2 is an instep if im not mistaken
Which sphere forms Earth's outermost layer?
Atmosphere
Biosphere
Cryosphere
Hydrosphere
Answer:
The Atmosphere
Explanation:
a continental-continental plate collision causes what to form
PLEASE HELP QUICK I WILL GIVE BRAINLIEST AnswerTwo descriptions about physical quantities are given below: Quantity A: It is unaffected by the location of an object in space. Quantity B: It can be measured in kilograms. What quantities are these most likely describing? Both Quantity A and Quantity B are mass. Both Quantity A and Quantity B are weight. Quantity A is weight and Quantity B is mass. Quantity A is mass and Quantity B is weight.
Explain one way the water cycle affects climate. Use 3-4 Sentences to explain. (Complete sentences)
Answer:
The water cycle will affect the climate by causing rain and snow.
Explanation:
if temperatures increase more rainfall will occur because more water evaporates in the air.
Select all that apply. The three types of rock in the Earth's crust are _____.
igneous
basalt
limestone
granite
metamorphic
sedimentary
Final answer:
The Earth's crust is composed of igneous, metamorphic, and sedimentary rocks, examples of which include granite (igneous), basalt (igneous), and limestone (sedimentary).
Explanation:
The three types of rock in the Earth's crust are igneous, metamorphic, and sedimentary. Igneous rocks, like granite and basalt, form when magma or lava cools and solidifies. Sedimentary rocks form from the compaction and cementation of various substances, including pre-existing rock fragments or mineral precipitation. Limestone is an example of a sedimentary rock formed from precipitated minerals. Metamorphic rocks arise from the transformation of existing rock types through heat and pressure, resulting in a change in mineral composition or structure.
carbon burns with oxygen to produce carbon dioxide gas. which of these shows the correct chemical reaction?
A. C + O = CO2
B. C + O2 ------> CO2
C. C, O, CO2
D. CO2 = C + O
Answer:
B. C + O2 ------> CO2
Explanation:
i took the test
how is interia related to Newton's first law of motion
Final answer:
Inertia is the property of an object to maintain its state of motion or rest unless acted upon by a net external force, as described by Newton's first law of motion. This law, also known as the law of inertia, indicates that an object will continue in its state of constant velocity unless a force causes a change.
Explanation:
How is Inertia Related to Newton's First Law of Motion?:
Inertia is directly related to Newton's first law of motion, often referred to as the law of inertia. Newton's first law states that a body at rest remains at rest, and a body in motion remains in motion at a constant velocity unless acted upon by a net external force. This tendency of an object to resist changes in its state of motion or rest is known as inertia. Essentially, inertia is the reason why an object remains at rest or carries on moving at the same speed in a straight line unless a net force acts upon it.
Newton's laws are fundamental in the study of motion under the influence of forces, particularly in inertial frames of reference. Forces, which are described by Newton's laws, are always vectors with both magnitude and direction, and arise from interactions among objects. Newton's first law serves as a definition of an inertial frame of reference, and thus, any frame where the law is valid is considered inertial.
Two objects of the same mass are in a room. At which of the following distances will the greatest gravitational force be exerted by one object on another?
2 m
4 m
6 m
8 m
Answer:
2 m
Explanation:
Because there will be the greatest amount of force when they are closest together.
The distance at which the greatest gravitational force is exerted by one object on another if Two objects of the same mass are in a room should have the shortest distance, so option A is correct.
What is the gravitation force?The universal force of attraction operating on all matter is known as gravity, usually spelled gravitation, in mechanics. The weakest known force in nature, it is by far and does not influence how everyday matter's internal properties are determined.
Measurements of gravity around the Earth, other planets, and the Moon, as well as experiments on the nature of gravitation, have greatly improved as a result of the launch of spacecraft and the research that has resulted from it.
The formula for the gravitational force is inversely proportional to the square of the distance between two objects,
Thus, to get the maximum gravitational force, the mass is to be at the lowest separation.
Therefore, the distance at which the greatest gravitational force be exerted by one object on another if Two objects of the same mass are in a room should have the shortest distance.
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The fish shown above is the anglerfish. The stalk in front of its eyes is a flashing light that it uses to lure prey near its mouth. This is because the biome that it lives in is very dark. Where are anglerfish likely to be found?
