quantity of that kind.
1 kilometer = 10 hectometer
1 hectometer = 10 decameter
1 meter = 10 desimeter
1 decimeter = 10 centimeter
1 centimeter = 10 millimeter
Hence, we can say it is a true statement that each SI unit is 10 times smaller than the next smallest unit.
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When you graph displacement vs. time, velocity is represented by .............................
Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different A) complexes. B) compounds. C) elements. AND) mixtures.
Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different elements. therefore the correct answer is option C.
What is a Chemical compound?A chemical compound is a combination of two or more either similar or dissimilar chemical elements.
For instance, the chemical molecule CO2 is composed of one carbon atom and two oxygen atoms.
As given in the problem statement water is formed when two hydrogen atoms bond to an oxygen atom.
Hydrogen and oxygen are examples of different kinds of elements.
Thus, when two hydrogen atoms join with an oxygen atom, water is created. In this illustration, hydrogen and oxygen are separate elements. the correct answer is option C.
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a car moving 12 m/s stops in 3 seconds vf=
Answer:
The question seems to be looking for vf, which may be the final velocity.
We know that the car stops, so the car is at rest, this means that the final velocity is equal to zero.
vf = 0 m/s
Now, we also can find the acceleration, the velocity equation can be written as:
v(t) = a*t + 12m/s
We know that in 3 seconds the car stops, so we have:
v(3s) = 0 = a*3s + 12m/s
a= -12m/s*(1/3s) = -4m/s^2
So in those 3 seconds where the car is stoping, the acceleration of the car is -4m/s^2, and the velocity of the car in those 3 seconds can be described by the equation:
v(t) = -4m/s^2*t + 12m/s
18)
The process of deposition causes
A) rock and soil to slowly be lost.
B) rock and soil to quickly be lost.
C) rock and soil to slowly be gained.
D) rock and soil to quickly be gained.
19)
Roberto's family went to the coast of Georgia. While they were there, Roberto noticed that the rocks close to the water were smooth, and the rocks farther away from the water had more jagged edges. What MOST LIKELY caused the rocks to be smooth instead of rough?
A) birds pecking at the rocks
B) fish swimming over the rocks
C) the sun shining on the rocks
D) waves crashing down on the rocks
20)
Deposition is a process that involves wind carrying sediment and then depositing it in a particular place. One common beach sight formed by deposition is a
A) reef.
B) sand dune.
C) sand castle.
D) barrier island.
21)
batteries properties
Battery Brand average life cost
A 12 hours $0.50
B 18 hours $2.00
C 24 hours $3.50
If a battery is needed for a smoke detector where the biggest priority is for the device to last as long as possible, then which brand is the best choice?
A) Battery A
B) Battery B
C) Battery C
D) All 3 brands are equally good choices.
Eliminate
23)
About 21% of Earth's atmosphere is composed of oxygen. Oxygen can combine with other substances. The chemical reaction of oxygen with other substances is called oxidation and it is a source of chemical weathering. The building on the left has undergone oxidation. Compare the picture on the left with the picture on the right. The building has changed. The rock has changed much like the building.
Describe how the rock on the right has changed over time.
A) Chemical weathering has happened due to acid rain in the area.
B) Oxygen has chemically reacted with minerals in the rock; oxidation has occurred.
C) Water in the atmosphere has caused the rock to rust; it has physically weathered.
D) Physical weathering has taken place and the rock is broken down into smaller pieces.
Eliminate
Amit flies due east from san Francisco to Washington D. C, a displacement of 5600km. He then fliesfrom Washington D. C to Boston, a displacement of 900 km at an angle of 55.0°east of north. What is amit's total displacement?
Amit's total displacement can be calculated by using vector addition and the Pythagorean theorem to account for the different directions of his two journeys.
Explanation:To calculate Amit's total displacement, we need to treat his journey in two segments. The first segment is his displacement from San Francisco to Washington D.C., a flat displacement of 5600km due east. The second segment is his displacement from Washington D.C. to Boston, a displacement of 900km at an angle of 55.0° east of north.
Because displacement is a vector, meaning it has both magnitude (distance) and direction, we can't simply add the two displacements together. Instead, we use vector addition to calculate the total displacement. First, we separate the 900km displacement into its eastward and northward components. The eastward component is 900km * cos(55.0°), and the northward component is 900km * sin(55.0°).
To get the total eastward displacement, we add the eastward displacement from San Francisco to Washington D.C. (5600km) and the eastward component of the displacement from Washington D.C. to Boston. The total northward displacement is just the northward component of the displacement from Washington D.C. to Boston, since Amit did not have any northward displacement in the first segment of his trip from San Francisco to Washington D.C.
The total displacement from San Francisco to Boston is then found by using the Pythagorean theorem on the total eastward and northward displacements. In other words, Amit's total displacement is the square root of (total eastward displacement)^2 + (total northward displacement)^2.
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A cat napping on a window sill demonstrates which scientific concept?
A) Force
B) Velocity
C) Inertia
D) Speed
What effect will the north pole of one magnet have on the north pole of another magnet.
A. REPULSIVE
B. ATTRACTIVE
C. COMBATIVE
D. NO EFFECT
2.Why are paperclips attracted to magnets?
A.The contain silver
B.They contain aluminum
C.They contain tin
D.They contain iron
3.What is the simplest requirement for an electromagnet?
A.A coil of electrified wire wrapped
B.A bar magnet and a power source
C.A coil of electrified wire
D.A length of electrified wire
please help for 20pts
2. Describe what would happen to both air temperature and soil temperature if cold weather were to pass through the area.
