Answer:The velocity vector is constant in magnitude but changing in direction. Because the speed is constant for such a motion, many students have the misconception that there is no acceleration. ... For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating.
Explanation:
A small car with a mass of 800 kg is moving with a velocity of 30 m/s. What is the momentum of the car?
Required? Substitute and Solve
A. 2.67 kg-m/s
B. 24000 kg-m/s
C. 770 kg-m/s
D. 830 kg-m/s
Answer:
B. 24000 kg-m/s
Explanation:
Momentum equation: p = mv
p = 800 kg * 30 m/s = 24000 kg-m/s
!!!!!PLEASE ANSWER CORRECTLY!! I DESPERATLY NEED HELP!!!!!
Answer:
b
Explanation:
What is the momentum of a
ball that has a mass of 5kg and a velocity of 3.0m/s? *
Answer:
15 kg.m/sExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question we have
momentum = 5 × 3
We have the final answer as
15 kgm/sHope this helps you
Of all the planets in our solar system, Jupiter has the greatest gravitational strength. If a 1.5 kg pair of running shoes would weigh 34.65 Newtons on Jupiter, what is the strength of gravity there.
Answer:
gₓ = 23.1 m/s²
Explanation:
The weight of an object is on the surface of earth is given by the following formula:
[tex]W = mg[/tex]
where,
W = Weight of the object on surface of earth
m = mass of object
g = acceleration due to gravity on the surface of earth = strength of gravity on the surface of earth
Similarly, the weight of the object on Jupiter will be given as:
[tex]W_{x} = mg_{x}[/tex]
where,
Wₓ = Weight of the object on surface of Jupiter = 34.665 N
m = mass of object = 1.5 kg
gₓ = acceleration due to gravity on the surface of Jupiter = strength of gravity on the surface of Jupiter = ?
Therefore,
[tex]34.65 N = (1.5 kg)g_{x}[/tex]
[tex]g_{x} = \frac{34.65 N}{1.5 kg}[/tex]
gₓ = 23.1 m/s²
Optimistic people:
A. see the glass as half full.
B. attribute their successes to their own abilities.
C. have a higher chance of becoming depressed.
D. attribute their success to outside influences.
Answer:
A or B im prettu sure
Explanation:
a is a very commom answer so id go with that
Optimistic people see the glass as half full. The correct option is A.
What is optimism?Optimists look for the bright side of things. They anticipate a positive outcome. They believe they have the skill and ability to bring about positive change.
A person can also be generally optimistic; as part of their personality, they are always looking on the bright side and expecting the best.
An optimist is someone like this. Optimism is a general positive attitude that sees the glass as half full.
Optimism is a positive, hopeful outlook on the future, on yourself, and on the world around you. It is an important component of resilience, the inner strength that helps you get through difficult times. Optimism, by definition, helps you see, feel, and think positively.
Thus, the correct option is A.
For more details regarding optimism, visit:
https://brainly.com/question/9824989
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Which statement is true about rubber, a polymeric material?[1] A.A normal rubber band breaks when the strain is greater than 1. B.A normal rubber band breaks when the strain is less than 10%. C.When a small amount of sulfur is added, to provide cross-links between molecules in rubber, the elastic limit is reduced. D.When a small amount of sulfur is added, to provide cross-links between molecules in rubber, the ultimate tensile stress is reduced.
Answer:
A
Explanation:
Which statement is true about rubber, a polymeric material?
A.) The normal rubber band will break when the strain is greater than 1. Because according to the srain formula,
Strain = extension / original length.
For strain to be greater than one, the extension must have been greater than the original length.
B.) A normal rubber band breaks when the strain is less than 10%. This is not true
C.When a small amount of sulfur is added, to provide cross-links between molecules in rubber, the elastic limit is reduced. Surfur increases the elastic limit
D.When a small amount of sulfur is added, to provide cross-links between molecules in rubber, the ultimate tensile stress is reduced. This is not true. Surfur increases the tensile stress of the elastic material
The correct answer is therefore A
If a book with a mass of 5.0 kg, is pushed across a table with a net force of 30. N, what is its acceleration?