A) an estuary
B) a freshwater lake
C) the abyssal zone of the ocean
D) the pelagic zone of the ocean
The right option is; C) the abyssal zone of the ocean
The anglerfish are likely to be found in the abyssal zone of the ocean.
The abyssal zone is the bottomless layer of the pelagic zone of the ocean that has the bathyal zone located on it. The abyssal zone is at depths of 4,000 to 6,000 metres, and it remains permanently in darkness. This zone is a food limited environment because it lacks nutrients. The temperature of the zone is around 2 to 3 °C and has continuous cold.
A quarterback takes the football from the line of scrimmage and runs backward for 15 meters, he then runs sideways parallel to the line of scrimmage for 12 meters. At this point he throws the ball 50 meters perpendicular to the line of scrimmage where it is caught by the receiver. How far is the football from its original position?
An object is dropped from a platform 100 feet high. Ignoring wind resistance, what will its speed be when it reaches the ground?
Please explain.
_____ ft/s
6400
2000
80.
44
Answer:
80 ft/s
Explanation:
Use III equation of motion
V^2 = U^2 + 2g h
Here, U = 0, g = 32 ft/s^2, h = 100 ft
V^2 = 0 + 2 × 32 ×100
V^2 = 6400
V = 80 ft/s
A stopped car reaches 60 meters per second in 12 seconds. What is the acceleration?
Which statements describe physical weathering? Select all that apply.
A. Two rocks hit against each other in a fast-flowing stream and break apart.
B. Oxygen and water change the compostion of the minerals in a rock
C. Small rocks are pushed together when a mole digs an underground den
D. Mosses grow on a rock and produce acids that wear away the rock over time.
Two rocks hit against each other in a fast-flowing stream and break apart. Mosses grow on a rock and produce acids that wear away the rock over time. These statements describe physical weathering. Therefore, option A and D are correct.
What is physical weathering ?Physical weathering, often known as mechanical weathering, is the process that fractures rocks without altering their chemical makeup. The following instances show physical weathering: water moving quickly. For brief periods of time, swiftly rushing water has the ability to raise rocks out of the streambed.
Rocks break down into tiny fragments due to abrasive weathering processes like wind and water. Exfoliation weathering rocks shatter and expand as pressure from unloading is relieved. As water freezes and expands, frost-wedging rocks crack.
When a rock is subjected to physical processes like temperature changes or exposure to the effects of wind, rain, and waves, physical weathering takes place.
Thus, option A and D are correct.
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Final answer:
Statements A and C describe physical weathering, which involves the purely physical breakdown of rocks, such as through collision in a stream or animal activity, without altering their chemical composition.
Explanation:
The question asks which statements describe physical weathering. Physical weathering, or mechanical weathering, involves the breakdown of rocks into smaller pieces without changing their chemical composition. Examples of physical weathering include the expansion and contraction of rocks due to temperature changes, the abrasive action of water or wind, and biological factors like plant roots breaking rocks apart.
A. Two rocks hit against each other in a fast-flowing stream and break apart.
C. Small rocks are pushed together when a mole digs an underground den.
Statement A is an example of physical weathering because it describes the physical action of rocks breaking apart due to collision in a stream. Statement C also illustrates physical weathering, showing how animal activity can physically move and potentially break rocks. In contrast, statements B and D describe chemical weathering, which involves the chemical alteration of rocks, such as mineral changes through oxidation or the action of acids.
The electrons that produce the picture in a
TV set are accelerated by a very large electric
force as they pass through a small region in
the neck of the picture tube. This region is
1.6 cm in length, and the electrons enter with
a speed of 1 × 10^5 m/s and leave with a speed
of 2.5 × 10^6 m/s.
What is their acceleration over this 1.6 cm
length?
Answer in units of m/s^2
.
What is the unit of measure for density?
Answer:
g/cm^3
Explanation:
grams is the unit of mass and cm cubed is the unit of volume.
the equation for density is mass over volume (d=m/v)
(5th grade work) why Is light refracted as it travel from one transparent medium to another
an object falls from a high building and hits the ground in 9.0 seconds. ignoring air resistance, what is the distance that it fell
The object fell a distance of 396.9 meters before hitting the ground.
To calculate the distance an object falls in a given time ignoring air resistance, we use the formula for the distance covered under constant acceleration: d = rac{1}{2} g t^2, where d is the distance, g is the acceleration due to gravity (
9.8 m/s2), and t is the time in seconds. Substituting the given time of 9.0 seconds into the equation, the distance is calculated as d = rac{1}{2} imes 9.8 imes 9.0^2, which equals 396.9 meters. This equation is derived from basic kinematic principles that govern the motion of objects in free fall, assuming gravity is the only force acting on the object.
