The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.
Answers
Answer: Boat P
Explanation:
Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436
The minimum time taken to unwind the rubberband is by boat P.
The highest amount of force to unwind the rubberband is generated by boat P.
Force, Mass and AccelerationThe table shows all the mass, acceleration and time of each boat. To unwind the rubber band, the required force can be calculated as given below.
Force = Mass [tex]\times[/tex] Acceleration
For boat N, force is [tex]f_n = 0.125\times 1.6 = 0.2 \;\rm N[/tex]
For boat P, force is [tex]f_p = 0.116\times 2.1 = 0.24 \;\rm N[/tex]
For boat Q, force is [tex]f_q = 0.130\times 1.0 = 0.13 \;\rm N[/tex]
For boat R, force is [tex]f_r = 0.118\times 1.8 = 0.21 \;\rm N[/tex]
Hence we can conclude that the highest amount of force to unwind the rubberband is generated by boat P.
To know more about the force, follow the link given below.
https://brainly.com/question/26115859.
Related Questions
Wires provide the pathway to carry the electricity from components to components. * 1 point true false
Answers
Answer:
true
Explanation:
as long as it is the right conductive material
help me please Am I correct???
Answers
Answer:
They both experienced the same force as they weigh the same amount
Newtonian physics
Explanation:
Please answer I need help
Answers
Answer:
I have attached a picture of me explaining the answers in written format. Hope this helps, thank you !!
what is the acceleration of a football (.43kg) thrown with a force of 25N
Answers
Answer:
Explanation:
Newton's 2nd Law
F = ma
25 = (0.43)a
a = 58.14 m/s^2
PLS HELP WITH THIS FOR BRAINLIST IF ITS RIGHT
Answers
Answer:
the first one is Primary
the second one I think it's Mature but I don't know
What is the atomic mass of fluorine rounded to the nearest whole number?
Answers
Answer:
195
Explanation:
A 34.00 kg sample of mud has a specific heat of 2,512 J/kg °C.
If sunlight striking the mud supplies it with 1,069,546 J of energy, by how much does the mud's temperature increase?
A.
166°C
B.
12.52°C
C.
31.53°C
D.
79.02°C
Answers
Answer:
B ig lol
Explanation:
Describe the universe and its components
Answers
The universe is a vast expanse of space.
Some components are planets, stars and galaxies.
hope that helped.
Over many years a limestone surface is exposed to slightly acidic rain. Which result is likely to occur in the limestone
Answers
Answer:
calcium carbonate is transformed into calcium sulfate
Explanation:
Limestone stones are formed by calcium carbonate (Ca Co3), when acid rain falls with a little H2SO2, a chemical reaction of the type
Ca Co3 + H2SO4 → CO2 + H2O + CaSo4
Calcium sulfate is much weaker than alatium carbonate, which is why the stone tends to break under its weigh
A cars velocity changes from 0 m/s to 30 m/s in 10 seconds. Calculate acceleration.
Answers
Answer:
3 m/s^2
Explanation:
acceleration = vf-vi/t = (30 m/s-0 m/s)/10 s = 3 m/s^2
100 POINTS!!!!! YES,!!!!!!!! I SAID !!!!!!!100 POINTS!!!!!!!! FIRST TO ANSWER IT CORRECTLY AND ILL GIVE BRAINLY (LOOK IN THE TWO PICS TO FIND AND THE CORRECT ANSWERS)!!!!!!!!
Answers
"thanks for the points!!! and have a (terrible) day" - puppetasap4 :)
Answer:
"thanks for the points!!! and have a (terrible) day" - puppetasap4 :)
Explanation:
What happens to the molecules when the liquid changes phase?
Answers
Hopefully this helps if it did could I maybe get brainliest? It’s alright tho have a good day!!
Answer:
A phase change is occuring; the liquid water is changing to gaseous water, or steam. On a molecular level, the intermolecular forces between the water molecules are decreasing. The heat is providing enough energy for the water molecules to overcome these attractive forces.
Explanation:
please answer correctly
Answers
Answer:pretty sure it’s 3
Explanation:
I WILL GIVE BRAINLIEST!!!
Answers
Answer:
is that high school work??? cause I don't know it and I'm about to go to high school
Help me please....
Fill in the blanks:
1. Time taken by an object to complete one oscillation is called
Answers
Answer:
1) Time period
2) amplitude
3) Hertz or hz
4) Noise
5) frequency
6) infrasonic and ultrasonic
7) solid liquid and gas
8) A man
9) energy
10)1 vibration per minute
Answer: Time taken by an object to complete one oscillation is called time PERIOD.
Explanation:Hope this helps!! Brainlist?plz I need it
A 2.75 kg block is pulled across a flat, frictionless floor with a 5.11 N force directed 53.8° above horizontal. What is the total force acting on the block? (total force = N)
Answers
Answer:
F = 3.01 N
Explanation:
Given that,
Mass of a block, m = 2.75 kg
Force applied to the block, F = 5.11 N
It is directed 53.8° above horizontal.
We need to find the total force acting on the block. The force acting on it is given by :
[tex]F=F\cos\theta\\\\F=5.11\times \cos53.8\\F=3.01\ N[/tex]
So, 3.01 N of force is acting on the block.
3.01 works as the right answer
a body of mass 10kg moving with a velocity 4m/s strikes a vertical wall horizontally and returns back with same velocity. find the impulse exerted on the wall if the time of contact is 0.02s
Answers
Answer:
1.96Ns
Explanation:
Impulse = Ft = m(v-u)
Impulse = Force * time
Impulse = mgt
Impulse = 10 * 9.8 * 0.02
Impulse = 98*0.02
Impulse = 1.98Ns
Hence the impulse exerted is 1.96Ns
What are the dangers of a thunderstorm and how do you stay safe during the thunderstorm?
Answers
Answer:
you get struck by lightning
Explanation:
hide in ur house
what are two reasons communication is important in scientific research
Answers
Answer:
It allows them to write better and more comprehensible research papers. As well as being able to communicate the relevance and impact of their ideas and discoveries.
Explanation:
What is the mass of a tennis ball traveling with a velocity of 3 m/s and a momentum of
0.25 m/s? (1 point)
a. 0.08 kg
b. 0.5 kg
c. 9 kg
d. 18 kg
Answers
Answer:
Explanation:
P = mv
m = P/v
m = .25/3 = .08 Kg ... A
What is the potential difference when the current in a circuit is 5mA and resistance is 30 Ohms
Answers
[tex] \sf• \: The \: current \: in \: a \: circuit \: is \: 5 \: amps. \: and \: resistance \: is \: 30 \: Ohms.[/tex]
[tex] \\ [/tex]
[tex]\bf{ \underline{To \: Find :- }}[/tex][tex] \sf{• \: The \: Potential \: Difference. }[/tex]
[tex] \\ [/tex]
[tex] \huge\bf{ \underline{ Solution:- }}[/tex]
[tex] \sf According \: to \: the \: question, [/tex]
[tex] \sf• \: Current \: (I) = 5 \: Amps.[/tex]
[tex] \sf• \: Resistance \: (R) = 30 \: Ω[/tex]
[tex] \sf{Potential \: difference \: means \: Voltage \: ( V).}[/tex]
[tex] \sf{We \: know \: that, }[/tex]
[tex] \bf \red{ \bigstar{ \: V = IR }}[/tex]
[tex] \rightarrow \sf V =5 \times 30[/tex]
[tex] \rightarrow \sf V =150[/tex]
[tex] \\ [/tex]
[tex] \sf \purple{Therefore, \: the \: potential \: difference \: is \: 150 \: v \: .}[/tex]
what percentage of americans get no exercise in a day
Answers
Answer:
95%
Explanation:
Answer:
0%
Explanation:
im not sure kasi i dont understand the question.....
A shopkeeper uses a force of 50N to lift a box to a shelf 1.5m high. How much work is done?
Answers
Which has more momentum a 100 kg kid riding a bike 10m/s or a 5000 kg truck barley rolling at 0.1 m/s
Answers
Answer:
The momentum of bike is more.
Explanation:
Given that,
Mass of the kid, m = 100 kg
Speed of the bike, v = 10 m/s
The momentum of the kid is given by :
p = mv
So,
p = 100 kg × 10 m/s
p = 1000 kg-m/s
Mass of the truck, m = 5000 kg
Speed of the truck, v = 0.1 m/s
The momentum of the truck is given by :
p = 5000 kg × 0.1 m/s
= 500 kg-m/s
So, the momentum of the kid riding a bike is more than that of the truck.
A boy of mass, m weights 895 N. What is his mass, m?
a) 895 kg
b) 8.95 kg
c) 89.5 kg
d) None of the above
Answers
Answer:
One: either C or D. I can't give you a definite answer. See below.
Two: D
Explanation:
One
F = m * a
F = 895 N
a = 9.8
m = F/a
m = 895/9.8
m = 91.82
This turned out to be a very nasty little question. I don't know how you should answer it. The closest answer is C but is it close enough? You have to decide if you've had approximation questions before. If you have, C is the answer. If not then D is what you should choose.
Two
The answer is III and IV which makes it D
a screwdriver wheel has a radius of 5cm while the axle has a radius of .5cm. what is the mechanical advantage of the screwdriver?
Answers
Answer:10cm
Explanation:5 / .5=10
A car is travelling to the right with a speed of 40 m/s when the driver slams on the brakes. The car skids for 4 s with constant acceleration before it comes to a stop. What was the rate of the car's acceleration as it skidded to a stop?
Answers
Answer:
10m/s^2
Explanation:
Given data
velocity= 40m/s
time= 4 seconds
Acceleration a =????
We know that
a= velocity/time
substitute
a=40/4
a= 10m/s^2
Hence the acceleration will be 10m/s^2
The mass of the motorbike and rider is 286 kg. Calculate the acceleration of the motorbike at this moment in time.
Answers
Answer:
[tex]a=4.03\ m/s^2[/tex]
Explanation:
Given that,
The mass of the motorbike and rider is 286 kg.
We need to find the acceleration of the motorbike at this moment in time.
Net force acting on the bike is given by :
F = 2000 N - 845 N = 1155 N
Let a be the acceleration of the motorbike. So,
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{1155}{286}\\\\a=4.03\ m/s^2[/tex]
So, the acceleration of the motorbike is [tex]4.03\ m/s^2[/tex].
About 50 000 years ago, in an area located outside Flagstaff, Arizona, a giant
4.5 x 107-kg meteor fell and struck the earth, leaving a 180-m-deep hole now
known as Barringer crater. If the meteor was traveling at 20 000 m/s upon
impact, with what average force did the meteor hit the earth?
Answers
Answer:
F_A =5.625*10^1^6N
Explanation:
From the question we are told that
50,000 years ago,
A giant 4.5 107-kg meteor
180-m-deep hole
20,000 m/s
Generally for this problem the energy change is given as
\triangle E=\frac{1}{2} mv^2 +mgd△E=
2
1
mv
2
+mgd
Having the potential and kinetic energy in place
Mathematically solving for Average forceF_AF
A
\triangle E=F_a*d△E=F
a
∗d
F_A =\frac{1/2* 4.5*10^7(20,000)^2-kg+4.5*10^7*9.81*160}{160}F
A
=
160
1/2∗4.5∗10
7
(20,000)
2
−kg+4.5∗10
7
∗9.81∗160
Therefore Average force F_AF
A
is given by
F_A =5.625*10^1^6N
What is the difference between a pure
substance, solution, and mixture?
Answers
A pure substance cannot physically be separated, and is made out of one atom (or molecule). Unlike a mixture, however, which are made out of two or more atoms or molecules. A solution in itself is the example of a mixture. (The composition of a pure substance being fixed, and a mixture's being varying depending on which.) And a solution branching off from a mixture into being either homogeneous mixtures or heterogeneous mixtures.
srry it kinda turned into a paragraph lol, feel free to add or take away anything :)