Answer:
[tex]a=6\ m/s^2[/tex]
Explanation:
Given that,
Mass of a block, m = 5 kg
It is pushed with a net force of 30 N
We need to find its acceleration. The net force acting on an object is given by :
F = ma
a is the acceleration of the block
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{30\ N}{5\ kg}\\\\a=6\ m/s^2[/tex]
So, the acceleration of the block is [tex]6\ m/s^2[/tex].
The first one playing chinese garter will be chosen by doing
a. save
b. jack en poy
c. stretching
d. mother/father
e.one
f. "it" team
Answer:
B: jack en poy
Explanation:
Rock paper scissors is a hand game played between 2 people and mostly used as a method of fairly choosing between two people just like the way flipping a coin, drawing straws, or even throwing dice is used to select a choice at times to settle a dispute or make an unbiased decision.
Now the Chinese garter is a popular game among Filipino children that requires flexibility, balance & coordination. This game is played in such a way that it is designed to revolve about an ordinary garter which is usually about two to three yards long and can be brought from sewing store.
Now, to select the first one to play, as stated above, a rock paper scissors game can be used to make an unbiased choice of who to start.
However, among Philipinos, this rock paper scissors game is called "jack en poy"
Thus, option B is correct
2. When can you legally use your cell phone while
driving?
A. Never
B. Whenfmyaiting for a train to pass at a closed gate
C. In case of an emergency
Answer:
never
Explanation:
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What acceleration will you give to a 24.3 kg box if you push it with a force of 85.5 N?
Heya!!
For calculate aceleration, lets applicate second law of Newton:
[tex]\boxed{F=ma}[/tex]
Δ Being Δ
F = Force = 85,5 N
m = Mass = 24,3 kg
a = Aceleration = ?
⇒ Let's replace according the formula and clear "a":
[tex]\boxed{a=85.5 \ N / 24.3\ kg}[/tex]
⇒ Resolving
[tex]\boxed{ a = 3.51 \ m/s^{2}}[/tex]
Result:
The aceleration is 3,41 meters per second squared (m/s²)
Good Luck!!
This problem will require you to make some assumptions, so be sure that your assumptions are clear. You have dinner reservations at Atrio in Brickell, but the elevator is broken. If you decide to take the stairs does that entitle you to eat the entire Chocolate Fondue for Two dessert by yourself? The Chocolate Fondue for Two is 1 lb. of dark chocolate, served with a variety of fruits for dipping.
Answer:
No
Explanation:
The statement is implying that if you do a certain amount of work, you're entitled to do a certain amount of work. Sometimes, work doesn't entitle you a reward.
what are the benefits and harms of the james clerk maxwell discovery to humanity?
Answer:
With his work, Maxwell unified electricity, magnetism and light, which are known as «Maxwell's synthesis.» Such a synthesis set a milestone in the history of the unification of forces that were so powerful that many nineteenth-century physicists thought the physical laws were already sufficiently comprehended.
Explanation:
hope this helps and can I get brainliest pls
Barycenter is not the center of mass of two or more celestial bodies.
Answer:
barycenter is the center of mass of two or more bodies that orbit one another and is the point about which the bodies orbit. It is an important concept in fields such as astronomy and astrophysics. The distance from a body's center of mass to the barycenter can be calculated as a two-body problem.
Explanation:
a radioactive tracer has a half-life of 2 hours. how much of a 2500g sample will be avalible after 18 hours
Answer:
i believe the answer is 2.44140625 grams remaining
Answer:
4.88g
Explanation:
We must first calculate how many half-life there are in 18 hours, knowing that each half life takes 2 hours.
18/2 = 9 Half life
Now, knowing this we can calculate the number of grams by applying 9 times the half life.
2500/2= 4.88 grams
Which means that after 18 hours there are 4.88 grams.
HELP HELP in order for energy to transform it must be able to do what?
Answer:
1 thermal to nuclear to mechanical to electrical. 2 thermal to mechanical to nuclear to electrical. 3 nuclear to mechanical to electrical to thermal. 4 nuclear to thermal to mechanical to electrical.