A satellite with a mass of 290 kg moves in a circular orbit 3.00 107 m above the Earth's surface. What is the speed of the satellite if the force on the satellite is 87.4 N?
The speed of the satellite is approximately [tex]\(3311 \, \text{m/s}\)[/tex] when the force acting on it is 87.4 N.
The gravitational force [tex](\(F_{\text{gravity}}\))[/tex] acting on the satellite is given by [tex]\(F_{\text{gravity}} = \frac{GMm}{r^2}\)[/tex], where [tex]\(G\)[/tex] is the gravitational constant, [tex]\(M\)[/tex] is the mass of the Earth, [tex]\(m\)[/tex] is the mass of the satellite, and [tex]\(r\)[/tex] is the distance from the center of the Earth to the satellite.
The centripetal force [tex](\(F_{\text{centripetal}}\))[/tex] required for circular motion is [tex]\(F_{\text{centripetal}} = \frac{m v^2}{r}\)[/tex], where [tex]\(v\)[/tex] is the speed of the satellite.
In a circular orbit, the gravitational force provides the centripetal force, so [tex]\(F_{\text{gravity}} = F_{\text{centripetal}}\)[/tex]:
[tex]\[\frac{GMm}{r^2} = \frac{m v^2}{r}\][/tex]
Solve for \(v\):
[tex]\[v = \sqrt{\frac{GM}{r}}\][/tex]
Now, substitute the given values:
[tex]\[v = \sqrt{\frac{(6.67 \times 10^{-11} \, \text{m}^3/\text{kg}\cdot\text{s}^2) \times (5.97 \times 10^{24} \, \text{kg})}{(3.00 \times 10^7 \, \text{m} + 6.37 \times 10^6 \, \text{m})}}\][/tex]
Calculating the expression to find the speed of the satellite. I'll do the math for you.
[tex]\[v = \sqrt{\frac{(6.67 \times 10^{-11} \, \text{m}^3/\text{kg}\cdot\text{s}^2) \times (5.97 \times 10^{24} \, \text{kg})}{(3.00 \times 10^7 \, \text{m} + 6.37 \times 10^6 \, \text{m})}}\][/tex]
[tex]\[v = \sqrt{\frac{(6.67 \times 10^{-11} \times 5.97 \times 10^{24})}{(3.00 \times 10^7 + 6.37 \times 10^6)}}\][/tex]
[tex]\[v = \sqrt{\frac{3.9879 \times 10^{14}}{3.637 \times 10^7}}\][/tex]
[tex]\[v \approx \sqrt{1.097 \times 10^7}\][/tex]
[tex]\[v \approx 3311 \, \text{m/s}\][/tex]
Therefore, the speed of the satellite is approximately [tex]\(3311 \, \text{m/s}\)[/tex] when the force acting on it is 87.4 N.
If this experiment is repeated at a place 10 kilometers above the sea-level, the acceleration due to gravity g (exp) is expected to:
a. increase.
b. decrease.
c. remain constant.
The acceleration due to gravity, or g (exp), will decrease if the experiment is conducted 10 kilometers above sea level. This is because the force of gravity reduces as you move further from the Earth's surface.
Explanation:The acceleration due to gravity, or g (exp), is expected to decrease if the experiment is repeated at a place 10 kilometers above the sea-level. This is because the force of gravity decreases as the distance from the center of the Earth increases.
Essentially, the further you move away from the Earth's surface, the weaker the gravitational force gets. This is due to the fact that gravity is dependent on distance. So, being 10 kilometers above sea level would result in a slightly lower acceleration due to gravity.
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If you opened the valve on a bicycle tire, what would happen to the air inside of the tire? Why do you think that would happen. I need a full explanation in the science version.
If you opened the valve on a bicycle tire, the air inside of the tire will come out and the pressure it exert will be less.
Why does the air filled in a bicycle to keep it tight?When air is pumped into a bicycle tube, the tube gets inflated due to the air pressure exerted by the collisions of gas molecules in air with the inner walls of the rubber tube. This air pressure makes the tyres feel hard.
What causes air pressure to decrease in tires?When the temperature cools down, the air within the tire shrinks. In the same way, when the temperature rises, the air within the tire expands.
