Answer:
As the atmospheric pressure decreases with increase in altitude, when a sealed bag of chips is taken to higher altitude then the pressure of the gases inside the bag become greater than the outer atmospheric pressure and apply pressure on the side covering of the chips bag due to which the chips bag expand.
A 60 kg mass accelerates at 2 m/s2. What is the net force acting on it?
Answer:
120 newtons i think f=ma
Explanation:
HELP ME NO BOTS PLEASE!!!!!!!
Answer: A red light is reflected
Explanation:
Answer with full steps please!
Answer:
B
Explanation:
Because B/5
if i'm wrong sorry but i hope it's help^^
Lichens are not single organisms, but algae and fungi that function together. The algae use photosynthesis to make food for both organisms. The fungi produce digestive chemicals and absorb nutrients for both organisms.
How does the biological activity of lichens cause weathering in rocks?
Answer options with 4 options
A.
Lichens cause friction as they grow, which weathers the rocks.
B.
Lichens produce chemicals, which dissolve and weather the rocks.
C.
Lichens take in water, which freezes in cracks and weathers the rocks.
D.
Lichens absorb heat during photosynthesis, which weathers the rocks.
Answer:
B
Explanation:
Lichens also have significant impact in the chemical weathering of rocks by the excretion of various organic acids, particularly oxalic acid, which can effectively dissolve minerals and chelate metallic cations.
3. What type of potential energy does a stretched rubber band have?
Answer:
Elastic Potential Energy because a rubber band that is stretched has elastic potential energy, because when released, the rubber band will spring back toward its resting state, transferring the potential energy to kinetic energy in the process.
Explanation:
Explain how a book can have energy even if it is not moving.
Answer:
A World Civilization book at rest on the top shelf of a locker possesses mechanical energy due to its vertical position above the ground (gravitational potential energy).
to break the sound barrier, an airplane must travel faster than the speed of sound. approximately how fast does an airplane have to go to do this?
Answer:
~343 m/s
Explanation:
Because that is the speed of sound in dry air.
A 4.0 kg dog runs from one end of a 21 kg canoe to the other, a distance of 4.9 m. Assuming negligible water resistance, how far does the canoe move in metres?
The distance traveled by the canoe in the water is 0.93 m.
The given parameters;
mass of the dog, m = 4.0 kgmass of the canoe, = 21 kgdistance traveled by the dog, d = 4.9 mApply the principle of conservation of linear momentum to determine the distance traveled by the canoe;
[tex]m_1v_1 = m_2 v_2\\\\m_1(\frac{d_1}{t} ) = m_2(\frac{d_2}{t} )\\\\4(4.9) = 21(d_2)\\\\d_2 = \frac{4(4.9)}{21} \\\\d_2 = 0.93 \ m[/tex]
Thus, the distance traveled by the canoe in the water is 0.93 m.
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easy one giving brainly if correct
Answer:
c) Liquid
Explanation:
Liquid takes the shape of its container and has a specific volume. On the other hand, solid and gas don't.
when a force is applied to an object the work done is:
Answer:
Explanation: When a force is applied on an object, the work done is the product of the applied force and the displacement produced(distance moved) by the force...
Work=ForceXDisplacement
Is it possible to stop time
Answer:
NO
Explanation:
NO ES POSIBLE
What can be measured by acceleration? A. How much an object slows down B. How much an object speeds up C. If an object changes direction D. All of the above
Answer:
B
Explanation:
When you hear accelerate, it means to speed up. so, the correct answer would be B.
In addition, you can’t see inside the dummy’s skull, but if you could, what would his brain be doing?
I NEED ANSWERS ASAP!!!! Which of the following would accelerate faster with the same amount of force?
150 pound person on a skateboard
200 pound person on a skateboard
They all accelerate equally
300 pound person on a skateboard
150 pound person on a skateboard
The 150-pound person on a skateboard would accelerate faster with the same amount of force. Therefore, option (A) is correct.
What is acceleration?Acceleration of a body is demonstrated as the change of velocity with respect to time. The acceleration is a vector parameter as it carries both magnitude and direction. Acceleration is defined as the 2nd derivative of position w.r.t. time and the 1st derivative of velocity w.r.t. time.
According to Newton's 2nd law, the force is equal to the multiplication of the mass and acceleration of an object.
F = ma
and, a ∝ 1/m
From the above equation, we can say that acceleration (a) is inversely proportional to the mass (m) of the body.
In the given option the person with a mass of 150 pounds will accelerate faster with the same amount of force and the person with a mass of 300 pounds will accelerate the least.
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You travel 20 miles east in 2
hours. What is your velocity?
Answer:
10 mph
Explanation:
it just common sense
A block attached to a string moves in a circle as shown above.
Which of the arrows in the illustration above best shows the direction of the tangential velocity the object will have if it is released from the string?
A small insect smashes into the windshield of your car while you are zooming down the interstate. Which exerts the larger force; the bug on the car or the car on the bug?
Force is directly proportional to the mass of the body. The small insects weight so small thus the force exerted by the insect will be smaller. Thus the force exerted by the car is greater.