Which object might have the pattern of magnetic domains shown in the image?
A. A building beam made from iron, not near a magnet.
B. A silk fabrics near a magnet.
C. A fabric made from silk, not near a magnet.
D. An iron beam near a magnet.
Answer: A: a building beam made from iron
Explanation:trust
What is the value of n?
Answer:
THE ANSWE IS C
81
Explanation:
how much power is used for machine does 28J of work and 7 seconds
Answer:
3N
Explanation:
Convert 15*c in Fahrenheit
Answer:
it is 59 degrees Fahrenheit
I'm pretty sure it's 59 °F
30 POINTS!!!! PLEASE HELP ME!!!!!
Answer:
left column: If you can see some animals, you may see a bird with a fruit or nut in its beak. Once it lets go of the object, it drops due to gravity. If a fruit drops from a tree with examples like in Newton's famous example, it is also due to gravity.
Explanation:
withxamples too.)Right column: Think about it like the moon, you wouldn't be able to walk, just float around. If to simply try to put food on a plate, it wouldn't stay. Sitting down at your table to attend class. You'd float away along with your laptop.(you come up wiht e
The chart shows data for a moving object.
Time (s)
Velocity (m/s)
AN
8
8
8
Which conclusion is best supported by the information
in the chart?
The object has negative displacement.
The object has negative acceleration
The object does not have displacement
The object is not accelerating.
6
Answer:
number 2
Explanation:
Based on Newton's 3rd law, the force pairs always act on what?
(someone please answer i need help)
Answer:
Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.
Explanation:
Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.
Vector v is plotted below. What is the length of the x-component
of v?
Answer:
The length of the x-component of v is 2
Explanation:
Vectors in Two Dimensions
A vector in the plane can be represented as its two components in the rectangular coordinates (x,y), assuming its initial point is the origin (0,0).
The vector plotted in the image provided has the components (-2,5).
The x-component is -2 and the y-component is 5.
The length of the component is the magnitude or absolute value of the x-coordinate, thus the length of the x-component of v is 2
I WILL MARK BRAINLIEST!
A 15 kg wagon is accelerated by a constant force of 80.0 N from a speed of 5 m/s to 15 m/s. For how long was the force acting?
a) 1.0 second
b) 3.1 second
c) 0.05 second
d) 1.9 second
Answer:
I would say b) 3.1 second.
Explanation:
Please select the word from the list that best fits the definition
equals the output work divided by the input work
input force
efficiency
mechanical advantage
output force
compound machine
Answer:input work
Explanation:
Answer:
thankssssssssss\
Explanation:
Maya kicks a soccer ball 40 N towards east. At the exact same time, Casey kicks
the same ball toward west. The resultant force of the soccer ball is about 36 N
east. The force that Casey kicks the soccer ball toward west is
Answer:
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Explanation:
KJ.KHG<DCŞJHJdjhgjöfhds DCSLÇKÖJMNHBGEVCYRWX
You fire a paintball from a paintball gun straight up into the air at 25.0 m/s What is the instantaneous velocity at the top of its flight?
Answer:
The instantaneous velocity at the top of its flight is v = 0 m/s
Explanation:
From the question we are told that
The initial velocity is u = 25.0 m/s
Generally an instantaneous velocity can be defined as the velocity of an object at an instant of time period during its motion, , generally the velocity of a object at it maximum height is 0 m/s hence the instantaneous velocity of the paintball at the top of its flight is 0 m/s
Which statement BEST describes the difference between speed and velocity?
A
Speed and velocity are in units of meters per second.
B.
Speed is distance divided by time, and velocity is total distance.
C.
Speed is how fast an object is moving, and velocity includes speed and direction.
D
Velocity is how fast an object is moving, and speed includes speed and direction.
C
Answer:
Because velocity is a vector quantity and also it's described by unit plus direction.
What are the units for impulse?
A. kg•m/s
B. kg/s
C. kg•m^2/s
D. kg m/s^2
Answer:
A. kg•m/s
Explanation:
Please select the word from the list that best fits the definition
ratio of output force to input force
input force
efficiency
mechanical advantage
output force
compound machine
