The energy transferred to the kinetic energy store of the child A's ball bearing is 0.72 J.
Energy transferred to the kinetic energy
The energy transferred to the kinetic energy store of the child A's ball bearing is determined from the principle of conservation of energy as shown below;
K.E = Ux = ¹/₂kx²
K.E = ¹/₂ x 144 x 0.1²
K.E = 0.72 J
Thus, the energy transferred to the kinetic energy store of the child A's ball bearing is 0.72 J.
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A person holds a bucket of weight 60N and climbs vertically the distance of 5m. What is the work done by gravity?
Answer:
300 J (Joules)
A Joule will measure "the amount of work done when a force of one newton is exerted through a distance of one meter"
Hope this Helps
Which of the following is a true statement about learning?
A. Learning does not result in lasting change.
B. Learning happens through experience or practice.
C. Learning does not enable a person to continue to do something.
D. Learning involves activities that happen automatically.
Answer:
B. learning happens through experience and practice.
What information is given by the formula H2O2?
Answer:
it is hydrogen peroxide
Question 3
Kennedy is planning an investigation into the transformation between Kinetic and potential energy using objects she found around her house
The object that is best used to study the transformation between kinetic and potential energy is the clock because it has a pendulum.
A pendulum can be used to study the conversion of kinetic energy to potential energy. As the pendulum swings from side to side energy is converted from potential energy to kinetic energy and back to potential energy.
The potential energy is minimum and the kinetic energy is maximum at the middle of the pendulum. At both ends of the pendulum, the potential energy of the system is maximum.
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why are hydraulic brakes less effective if there is air in the liquid
Answer:
air is compress able
since air can be compressed, then the hydraulics will not work as well. It won't be able to push the object or brake the wheels. Since water cannot be compressed, it is able to push something, that's how hydraulics work.
Explanation:
it reduces pressure and essentially makes the process less effective.
A cart of weight 20 N is accelerated across a level surface at 0.15 m/s?. What net force acts on
the wagon?
The net force that acts on the cart of wagon is calculated as 3N
HOW TO CALCULATE NET FORCE:
The net force of a body can be calculated by multiplying the mass of the body by its acceleration. That is;Force (N) = weight (N) × acceleration (m/s²)According to this question, a weight of 20N accelerated across a level surface at 0.15 m/s². The net force can be calculated as follows:F = 20 × 0.15
F = 3N
Therefore, the net force that acts on the cart of wagon is calculated as 3N.Learn more at: https://brainly.com/question/18109210?referrer=searchResults
Hey guys <3
I need some help with this performance task,, physics isn’t my strongest subject so help is much appreciated :)
(3/9 parts)
Answer:
3. B. Decreases
4. A. Increases
5. A. Repel
Disolveram-se 6,0g de NaOH em 114,0g de agua , exprime a composicao da solucao em percentagem em Massa de soluto por Massa de solucao
Answer:
i donot know
Explanation:
i done it for the first time
Given a table of values for the exponential function f(x) and a description of the
transformation for the function g(x)
, fill out the table of values based on the original
points for glx), the transformed function.
- 1
0
2
16
3
Reflect over
0
2
4
0-4, -1, -12
1
16
.
64
01, 1, 4, 16, 64
,
4, 1, , 162
0-1, -1, –4, – 16, – 64
Answer:its D
Explanation:
i did the test and got it right
The transformation function of the given exponential function is -1/4, -1, -4, -16, -64. Hence option D is correct.
What is an exponential function?An exponential function is a mathematical relation to find exponential growth or decay for the given data. It represents the constant change in independent variables and gives the same proportional change.
The exponential function is expressed as f(x) = exp (x) or eˣ where x is variable and e is constant which is called the base of the equation.
From the given,
the exponential function f(x) = 1/4, 1,4,16,64
The transformation function G(x) is the inverse of the exponential function and is equal to -1/4,-1, -4,-16,-64.
Hence, the ideal solution is option D.
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Help if u understand for a b c
Golf cart is moving 8 metre in 1 second
so, in 10 seconds it moves 8 × 10 = 80 m
a) velocity = 80/10 = 8 m/s
b) acceleration = v - u / t
= 8 - 0 / 10
= 0.8 m/s²
c) the displacement of the graph is increasing
I hope this answer is correct and helpful to you
How do I calculate the moment of force? Please answer as soon as possible
Moment of force = F x d . Here d is the distance from the fixed axis, Moment of force is expressed in newton meter (Nm). Moment of force formula can be applied to calculate the moment of force for balanced as well as unbalanced forces.
What does a higher value of k and a lower value of k tell about the strength of the spring? (Hint: In which case is it soft or stiff?)
Answer:
' In layman's terms, the k variable in Hooke's law (F = -kx) indicates stiffness and strength. The higher the value of k, the more force is needed to stretch an object to a given length. This value is dependent on the object's material alongside its shape and Proportons
Explanation:
what effects does ionizing radiation have on the atmosphere
identify the types of elements in the schematic diagram give the number of each types
Where's the diagaram?
what is heliocentric model?
Answer:
A model of the solar system with the sun in the middle
Explanation:
A basketball is tossed upwards with a speed of 5.0 m/s. We can ignore air resistance. What is the maximum height reached by the basketball from its release point? (Answer using a coordinate system where upward is positive.)
Answer:
the maximum height is 1.276 meters
1) how can you show that atmospheric exerts pressure?
2) how do you measure the volume of an irregular solid ? explain an experiment with diagram.
Answer:
1. While boiling replace the cap and allow it to cool. Vapours inside condense and form water creating vacuum above them. Observation - The can crumbles due to air pressure from outside. This proves that air exerts pressure.
2. Measure the volume of the liquid displaced when the object is submerged. Measure the initial volume of water in graduated cylinder. Submerge the irregular object. Measure the final volume of the water.
— The difference between the initial volume and the final volume is the volume of the object.
hope can help ^_^
Help me pleaseee
in what way does the tools, equipment and paraphernalia help us in our lives
Help me pleaseee :( today is our last day pleaseee (Please dont answer if you dont know).
Answer:
They can help us in our daily lives
Explanation:
I knew that they can also be a help to others specially in other ways such as to help us to facilitate our work in home
A dog walks 100m at a bearing of 175 degrees. a) How far did it walk East?
1 kilometer
Explanation:
hope it helps
Answer:
275m
Explanation:
hope it helps
pls give me brainliest
Your car can brake with a deceleration of 6 m/s2. The car is initially going at 40 m/s.
a) How long will it take the car to come to a full stop?
b) If the car is 5 meters long, about how many car lengths should be kept between you and the car in front of you (assume the car in front of you comes to a stop immediately).
We have that for the Question "" it can be said that how long will it take the car to come to a full stop and the car lengths before a stop is
t=6.67L=27cars
From the question we are told
Your car can brake with a deceleration of 6 m/s2. The car is initially going at 40 m/s.
a) How long will it take the car to come to a full stop?
b) If the car is 5 meters long, about how many car lengths should be kept between you and the car in front of you (assume the car in front of you comes to a stop immediately).
Generally the equation for the Velocity is mathematically given as
[tex]v=u+at\\\\Therefore\\\\40=0+6t\\\\t=6.667s\\\\[/tex]
b)
s=ut+1/2at^2
Therefore
[tex]S=0+1/2(6)(6.7)^2\\\\S=134.67m[/tex]
Therefore
The car lengths before a stop is
L=134.67m/5
L=27cars
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A piece of wood has a mass of 8g and a volume of 10cm³ work out the density of the wood
Answer:
0.8 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass = 8 g
volume = 10 cm³
We have
[tex]density = \frac{8}{10} = \frac{4}{5} = 0.8 \\ [/tex]
We have the final answer as
0.8 g/cm³Hope this helps you
Using your knowledge of momentum explain why cars are designed to have crumple zones?
Answer: I think cars are designed to have crumble zone because lets say you're going 60-70 mph and you hit a brick wall that cant move, it would be a very hard jolt causing the beings inside to get thrown forward, but if it has a crumble zone it would slow the the jolt from is slowing down in the hit.
(pls help me) Which event is an example of melting? A. Wax drips down the side of a lit candle. O B. Perspiration dries on a person's skin. O C. Rain turns to ice pellets. O D. A mirror fogs up when someone takes a hot shower.
Answer:
A. is correct thanks for sharing your question
What is the voltage between two short-circuited points? PLZ HELP ASAP
Answer
It states that V/I = R where V is potential difference R is resistance and I is the current flowing across the terminals.Now when short circuit the resistance ...
Explanation:
how many atoms are in the moon??
The number of atoms on the moon is 1.33× 10¹⁵ atom.
What is an atom?The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus proton and the neutron is exists. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
The response is 1.33× 10¹⁵ atom. According to the Jefferson Lab of the US Department of Energy.
This answer is derived from an assessment of the number of atoms present in each of the Earth's constituent elements, such as silicon, iron, magnesium, sulfur, and silicon.
Hence the number of atoms on the moon is 1.33× 10¹⁵ atom.
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Show the work please and thank you!
Answer:
Explanation:
60 times 5=300+24=324
207/324= aveage i dont have a calculator
use the average and mutiple by 88 minutes
PLEASE HELP ME!! WILL MARK BRAINLIEST!!!
How many moles of glucose, C6_H12_O6, are in 300 g of glucose? Show your work.
A ship left the dock and travelled north at 50km/hr for 2 hours then it turned west at 60km/hr for 3 hours. What is the net resultant displacement vector R
Answer:
resultant displacement = 20√1o6 km = 205912.6 m in the direction of western north.
Explanation:
assume that the ship started moving from A to B (north at 50km/hr for 2 hours) so the covered distance will be: 50*2 = 100 km
then it moves from B to C so the covered distance will be: 3*60 = 180 km
using Pythagoras, we get the resultant displacement = 20√1o6 km = 205912.6 m in the direction of western north.
abebe wants to lift a 10N object from the ground. what is the minimum force he needs to exert
Explanation:
object has a mass, but force, newton is Unit of force.
If the value of g is taken as 10, the mass of the object here is only 1 kg. You will need a force of 10N to lift 1kg mass against the gravity ...
Which of the following forces exists between objects even in the absence of direct physical contact
A. Contact force
B. Field force
C. Fundamental
Answer:
B. Field Force
Explanation:
Answer:
The Answer is (B) Your welcome!