The air temperature would drop quickly compared to the soil because the difference between solid and gas. But the ground will stay cooler longer than the air because it contains it better than the air.
How kinetic energy and speed are related?
a rock sample will most likely contain ?
This U-shaped valley was produced by the action of a
A) river.
B) meteor.
C) glacier.
D) landslide.
This U-shaped valley was produced by the action of a glacier. Hence, option (C) is correct.
What is U-shaped valley?Glaciation creates u-shaped valleys, often known as trough valleys or glacial troughs. They are particularly typical of glaciation in mountains. In cross-section, they feature a distinctive U shape with steep, straight sides and a flat or rounded bottom (by contrast, valleys carved by rivers tend to be V-shaped in cross-section).
Glaciated valleys are created when a glacier slides down a slope while moving across it, scouring the valley as it goes. When the ice melts or retreats, the valley is left behind and is frequently covered in small rocks known as glacial till or glacial erratic that were carried by the glacier.
Hence, this U-shaped valley was produced by the action of a glacier.
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Approximately how old is the earth?
A) 4.5 trillion years
B) 4.5 million years
C) 4.5 billion years
D) 4.5 thousand years
A huge, jagged rock sits atop a windy cliffside. Over a period of many years, how will the rock MOST LIKELY change?
A) It will become larger and smoother.
B) It will become smaller and smoother.
C) It will become bigger and less smooth.
D) It will become smaller and less smooth.
It will become smaller and less smooth. Only because with the wind blowing sand or other other small items it will cause the rock to be pelted which will chip the surface, breaking and making the rock small and rougher
Answer:
Option (D)
Explanation:
Wind erosion will take place extensively as the cliff-side is exposed on the outcrop. Due to the wind erosion, the large, jagged rock will undergo the process of weathering where the softer parts of the rock will be eroded much rapidly in comparison to the harder parts, as a result of which the overall size of the rock will decrease and the surface will be uneven and somewhat rough. This will take place over a due course of time. The main agent that is responsible for erosion is the wind.
Thus, the given rock will become smaller and less smooth after a definite period of time.
Thus, the correct answer is option (D).
Name the blood vessels that carry blood from the upper and lower parts of your body
Answer:
superior vena cava and the inferior vena cava
Explanation:
The superior vena cava receives blood from the upper part of the body The inferior vena cava receives blood from the lower part of the body.Jack and Jill have a pail of water. Which action will cause the molecules of water to move faster?
Describe a theme-park ride that has constant speed but changing velocity.
Thank you!
What physical characteristic is the same for a particular substance regardless of the sample size .
Answer: The answer is melting point I think.
Explanation: I did the Performance Matters. I added a picture of the question just in case anyone else wants to answer.
melting wax
evaporating gasoline
freezing water
These changes are all examples of
A) nuclear changes.
B) physical changes.
C) chemical changes.
D) energy consumption.
A football player kicks a ball with a mass of 0.42 kg. The average acceleration of the football was 14.8 m/s square. How much force did the kicker supply to the football?
How would you measure the volume of a plastic pen? I’m thinking using the water displacement method but I’m not sure. In class we can only use length x widths height and water displacement.
Answer:
The ways you could find the volume of a plastic pen could be:
Archimedes principle Divide the pen into familiar geometric shapes.Explanation:
The two suggestions that I give you can apply to find the volume of a plastic pen, with the first method you only have to immerse the pen inside a volumetric container with a certain amount of water, then you look at the amount of water that increased in the container and that increase with respect to the initial value is the volume of the cylinder.
In the second way that I give you, you must divide the pencil into known figures to which you will calculate the volume separately, if it is a common pencil its initial part (where the tip is) you can resemble a cone and the body to a cylinder , so you would use the formulas:
Volume of a cone = 1/3 * PI * r ^ 2 * h Volume of a cylinder = PI * r ^ 2 * hWhere:
PI = 3.1416 approximately.
r = Radius.
h = Height.
With which you would have to measure with a ruler the values requested by the formulas and replace to calculate them.
why does trapped air in a vacuum flask reduce heat loss by conduction?
Answer:
Explanation:
The answers are:
1) D
2) B
3) D
4) C
5) A
6) A
7) D
8) D
9) A
10) B
11) C
12) C
13) C
14) B
15) B
Please Help
Scientists have observed earths tectonic plates move in predictable directions. What is the cause of this observation?
A. Uniform pressure inside earths forces the plates to move.
B. Uniform temperature inside earth forces the plates move.
C. Variations in temperatures inside earth forces plates to move.
D. Vibrations in the core forces the plates to move.
Answer:
C Variations in temperatures inside earth forces plates to move.
Explanation: its Approved 2021
I have a table that I recorded of my data and my partner's data
My table My partner's table
position (m) Time (s) position (m) time (s)
0m 0 0m 0
2m 2.30 2m 2.74
4m 4.28 4m 2.39
6m 5.00 6m 2.20
8m 5.89 8m 1.80
10m 6.59 10m 3.21
a. Explain how you can use your graph to figure out who had the fast average speed.
b. Explain how you can use your data table to figure out who had the faster average speed
c. Look at each person's line on the graph. How can you use the graph to tell whether you moved at a constant speed? Did you move at a constant speed? Did your partner?
d. Calculate each person's average speed in meters per second and in centimeters per second.
What is a main reason why the scientific model of atoms is considered a theory rather than a law?
It has been proven as a fact.
It has been changed over time.
It predicts but does not explain.
It has stayed the same for a long time.
HELP ME PLEASE!!!!
B. It has changed over time.
how many electrons does an element typically try to get on its outer level