In the acceleration versus time graph above, what is the change in
velocity from 0 to 2s?
Answers
Hello!
[tex]\large\boxed{4 m/s}[/tex]
Find the change in velocity by finding the area under the line in an acceleration v. time graph:
We can divide the area underneath the interval 1 - 2 seconds into a rectangle and a triangle. Use the formulas:
A = l × w
A = 1/2(b · h)
We can solve for the rectangle first:
A = 2 × 1 = 2
Do the remaining area using the formula for a triangle:
A = 1/2 (2 · 2) = 2
Add the areas together:
2 + 2 = 4 m/s.
The Δv (change in velocity) is 4 m/s.
Related Questions
pins accompained by a ball bowling dates back to what era
Answers
Please help would it be 10?
Answers
Answer:
10N
Explanation:
Identify the type of motion that occurs when a body moves around its own center of mass.
circular
revolution
rotation
resolution
Answers
Answer:
circular
Explanation:
2. An 873 kg dragster accelerates at a rate of 44.6 m/s during a race.
a. What is the magnitude of the net force exerted on the dragster during this time?
Known (Given):
=
Unknown:
Fnet =
Equation:
Fret=ma (or m*a)
Solution:
Answers
Answer:
38,673.9NExplanation:
According to newton's second law:
Force = mass * acceleration
Given
Mass = 873kg
acceleration = 44.66m/s²
Magnitude of the force is expressed as;
F = ma
F = 873 * 44.6
F = 38,673.9N
Hence the magnitude of the net force exerted on the dragster during this time is 38,673.9N
Hardin electronic corporation is designing a new cell phone, they need a solid material that will insulate the phone and product their users from electric shock. Which material would best fit the needs of Hardin engineers A. A non-metal B. A metalloid C. A metal D. A semiconductor
Answers
Answer:
A
Explanation:
The material that would best suit Hardin electronic corporation's need would be a non-metal.
Non-metals are naturally occurring substances or materials that lack the properties of metals. In other words, non-metals are poor conductors of heat and electricity, unlike metals.
Solid non-metals are, therefore, used as insulators in the design of materials. Hence, the best material for Hardin electronic corporation to use that will insulate the phone and protect their users from electric shock would be a non-metal.
The correct option is A.
During a chemical reaction the reactants are re-arranged into new substance products true or false
Answers
Answer:
True
Explanation: Magic
What role do electromagnets play in making a motor spin?
Answers
Answer:
I'm going to try to explain it to you easy as possible so basically when a motor is placed between two poles of another magnet a current from a voltage flow to the coil and a magnet field is produced around the electromagnetic and the poles of the magnet interact with the poles from the electricmatic causing the motor to turn in more coils growing stronger into the motor
In baseball/softball how many players play in the field at one time?
Answers
Answer:
10 players
Explanation:
Help me please :))))))
Answers
Answer:
first one is d second is a
Explanation:
hope this helps luv
A cannonball is shot up in the air with a vertical speed of 24 miles what is the cannon balls vertical speed just before it hits the ground?
Answers
Answer:
I think it will back towards the earth because earth gravitional field will attract to Wards
As the distance between two charged particles increases, the force of attraction __________(increases/decreases). This is a(n) __________ (direct/indirect) relationship. Explain your evidence and reasoning with observations from the simulation.
Answers
Answer: decreases.
direct.
Explanation:
when you have two objects which are far apart from each other, when the distance increases the forces of attraction decreases and vice versa when the distance decreases the forces of attraction also increases.
this is a direct relationship, from careful observation and monitoring of the simulation, a pattern is noticeable by which an increase in one variable causes an opposite effect on the other variable.
what is gram used to measure
A. volume
B. Mass
C. distance
D. Time
Answers
Answer:
measure what
Explanation:
?????????????
Answer:
B. Mass
Explanation:
If the velocity of a car is 44 m/s west, how far can it travel in 0.80 hours?
Answers
Answer:
try typing this into brainly. i just took my phyics exam and i think that was one i found
Where does the kinetic energy people get during the sport come from?
Answers
Answer:
kinetic is the stored energy being released from being dormant
Explanation:
Answer:
kinetic is the stored energy being released from being dormant
Explanation:
i copied
PLSSSSSSSS SOMEONE HELP ME WITH THIS ONE!!
Answers
Answer:
D
Explanation:
At the other end of the spectrum toward red, the wavelengths are longer and have lower energy.
Jessica did an investigation about the states of matter. As part of the investigation, Jessica wanted to change a liquid into a solid. What must she do to bring about this change in state?
place the liquid in a different container
A
B
stir the liquid as quickly and thoroughly as possible
C
remove energy from the liquid so that its particles slow down
D
increase the energy of the liquid so that its particles move faster
Answers
Answer:
D : Increase the energy of the liquid so that its particles move faster
Explanation:
Sorry the other guy was wrong can i have brailiest please.
Is it healthy to be sad all the time?
1.sometimes
2. no
3.yes
Answers
Answer:
my answer would be NO. it is not healthy
Answer:
2. No.
Explanation:
Absolutely not, think of one time being sad has ever helped you in a situation. The only thing sadness has ever done is make you not want to go anywhere, constantly eat, and stay in your bed.
If you're sad all the time, that could mean depression, and bottling up your depression could eventually lead to some form of hurting yourself, or someone you love, it may even lead to your death.
Whatever's making you sad, you need to address the situation and not bottle it up. Squash it once and for all so you can experience joy again, do not let a situation you're able to control make you want to lose your life.
