In the lab, you looked at speed-time graphs to determine the acceleration of the cart for each of the three fan
speeds.
What was the acceleration of the cart with Low fan speed?
cm/s2
What was the acceleration of the cart with Medium fan speed? cm/s2
What was the acceleration of the cart with High fan speed?
cm/s2
Answers
Answer:
(I). The acceleration of the cart with low fan speed is 18 cm/s²
(II). The acceleration of the cart with medium fan speed is 23.3 cm/s²
(III). The acceleration of the cart with high fan speed is 32 cm/s²
Explanation:
Given that,
You looked at speed-time graphs to determine the acceleration of the cart for each of the three fan speeds in the lab.
According to graph,
A , B and shows the high, medium and low fan speeds respectively.
We know that,
The speed-time graph shows the acceleration.
Acceleration is equal to the rate of change of velocity.
(I). We need to calculate the acceleration of the cart with low fan speed
Using formula of acceleration
[tex]a_{l}=\dfrac{v_{f}-v_{i}}{t_{f}-t_{i}}[/tex]
Put the value from graph
[tex]a_{l}=\dfrac{125-0}{7}[/tex]
[tex]a_{l}=18\ cm/s^2[/tex]
(II). We need to calculate the acceleration of the cart with medium fan speed
Using formula of acceleration
[tex]a_{m}=\dfrac{v_{f}-v_{i}}{t_{f}-t_{i}}[/tex]
Put the value from graph
[tex]a_{m}=\dfrac{140-0}{6}[/tex]
[tex]a_{m}=23.3\ cm/s^2[/tex]
(III). We need to calculate the acceleration of the cart with high fan speed
Using formula of acceleration
[tex]a_{h}=\dfrac{v_{f}-v_{i}}{t_{f}-t_{i}}[/tex]
Put the value from graph
[tex]a_{h}=\dfrac{160-0}{5}[/tex]
[tex]a_{h}=32\ cm/s^2[/tex]
Hence, (I). The acceleration of the cart with low fan speed is 18 cm/s²
(II). The acceleration of the cart with medium fan speed is 23.3 cm/s²
(III). The acceleration of the cart with high fan speed is 32 cm/s²
Answer:
18.0, 24.0, 32.0
Explanation:
just did it
Related Questions
1) Describe how the atoms of a solid differ from the atoms of a liquid.
Answers
Answer:
liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
The atoms of solids and liquids are different from each other in many ways as discussed below.
We have a solid and a liquid.
We have to describe how the atoms of a solid differ from the atoms of a liquid.
What is Atom?An Atom smallest unit into which matter can be divided without the release of electrically charged particles.
According to the question, the following differences exists between the atoms of solids and liquids -
In solids the atoms are tightly packed while in liquid they are loosely packed.In solids the density of atoms within a specific volume is very high while in liquid it can be either high or low.In solids, atoms are not free to move and they can only oscillate about their mean position while in liquid the atoms are free to move.Hence, it can be seen that the atoms of solids and liquids are quite different from each other.
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A monorail starts from rest and accelerates at a rate of 2.2m/s2 for 10s.Then it runs at a constant speed for 74s and then slows down at a rate of 1.5m/s2
Answers
Answer:
d = 4217 m
Explanation:
Case 1.
Initial velocity, u = 0
Acceleration, a = 2.2 m/s²
Let d₁ is the distance in case 1. Using second equation of motion as follows :
[tex]d_1=ut+\dfrac{1}{2}a_1t_1^2\\\\\text{Here, u =0}\\\\d_1=\dfrac{1}{2}\times 2.2\times 10^2\\\\d_1=110\ m[/tex]
Let d₂ in the distance in case 2. Using second equation of motion as follows :
[tex]d_2=ut+\dfrac{1}{2}a_2t_2^2\\\\\text{Here, u =0}\\\\d_2=\dfrac{1}{2}\times 1.5\times 74^2\\\\d_2=4107\ m[/tex]
Total distance,
D = d₁ + d₂
D = 110 + 4107
D = 4217 m
Hence, the total distance covered is 4217 m.
hey can anyone help me out in dis pls
Answers
Answer:
All of the above
Explanation:
Solids have a fixed shape and volume.
Even though the molecules in a solid are vibrating, they can't travel from one part of the solid to the other.