Due to the air being compressed in a small space, the air is pressurized and when the valve is open it causes a loss in pressure making the air gush out.
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The Solar System is made up of eight planets, numerous comets, asteroids, and moons, and the Sun. The force that holds all of these objects together is _______.
A.
magnetism
B.
tension
C.
electromagnetic attraction
D.
gravity
the force is gravity holding them
Scientific experiments are specially designed to test explanations for an observed phenomenon. A student decides to conduct an experiment to determine the effect that the amount of time spent in the sunlight has on the overall growth of a plant. The student will conduct the experiment using two identical plants that will only spend different amounts of time in the sunlight. All other aspects needed for growth will remain identical for each. In the experiment described, what would the amount of water given to each plant be considered? a. an observation b. a dependent variable c. an independent variable d. a control or constant
Answer:
D. a control or constant
Explanation:
Just took it
The amount of water given to each plant would be considered an independent variable. Therefore option C is correct.
An independent variable is a factor that the researcher deliberately manipulates or changes in an experiment to observe its effect on the dependent variable.
In this case, the independent variable is the amount of time spent in the sunlight. The researcher intentionally varies the exposure to sunlight between the two plants.
Therefore, the amount of water given to each plant is a control or constant, while the amount of time spent in the sunlight is the independent variable in this experiment.
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IM LITERALLY CRYING CUZ I DONT KNOWTHIS AND IM SO FUSTRATED SO PLZ HELP I BEG OF U
On Earth, Yancy hits a golf ball as hard as he can. The golf ball flies 150 meters before hitting the ground. About how far would the golf ball fly if Yancy hit it on the surface of Mercury with exactly the same amount of force and in the same direction?
(Ignore the air resistance on both planets.)
A.
less than 150 meters
B.
more than 150 meters
C.
150 meters
D.
150 yards
Answer:
B.
more than 150 meters
Explanation:
As we know that the range of projectile motion on the surface of earth is given by the formula
[tex]R = \frac{v^2sin(2\theta)}{g}[/tex]
so here on the surface of earth the gravity is given as g = 9.8 m/s/s
now if the golf ball is hit on the surface of earth then it range is given as R = 150 m
while if we hit the ball at surface of mercury then on the surface of mercury the gravity will be g = 3.7 m/s/s
so due to decrease in the magnitude of gravity the range on the surface of mercury will be more than 150 m
Answer:
B. More that 150 meters.
Explanation:
:)
-Speed -Mass -Acceleration -Force
A (blank) is a push or pull between objects
Which of the following forces is responsible for keeping the planets in orbit around the Sun?
A.
magnetism
B.
electromagnetic force
C.
gravity
D.
friction
Can someone help me please
the state of matter that can change shape but not volume is
a. gas
b. liquid
c. solid
d. plasma
How are galaxies organized and distributed within the universe
Answer:
The answer is: Many are associated in pairs, trios, groups or clusters, and their distribution in filamentary structures.
Explanation:
Galaxies rarely appear isolated and their distribution in the Universe is not uniform. Many are associated in pairs, trios, groups of some tens or clusters of up to a few thousand. These groups are held together by gravitation.
The large-scale distribution of galaxies seems to indicate that they are concentrated along large filamentary structures.
The answer is: Many are associated in pairs, trios, groups or clusters, and their distribution in filamentary structures.
Use the diagram to answer the question.
Number of Chirps per Minute
Cricket 15 ° C 20 ° C 25 ° C
1 91 135 180
2 80 124 169
3 89 130 176
4 78 125 158
5 77 121 157
Average 83 127 168
Which statement indicates a reasonable conclusion based on the data from this experiment?
Decreasing the number of chirps causes the temperature to drop.
Cricket chirping increases with an increase in temperature.
Decreasing the temperature increases the number of chirps.
Temperature can be increased by increasing the number of chirps.
Answer: Cricket chirping increases with an increase in temperature.
Explanation:
The independent variable in the experiment is the variable which can be altered, manipulated and changed so as to determine it's influence over the dependent variable, which is the outcome of the experiment.
Here in the given experiment, the number of chirps is the dependent variable which is increasing due to the increase in the temperature which is the independent variable.
your shopping cart has a mass of 65 kilograms. in order to accelerate the shopping cart down an aisle at 0.3 m/sec squared , what force would you need to use or apply to the cart