A student moves a box across the floor by exerting 56.7 N of force and doing 195 J of
work on the box. How far does the student move the box?
A.3.4 m
B. 11,056 m
C.138 m
D.0.29 m
Answers
Answer:
A. 3.4 m
Explanation:
Given the following data;
Force = 56.7N
Workdone = 195J
To find the distance
Workdone is given by the formula;
[tex] Workdone = force * distance[/tex]
Making "distance" the subject of formula, we have;
[tex] Distance = \frac {workdone}{force} [/tex]
Substituting into the equation, we have;
[tex] Distance = \frac {195}{56.7} [/tex]
Distance = 3.4 meters.
A pendulum swings back and forth. Is there energy in the system?
Answers
Answer:
yes
Explanation:
A pendulum should be able to contain enough energy to constantly be moving
How does the electric force between two charged particles change if the
distance between them is reduced by a factor of 2?
A. It is reduced by a factor of 2.
B. It is increased by a factor of 4.
C. It is increased by a factor of 2.
D. It is reduced by a factor of 4.
Answers
Answer:
increased by a factor of 4
Explanation:
A car travels 300km in six hour. What is the average speed
Answers
Answer:
50 km/hrExplanation:
The average speed of the car can be found by using the formula
[tex]s = \frac{d}{t} \\ [/tex]
d is the distance
t is the time taken
From the question we have
[tex]s = \frac{300}{6} = 50 \\ [/tex]
We have the final answer as
50 km/hrHope this helps you
Answer:
50mph
Explanation:
Just do[tex]\frac{300}{6}[/tex] (aka 300 divided by 6)
And you'll get 50 as your answer!
Hope this helps! Ty!
what is the acceleration of a 50kg object with 100 newtons force applied to it
Answers
1) A rock was thrown horizontally from a 500.0 m high cliff. It
strikes the ground 100.0 m from the base of the cliff. At
what speed was it thrown?
Answers
Answer:
twenty two miles per hour
You are one of the forensic anthropologist working on the Romanov Family investigation. You and your team are trying to determine the height of each of victim. Which bone will you analyze to create a profile of the victims?
Answers
Answer:
Femur
Explanation:
The bone to forensically analyze in order to create a height profile of the victims would the femur.
The approximate height of a human can best be estimated by measuring the length of the bone that runs from the hip to the knee, otherwise known as the femur.
For the males, the length of the femur in centimeters is multiplied by 2.32 followed by the addition of 65.53 in order to arrive at the approximate height of the individual. For the females, on the other hand, the length of the femur in centimeters is multiplied by 2.47 followed by the addition of 54.1.
friction always acts____ and in the ____ direction of the motion of an object
Answers
Answer:
Friction force always acts tangent to the surface at points of contact. Friction force acts opposite to the direction of motion. There are 2 types of friction: Static friction: If the two surfaces in contact do not move relative to each other, one has static friction.
Which element accumulates in the environment due to the use of
fertilizers?
A. oxygen
B. hydrogen
C. nitrogen
D. carbon
Answers
To Find :
Which element accumulates in the environment due to the use of fertilizers.
Solution :
Most of the fertilizers used in daily practice are nitrogen fertilizers .
When soil became waterlogged, soil organisms take the oxygen they need from nitrates, leaving the nitrogen in a gaseous form which escapes into the air.
Also, nitrogen is very stable and did not participate in most of the reactions.
So, nitrogen is accumulates in the environment .
Therefore, option C. is correct.
How much work is done in lifting a 300 Newton rock 10 meters off the ground?
Answers
Answer:
3000 JExplanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 300 × 10
We have the final answer as
3000 JHope this helps you
the weight of a person is 400N. he exerts 400N/m² pressure if he stands with both feet. Find the area of the floor covered by his both feet.
Answers
Answer:
1 m²Explanation:
The area of the floor covered by his both feet can be found by using the formula
[tex]a = \frac{f}{p} \\ [/tex]
f is the force
p is the pressure
From the question we have
[tex]a = \frac{400}{400} = 1 \\ [/tex]
We have the final answer as
1 m²Hope this helps you
please help me asdrtyuio
Answers
Answer:
9. The Sun's Gravity
10. The core is the densest layer
A rock is dropped into a canyon that is 0.3 km deep. Determine the time it takes the rock to hit the bottom of the canyon?
Answers
Answer:
rock of mass m is dropped to the ground from a height h. A second rock, with mass 2m, is dropped from the same height. When the second rock strikes the ground, what is its kinetic energy? (a) Twice that of the first rock, (b) four times that of the first rock, (c) same as that of the first rock, (d) half as much as that of the first rock, (e) impossible to determine.
If a rock is dropped into a canyon that is 0.3 km deep, then the time taken by the rock to hit the bottom of the canyon would be 7.82 seconds.
What are the three equations of motion?There are three equations of motion given by Newton
v = u + at
S = ut + 1/2 × a × t²
v² - u² = 2 × a × s
Keep in mind that these calculations only apply to uniform acceleration.
As given in the problem, if a rock is dropped into a canyon that is 0.3 km deep.
By using the second equation of motion given by Newton,
S = ut + 1/2at²
300 = 0 + 0.5 × 9.8 × t²
t² = 300 / 4.9
t = 7.82 seconds
Thus, the time taken by the rock to hit the bottom of the canyon would be 7.82 seconds.
To learn more about equations of motion here, refer to the link given below ;
brainly.com/question/5955789
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