I hope this helps! :)
What indicates that an atom
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Explanation:
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B. Compound
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D. Solid
E. Liquid
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Answer:
Solid , liquid and gas
Explanation:
However, mixture and compound are other things.
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Answer:
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Explanation:
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Explanation: Gradpoint
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Answer:
They are written or edited by anyone
Explanation:
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How long would it take a runner to travel 4 miles if they ran at a pace of 2.3 miles/hour?
(10 Points)
O 9.2 hours
O 0.575 hours
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O 1.739 hours
Answers
Answer:
9.2
Explanation:
just multiply 4 miles times 2.3 then you get your answer
Robin jogs with an average speed of 5.5 m/s for 3.3s.
What was her distance travelled in meters?
Answers
Answer:
18.15m
Explanation:
Speed * Time = Distance
5.5 * 3.3 = 18.15m
The distance traveled by Robin is equal to 18.15 m with an average speed of 5.5 m/s for 3.3s.
What is the average speed?The average speed can be explained as the total distance covered by the object in a definite time. The average speed can be considered a scalar quantity as it exhibits magnitude and no direction.
The average speed of a physical system can be determined from the ratio of the total distance traveled by the system to the time taken to cover that distance.
The average speed equation of a physical system can be written as follows:
Average speed = Total distance/total time taken
Given, the average speed of the Roin, = 5.5 m/s
The time is taken by Robin for jogging = 3.3 s
The average speed of the Robin can be determined as:
Average spped = Distance/ time
5.5 = Distance/3.3
Distance traveled by Robin = 5.5 × 3.3 = 18.15 m
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"Suppose an elephant (Tiny) was
pacing back and forth at the zoo.
She first goes 8 meters to the
left, 6 meters to the right, and 2
meters to the left.
What is the total distance Tiny
has traveled?
I
What is Tiny's displacement?
Answers
Distance traveled by Tiny : 8m + 6m + 2m = 16 meters
Displacement of Tiny : 8m (left) - 6m (right) + 2m (left) = 4 meters to the left
Explanation :
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Displacement : Shortest distance covered from the starting point = 8 meters (left) + 2 meters (left) - 6 meters
Sry I could not explain more hope you found it useful
Which careers typically require post-secondary education other than vocational school? Check all that apply. Boiler Operation Construction Management Architecture Repair Work Civil Drafting Carpentering
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Answer: Construction management, Architecture, Civil Drafting.
Explanation: hope this helps :)
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WHO IS GOOD AT PHYSICAL SCIENCE PLS COME HERE AND HELP ME OUT!!!!
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More work was done. Which statement best describes the cause?
a
There was more force applied; therefore, there was less movement.
b
There was less force applied; therefore, there was more movement.
Oc
There was less force applied; therefore, there was less movement.
Od
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Answers
Answer: I think the answer would be D
Explanation:
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Plz help me. I need urgent Why a magnetic compass is used to determine direction? Why a nail gets magnetized when kept close to magnet? Why two pins get attracted by bar magnet maintain distance between ends?
Answers
Answer:
Compasses are mainly used in navigation to find direction on the earth. This works because the Earth itself has a magnetic field which is similar to that of a bar magnet. The compass needle aligns with the Earth's magnetic field direction and points north-south. Also, In a magnet all the domains are oriented in the same direction. In the case of a nail, the domains can be aligned in the same direction causing the nail to become magnetic. That is because if you hang a bar magnet from a thread, the north pole will point to magnetic north. When you bring one north pole close to another north pole they repel each other. You can feel the two magnets pushing each other apart.
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Answers
6,000 in scientific notation is 6 x 10^3.
6 x 10^3 = 6,000
Hope this helps ! <3
How can the force of friction between two surfaces be reduced?
a. By changing rolling friction to sliding friction.
b. By making smooth surfaces rougher.
c. By separating surfaces with a lubricant.
d By increasing the force between the surfaces.
Answers
which expression correctly describes energy using SI units
Answers
Answer:
Joule
Explanation:
energy, work, quantity of heat
m2·kg·s-2
What is the velocity of the object moving from 3 - 7 seconds?
O m/s
-6 m/s
6 m/s
Answers
Pictured is an animal cell and a plant cell. Which organelle labeled in the plant cell produces the energy for the cell?
Answers
Answer:
Mitochondria
Mitochondria. Mitochondria are double membrane-bound cell organelles responsible for the supply and storage of energy for the cell.
Explanation:
The organelle labeled as "mitochondria" in the plant cell produces the energy for the cell through the process of cellular respiration.
What are mitochondria?Mitochondria are organelles found in most eukaryotic cells. They are often referred to as the "powerhouses" of the cell because their main function is to produce energy in the form of ATP (adenosine triphosphate) through a process called cellular respiration.
Mitochondria have an outer membrane and an inner membrane with folds called cristae. The space between the two membranes is called the intermembrane space, while the space inside the inner membrane is called the mitochondrial matrix. The mitochondrial matrix contains enzymes and other molecules needed for the metabolic reactions of cellular respiration.
Cellular respiration is a process that converts glucose and oxygen into ATP, which is the primary energy source for cells. Mitochondria play a key role in this process by breaking down glucose through a series of chemical reactions that ultimately produce ATP. The energy stored in ATP molecules can then be used by the cell for various cellular processes, such as muscle contraction, protein synthesis, and the maintenance of the cell's membrane potential.
In addition to their role in ATP production, mitochondria are also involved in other important cellular functions, such as calcium signaling, apoptosis (programmed cell death), and the synthesis of certain lipids and heme groups. Mitochondrial dysfunction has been implicated in a number of diseases, including Parkinson's disease, Alzheimer's disease, and diabetes.
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Starting from rest, a truck accelerated at a rate of 2 m/s to the right for 25 seconds. How far will the truck travel during this time period
Answers
Answer:
S= ?
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S=V*t
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Answers
Answer:no because distance is weaker than gravity
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The electric motor of a model train accelerates the train from rest to 0.620 m/s in 21ms. The total mass of the train is 825 g. find the average power delivered to the train during its acceleration.
Answers
Explanation:
Average power = change in energy / change in time
P = ΔE / Δt
P = (½ mv²) / t
P = (½ (0.825 kg) (0.620 m/s)²) / (0.021 s)
P = 7.55 Watts
After you let go of a bowling ball, is there a force pushing it so that it keeps moving
forward? Explain.
Answers
Explanation:
No, the ball keeps moving forward due its momentum.
A net force causes an object to accelerate, which means it speeds up, slows down, or changes direction. A bowling ball does not speed up after you let go, so there is no forward force.
A positively charged atom has
Answers
Answer:
Lost electrons
Explanation:
For a atom to become positively charged it needs to have more protons than electrons
Why us an element considered a pure substance
Answers
Explanation:
Hey there!!
An elements is called a pure substance because it is composed of only one kina of atoms in a fix proportion.
Hope it helps...
Answer:
Elements are pure substances because elements are always made up of same kind of particles.
Example:- pure Iron rod (iron is an element)is made up of many similar Iron atoms.
write any five uses of uv rays
Answers
-disinfection
-indoor gardening
-air cleaning
-curing inks and resins
The modern periodic table of elements contains
_______ main groups.
Answers
Answer:
The modern periodic table of elements contains
Eighteen main groups.
The gravitational acceleration on Earth is 9.8 m/s2. What is the weight of a car on Earth (to the nearest whole number) if it has a mass of 1360 kg? 14 N 139 N 1333 N 13,328 N
Answers
Weight = (mass) x (gravitational acceleration where the mass is)
Weight = (1360 kg) x (9.8 m/s²)
Weight = 13,328 kg-m/s²
That's 13,328 Newtons
Given:-
Mass (m) of the car = 1360 kgAcceleration due to gravity (g) = 9.8 m/s²To Find: Weight (W).
We know,
W = mg
where,
W = Weight,m = Mass &g = Acceleration due to gravity.Thus,
W = (1360 kg)(9.8 m/s²)
→ W = 13,328 N (D)
A drunk college student decides to try to do a perfect swan dive from his apartment window into the pool below. The edge of the pool is 5 meters from the base of the building and his window is on the 3rd floor, which is 8 meters from the ground. If he jumps out the window horizontally at a speed of 4 m/s, does he make it into the water or..
Answers
Answer:
He barely makes it but hit his leg on the pool edge.
Explanation:
Using kinematic formula: Δx=[tex]v_{0}t+(1/2)at^2[/tex]
We can plug in delta x, v zero, and acceleration.
delta x = 8 meters, v0 = 0. a = 9.8
8=(1/2)9.8*t^2
Around 1.278 seconds of airtime.
4 * 1.278 = 5.112 meters horizontally assuming no air resistance
That was close!