What is force?Force is an external agent acts on a body to change it from the state of rest or motion. Various kinds of forces include magnetic force, frictional force, nuclear force, gravitational force etc.
In physics, force is the product of mass and the acceleration. Thus force has the expression F = ma. Therefore, the force exerted from a massive body is greater than the force exerted from a lighter body.
The car is very large in comparison to the insect and it weighs a lot where, the weight of the insect and the force exerted by it is negligible. Hence, the force exerted by the massive body that is car is larger than that by the small insect.
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You have to make it balanced.
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Balanced chemical equation for the given reaction will be ~
[tex] \large \mathrm{\boxed{ \boxed{4\: Na + O_2} \rightarrow \boxed{ 2\;Na_2O}}}[/tex]
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
Ancient Greek history shows that winning at any cost was always the goal of sports.
A.
True
B.
False
PLEASE NO LINKS
Answer:
B.false
Explanation:
wining does not only depends on scoring a goal no
Ancient Greek history shows that winning at any cost was always the goal of sports. the statement is false.
what is goal ?Goal can be defined as something where an individual or a group of individual aim to achieve something, they might make an envision, plan and commit to achieve a desired objective within a finite time by setting deadlines.
goal can be denoted as an anticipated result that motivates a person to direct his/ her effort where the Persistence and patience are two important qualities to achieve one’s goals.
Goals van be specific, close-ended quantifiable objectives with a limited time period or achieving them, it can help to concentrate energy by defining what needs to be done and setting reasonable time limits for it,
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You carry a 20 kg suitcase upstairs, a distance of 4m. How much work did you do?
Please find attached photograph for your answer.
Hope it helps.
Do comment if you have any query
In each cylinder, draw the piston and the gas particles based on the temperature shown.
An arrow is launched from a bow with an initial horizontal velocity of 40
m/s and an initial vertical velocity of 62 m/s. What is the total initial vector
velocity of the arrow?
Answer:
V = (Vx^2 + Vy^2)^1/2 = (40^2 + 62^2)^1/2
V = 73.8 m/s
tan theta = Vy / Vx = 62/40 = 1.55
theta = 57.2 deg
HELPP EARTH SCIENCE PLS!! And thank you.
Answer:
a
Explanation:
Describe the effects of the unbalanced forces on each of these objects.
- A bicycle is moving in a straight line. There is an unbalanced force
opposite to the direction the bicycle is moving.
- A car is moving in a straight line. There is an unbalanced force in
the same direction as the car is moving.
- A ball is moving in a straight line. There is an unbalanced force
sideways to the direction the ball is moving.
Answer:
The unblanced force will start to pull the bicycle backward
The car will move faster in the direction that it is moveing
The ball will move off course sideways
Explanation:
The force will cause the motion in an object. The effects of the unbalanced forces on each of these objects can be,
A bicycle will move backward.A car will move in the same direction.A ball will have sideways due to unbalanced force.What is Unbalanced Force?Unbalanced force is defined as the forces which are not equal in magnitude. When two forces with different magnitudes are applied on an object from opposite directions, the object will start moving in the direction of the net force.
These forces result in the motion of an object.
Balanced forces are the forces which are equal in magnitude. When two forces with equal magnitude are applied on an object from opposite directions, the object will not start moving.
These forces does not result in the motion of an object.
Hence, this force will cause the motion in an object.
The effects of the unbalanced forces on each of these objects can be,
A bicycle is moving in a straight line. There is an unbalanced force in the opposite direction and the bicycle will move backward.A car is moving in a straight line. There is an unbalanced force in the same direction as the car is moving in the same direction.A ball is moving in a straight line. There is an unbalanced force sideways to the direction the ball is also moving in sideways.Learn more about Unbalanced force,
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How far has a dolphin traveled in kilometers if it swims for 1.8 h at 5.6 km/h ?
Answer:
distance = 6.26342 miles
Explanation:
how much heat energy is needed to raise the temperature of 50g of lead by 4.0°c
Explanation:
h=mcƦ
=50×0.129×4
=25.8j
In the game of shuffleboard, you push plastic disks forward and then release them so that they slide across a level playing surface. Once you release a disk, you are no longer pushing and it gradually skids to a stop. Its final position determines your score. As each disk skids to a stop, what becomes of the kinetic energy it had when you released it
Answer:
I believe it would then become potential energy.
Explanation:
The reader can infer from this passage that Archimedes' screws A. can be used to drill for underground minerals. B. have been replaced by the electric grain elevator. C. were the main reason Rome became a world power. D. can be operated without an electric power source.
Answer: the answer is D operated without an electric power source.
Explanation: got it right on the test!!
Answer: Answer D,
Can be operated without an electric powder source.
Explanation:
what is the scientific name for light bending when it strikes certain objects?
Answer:
refraction!
Explanation:
it's the bending of light. it makes it possible for us us have lenses, magnifying glasses, rainbows and other stuff
What is the cost of operating a 40 W light bulb for a year, if the cost of electricity is $0.10 per kWh
Answer:
$480 a year
Explanation:
