a ball is traveling at a constant speed of 2 m/s in a circle with a radius of 0.4 m. what is the magnitude of the centripetal acceleration of the ball?
Answers
The magnitude of the centripetal acceleration of the ball is 10 m/s².
When an object is traveling in a circle at a constant speed, it experiences a centripetal acceleration toward the center of the circle. The formula for calculating centripetal acceleration is:
a_c = v² / r
where a_c is the centripetal acceleration, v is the constant speed of the object, and r is the radius of the circle.
In this case, the ball is traveling at a constant speed of 2 m/s in a circle with a radius of 0.4 m. Plugging these values into the formula, we get:
a_c = (2 m/s)² / 0.4 m
a_c = 4 m²/s² / 0.4 m
a_c = 10 m/s²
An object traveling in a circular path will experience centripetal acceleration. It is always perpendicular to the object's motion and pointed in the direction of the circle's center. The formula given above can be used to determine the centripetal acceleration's magnitude. The ball's centripetal acceleration in this scenario, with a constant speed of 2 m/s and a radius of 0.4 m, is found to be 10 m/s2.
To know more about centripetal acceleration, click here;
https://brainly.com/question/17123770
#SPJ11
Related Questions
Analyze: How do the positions of the hot and cold water affect th
e speed of convection?
Answers
Convection currents are circular patterns that move air and liquids as a result of unequal heating and cooling. Hot air rises because it is less dense and then sinks as it cools. Hot water rises and then the cold water sinks.
Hope this helps!
Please give Brainliest!
.
O
Allison drove 150 miles for 2.5 hours.
Benjamin drove for 2.73 hours and traveled 175 miles.
• Lily drove 160 miles for 2.58 hours.
• George drove for 2.46 hours and traveled 155 miles.
Which person drove at the fastest constant speed?
The formula for calculating speed: Speed = Distance/Time
Answers
Answer:
Benjamin was fastest
Explanation:
Allison- 150/2.5= 60mph
Benjamin- 175/2.73= 64.1
Lily- 160/2.58= 62.01
George- 155/2.46= 63.008
Projectile Motion
a. Identify the variables (givens and unknown.) Remember to include the units.
B. Which kinematic formula should you use to solve?
C. Solve the problems.
An egg is thrown horizontally off the roof.
Which is 70 meters high, with an
initial velocity of 5.5 m/s. How long does it take to hit the ground? How far
does it go in the x direction?
3 variable
Variable Chart Given and Unknown?
PLEASE HELP ME FAST ITS 25 POINTS
Answers
Answer:thx
Explanation:
You drop a stone down a well that is 100.0 m deep. How long will it take for the stone to reach the bottom, ignoring air resistance?
Remember, rest is the initial velocity and it equals 0.0 m/s
01.05
O 4.5 s
o 20 s
O 10 s
Answers
Answer:
4.5s
Explanation:
what are the uses of convex lens
Answers
Answer:A convex lens is employed in microscopes and magnifying glasses to converge all incoming light rays to a particular point. ...
The convex lens is used in cameras. ...
A convex lens is used for the correction of hyperopia. ...
The converging lens is used in the projector as well.
A car travels with a starting velocity of 20 m/s and an ending velocity of 40 m/s in 5 seconds what the acceleration
-
A. 4 m/s^2
B. 5 m/s^2
C. 6 m/s^2
D. 7 m/s^2
Answers
Answer: \(4 m/s^{2}\)
Explanation:
First you take your end velocity and subtract the initial velocity (\(40-20=20\))
Then you divide the difference by the time (\(20/5=4\))
Giving you the result of \(4 m/s^{2}\)
This all uses the equation \(V_{f}-V_{i}=ta\)
A steel ball is released just below the surface of thick oil in a cylinder.
During the first few centimetres of travel, what is the acceleration of the ball?
A constant and equal to 10 m / s2
B constant but less than 10 m / s2
C decreasing
D increasing
Answers
Answer:
Increasing
Explanation:
I Hope it Helps
hello please help me out its due today!!
I need to make a word problem using the Ohm's Law, and solve it with shown work, Thank you!
Answers
Answer:
no se entiende nada lo siento
Matthew drops a cherry pit out the car window 1.0m above the ground while traveling down the road at 18m/s.
a) How far, horizontally, from the initial dropping point, will the pit hit the ground
b) Draw a picture of the situation.
c) If the car continues to travel at the same speed, where will the car be in
relation to the pit when it lands?
Answers
Answer:
ADD ALL THEM AND ANSER WILL BE THERE 19.O
Explanatio
how was mugabe able to build power and what type of power base
is he
Answers
Mugabe gained power by using political strategies, forming alliances, and exploiting his status as a liberation hero within ZANU-PF.
Robert Mugabe, the former president of Zimbabwe, was able to build power through a combination of political strategies and alliances. One key factor was his involvement in the liberation struggle against white minority rule in Rhodesia (now Zimbabwe).
Mugabe emerged as a prominent figure within the Zimbabwe African National Union (ZANU) party, which later merged with the Zimbabwe African People's Union (ZAPU) to form the Zimbabwe African National Union - Patriotic Front (ZANU-PF). Mugabe's role as a liberation hero and his ability to mobilize support among the majority black population of Zimbabwe gave him a strong power base.
Within ZANU-PF, Mugabe strategically positioned himself and gained influence by forming alliances and outmaneuvering rivals. He rose to become the party's leader and played a key role in negotiating the Lancaster House Agreement in 1979, which paved the way for Zimbabwe's independence in 1980. Mugabe became the country's first prime minister and later transformed the position into an executive presidency, consolidating his authority.
Mugabe maintained power through various means, including controlling key institutions such as the military, intelligence agencies, and the ruling party. He also utilized patronage networks, distributing resources and positions to loyal supporters within the party and government. Mugabe's policies, such as the controversial land reform program, further solidified his power base by appealing to nationalist sentiments and redistributing land from white farmers to black Zimbabweans.
However, Mugabe's consolidation of power was also marked by authoritarianism, human rights abuses, and a declining economy. His grip on power faced challenges over the years, including opposition movements, internal party factions, and economic crises. Ultimately, his rule came to an end in 2017 when he was ousted from power following a military intervention.
To learn more about power click here:
brainly.com/question/31220381
#SPJ11
when the frictionless system shown above is accelerated by an applied force of magnitude f, the tension in the string between the blocks is:
Answers
The tension in the string between the blocks depends on the applied force F and the ratio of the masses mB/mA.
When the frictionless system is accelerated by an applied force of magnitude F, the tension in the string between the blocks can be determined using Newton's Second Law of Motion. The equation for this law is F = m*a, where F is the force, m is the mass, and a is the acceleration.
For the block connected to the applied force, let's call it block A, the force equation would be F = mA*aA. For the other block, block B, the force equation would be T = mB*aB, where T is the tension in the string. Since both blocks are connected by the string and moving together, their acceleration (aA and aB) is the same.
We can now express the tension T in terms of the applied force F, masses mA and mB, and the acceleration a:
T = mB*(F/mA).
To know more about acceleration, visit:
https://brainly.com/question/2303856
#SPJ11
how are q and w related during the isobaric part of the overall path from state d to state b?
Answers
The way that Q and W are related during the isobaric part of the overall path is that W provides energy output, while Q provides energy input; Q is larger. Option A.
What is the isobaric part?A thermodynamic process called an isobaric process keeps the pressure constant. This is typically accomplished by allowing the volume to alter in size in order to balance off any pressure changes brought on by heat transfer.
Vb > Vd
W tends towards the positive. This is the energy output of the system. The pressure is constant so Q is energy input. Hence the first option is the correct one
Read more on the isobaric process here:https://brainly.com/question/28106078
#SPJ1
Question
how are q and w related during the isobaric part of the overall path from state d to state b?
1. W provides energy output, while Q provides energy input; Q is larger
2. Both W and Q provide energy input
When a pot of water sits on a hot stove the metal is He did and then transferred into heat to the world of student claims that conduction is the only type feet transfer occurring which statement explains why the students idea is incorrect
Answers
Answer:
Hello your question is poorly written hence I will just give the difference between conduction and convection
answer :
Conduction occurs when there is direct contact between solids and source of heat. while convection occurs when there is transfer of thermal energy due to movement of liquid or gas
Explanation:
when a pot of water is placed on a hot stove the pot is heated through conduction because the metal pot is in direct conduct with the heat from the stove ( which is the primary source of heat in this scenerio ).
while the heat transfer from the hot pot to the water is executed through convection this is because heat transfer via convection requires the movement of liquid or gas. as the warmer liquid moves over to the top the cooler liquid goes below inside the pot that way the whole liquid becomes warm .
Part 1: Explain how a pile of ashes has the same mass as the original log before it was burned (assuming this happens in a completely closed system). Part 2: What is the law that defines this called?
Answers
Answer:
Part 1: Matter can neither be created nor destroyed thus the product is always equal to the mass of reactants
Part 2: Conversation of Mass
Explanation:
:D
1. What occurs when there is a change in position of an object with respect to a reference starting point?
A. Directions
B. Motion
C. Position
D. Displacement
Answers
Answer:
Motion
Explanation: Enjoy! :)
.....................
In the diagram, q1 = +4.88*10^-8 C.
What is the potential difference when
you go from point A to point B?
Include the correct sign, + or - .
B
0.538 m
1.36 m
91 |
(Hint: Does V go up or down when you go
from B to A?) (Unit = V)
Answers
Answer:
ΔV = 1139.3 V = 1.139 KV (+ve sign shows V goes up)
Explanation:
The potential difference while moving from point A to Point B is given as follows:
\(\Delta V = V_B-V_A\)
where,
ΔV = potential difference from A to B = ?
\(V_A\) = Potential at point A = \(\frac{kq}{r_A}\)
\(V_B\) = Potential at point B = \(\frac{kq}{r_B}\)
Therefore,
\(\Delta V = \frac{kq}{r_B}-\frac{kq}{r_A}\\\\\Delta V = kq(\frac{1}{r_B}-\frac{1}{r_A})\)
where,
k = Colomb's Constant = 9 x 10⁹ N.m²/C²
q = magnitude of charge = 4.88 x 10⁻⁸ C
\(r_A\) = distance of point A from charge = 1.36 m
\(r_B\) = distance of point B from charge = 0.538 m
Therefore,
\(\Delta V = (9\ x\ 10^9\ N.m^2/C^2)(4.88\ x\ 10^{-8}\ C)(\frac{1}{0.538\ m}-\frac{1}{1.36\ m})\\\\\Delta V = (439.2 N.m^2/C)(2.59\ /m)\)
ΔV = 1139.3 V = 1.139 KV (+ve sign shows V goes up)
The answer is 492.87.
Correct on Acellus
when a soaring falcon turns during its flight, what is the source of the centripetal force acting on it?
Answers
Air resistance serves as the eagle's source of centripetal force as it turns.
What does the term centripetal forces mean?A centripetal force is a force that pulls anything towards the centre of a curved surface. Put yourself in the position of spinning a yo-yo. Your arm's effort propels the yo-yo into motion, and the string's tension causes it to continue spinning while you twirl it.
A force that is brought on by air called air resistance. An object travelling through the air experiences the force in the opposite direction. A sports vehicle with a streamlined form will face less air resistance than a lorry with a flat front, enabling the latter to travel faster.
To know more about air resistance visit:
https://brainly.com/question/4428352
#SPJ4
Now assume that the baggage handler pushes a third box (Figure 2) of mass m/2 so that it accelerates at a rate of 2a. How does the magnitude of the force F3 that the handler applies to this box compare to the magnitude of the force F1 applied to the first box?
0≤F3<1/2F1
1/2F1≤F3
F3=F1
F1
F3>2F1
Answers
The comparison of the second force and third force with the first force will be F₂ = 2F₁ and F₃ = F₁, respectively.
What is Newton's second law?Newton's second law supplies an exact reason for the mutations that a force can make to a body's indication.
The formula is given as,
F = ma
Where 'F' is the power, 'm' is the mass, and 'a' is the acceleration.
The first force is given as,
F₁ = ma
If the acceleration is double, then the second force is given as,
F₂ = m × (2a)
F₂ = 2ma
F₂ = 2F₁
If the acceleration is double but half the mass, then the third force is given as,
F₃ = (m / 2) × (2a)
F₃ = ma
F₃ = F₁
The comparison of the second force and third force with the first force will be F₂ = 2F₁ and F₃ = F₁, respectively.
More about Newton's second law link is given below.
https://brainly.com/question/13447525
#SPJ1
The complete question is given below.
A baseball player dives head-first into
second base and slows down while sliding on the infield dirt.
Of the forces listed, identify which act upon the player.
1.Normal
2.Gravity
3.Applied
4.Friction
5.Tension
6. Air Resistance
Answers
Answer:
Explanation:
Discussion
The ones that are certain are
Normal GravityFrictionIf you have a normal, and the player slides into 2nd, and stops (which he must before he is tagged), then there must be friction involved. There must be gravity, or he would keep going up.
I don't think there is tension. There might be some Air Resistance, but that force is very tiny. Don't be surprised if you answer includes Air Resistance, but I won't try it to begin with.
Just before Sarah started her laboratory work, she made a hot cup of tea. She left the tea on her desk while she worked because she never takes food or drink into the lab area. When she finished collecting data, Sarah's cup of tea was cool. What energy transfer caused her tea to cool?
Answers
The energy transfer between cup tea and surrounding caused her tea to cool according to newtons law of cooling.
The pace at which a body is exposed to radiation alters its temperature is roughly proportional to the temperature difference between the item and its surroundings, and the provided difference is small. The cooling law of Newton is this.
Heat is transported more quickly and a person's body temperature changes more quickly the higher the temperature difference between a system and its surroundings. When the temperature difference between the body and its surroundings is small, the rate of cooling of a body is directly related to the temperature difference and the surface area exposed.
To know more about newtons law of cooling visit : https://brainly.com/question/27104605
#SPJ9
Name two appliance that use electromagnet.
Answers
Answer:
Electromagnets are very widely used in electric and electromechanical devices, including:
Motors and generators.
Transformers.
Relays.
Electric bells and buzzers.
Loudspeakers and headphones.
Actuators such as valves.
Magnetic recording and data storage equipment: tape recorders, VCRs, hard disks.
Answer:
They are:-
• Electric bells and buzzers
• Motors and generators
Explanation:
Hope this helps
Brainliest pls ❤️
2. A solid sphere and a solid cylinder, both uniform and of the same mass and radius, roll without slipping at the same forward speed. It is correct to say that the total kinetic energy of the solid sphere is A) more than the total kinetic energy of the cylinder. B) less than the total kinetic energy of the cylinder. C) equal to the total kinetic energy of the cylinder.
Answers
Please mark brainliest
A student leaves their history classroom and walks 20 meters north to a drinking fountain. Then the student turns and walks 50 meters south to their art classroom. What is the magnitude of the total distance traveled by the student?
a. 20 m
b. 30 m
c. 50 m
d. 70 m
Answers
Answer:
D
Explanation: Given that a student leaves their history classroom and walks 20 meters north to a drinking fountain. Then the student turns and walks 50 meters south to their art classroom.
The distance is a scalar quantity.
The distance = 50 + 20
distance = 70 metres
Therefore, the magnitude of the total distance traveled by the student is 70 metres. Which is option D
if a curve with a radius of 98 m is properly banked for a car traveling 68 km/h , what must be the coefficient of static friction for a car not to skid when traveling at 93 km/h ?
Answers
Thus, the coefficient of static friction for a car not to skid when travelling at 95 km/h is 0.32.
What is Centripetal force?
A centripetal force is a force that is delivered to a curved object and is directed toward the axis of rotation or the centre of curvature.
Centripetal force is measured in Newtons.
The centripetal force always acts in a direction that is opposite to the direction in which the object is travelling. Using Newton's second rule of motion, it is established that the centripetal force of an object moving in a circular path always acts in the direction of the circle's centre.
According to the Centripetal Force Formula, the centripetal force is calculated as the square of the radius and the product of the mass (in kg) and tangential velocity (in m/s) (in metres). According to this calculation, the tangential force will increase by twice as much as the centripetal force.
Learn more about Centripetal force from given link
https://brainly.com/question/20905151
#SPJ4
how much work does juanita do if she uses a force of 40 newtons to pull 2 friends on a wagon for 32 meters?
Answers
Juanita does 1280 joules of work to pull her 2 friends on the wagon over a distance of 32 meters with a force of 40 newtons.
To calculate the amount of work Juanita does, we need to use the formula:
Work = Force x Distance x cos(theta)
where:
Force: the amount of force applied (in newtons)
Distance: the distance the object is moved (in meters)
theta: the angle between the direction of the force and the direction of motion (in degrees)
In this case, Juanita applies a force of 40 newtons to pull the wagon with her 2 friends, over a distance of 32 meters.
We don't have information about the angle between the force and the direction of motion, but we can assume that the force is applied in the direction of motion (i.e., theta = 0 degrees).
Using this information, we can calculate the work Juanita does as follows:
Work = Force x Distance x cos(theta)
Work = 40 N x 32 m x cos(0)
Work = 1280 joules
Therefore, Juanita does 1280 joules of work to pull her 2 friends on the wagon over a distance of 32 meters with a force of 40 newtons.
For similar questions on work, force and distance,
https://brainly.com/question/28773261
#SPJ4
what are the fundamental units used in physics?
Answers
Answer:
Metre, kilogram, second, ampere, kelvin, candela, and mole
Explanation:
A base unit (also referred to as a fundamental unit) is a unit adopted for measurement of a base quantity
When a 5 kg rock is dropped from a height of 6 m on Planet X, it loses 24 J of GPE. What is the acceleration due to gravity on Planet X?
Answers
Answer:
g = 1.25m/s²
Explanation:
Given the following data;
Mass = 5kg
Height = 6m
Gravitational potential energy = 24J
To find the acceleration due to gravity;
Potential energy can be defined as an energy possessed by an object or body due to its position.
Mathematically, potential energy is given by the formula;
\( P.E = mgh\)
Where,
P.E represents potential energy measured in Joules.
m represents the mass of an object.
g represents acceleration due to gravity measured in meters per seconds square.
h represents the height measured in meters.
GPE = mgh
Substituting into the equation, we have;
24 = 5*6*g
24 = 30g
g = 30/24
g = 1.25m/s²
Therefore, the acceleration due to gravity on Planet X is 1.25m/s².
Answer:
g=0.8m/s^2
Explanation:
M=5kg
h=6m
GPE=24J
GPE=Mgh
g=GPE/Mh
g=24J/(5kg)(6m)=0.8
g=0.8m/s^2
What is the First ever Rover to land on mars. PLS HELPP I WILL GIVE BRAINLEIST TO WHO ANSWERS FIRST
Answers
A group of two or more atoms, strongly joined together are called what?
Answers
Answer:
compound
Explanation:
You have drawn a model of metal and plastic showing how they transfer heat. According to your model, why is metal
able to transfer heat energy more quickly than plastic molecules?
Answers
Explanation:
Metal is good conductor of heat due to :
(A) Tightly packed atoms which transfer vibrations quickly to the next atoms.
(B) Free electrons near the heat source gets excited and transfer Kinetic Energy through collisions with atoms and other free electrons.