solid disk pulley of radius 0.11 m rotates about an axis through its center. What is its moment of inertia
Answers
The moment of inertia of a solid disk pulley of radius 0.11 m rotating about its center axis is 0.048 kg·m².
The moment of inertia (I) of a solid disk pulley can be calculated using the formula I = (1/2) * M * R², where M is the mass of the disk and R is its radius. However, in this case, the problem provides the radius of the disk (0.11 m) but not its mass. To calculate the moment of inertia, we need to know the mass of the disk.
The moment of inertia depends on the mass distribution of the object. For a solid disk, the mass is uniformly distributed, so we can use the formula I = (1/2) * M * R², where M is the mass of the disk and R is its radius.
To find the mass of the disk, we can use the formula for the mass of a disk, which is M = density * volume. However, the problem does not provide the density of the disk. If the density is known, we can calculate the mass by multiplying the density by the volume of the disk, which is given by the formula volume = π * R² * h, where h is the height or thickness of the disk.
Since the density and height of the disk are not provided, we cannot calculate the exact moment of inertia. However, if the mass of the disk is given, we can substitute it into the formula I = (1/2) * M * R² to find the moment of inertia.
To know more about moment of inertia refer here:
https://brainly.com/question/31045808#
#SPJ11
Related Questions
Read the ruler in millimeters to the correct degree of precision
3.50
3.55
35
35.1
Answers
Answer:
The answer is = 35.1 you can see by zooming.
Answer:
The answer would be 35.1
A 1.0-kg block of aluminum is at a temperature of 50°C. How much thermal energy will it lose when its temperature is reduced by half? The specific heat of aluminum is 897 J/(kg •K).
Answers
Answer:
22425 J
Explanation:
From the question,
Applying
Q = cm(t₂-t₁).................. Equation 1
Where Q = Thermal Energy, c = specific heat capacity of aluminium, m = mass of aluminium, t₂ = Final Temperature, t₁ = Initial Temperature.
Given: c = 897 J/kg.K, m = 1.0 kg, t₁ = 50 °C, t₂ = 25 °C (The final temperature is reduced by half)
Substitute these values into equation 1
Q = 897×1×(25-50)
Q = 897×(-25)
Q = -22425 J
Hence the thermal energy lost by the aluminium is 22425 J
If an object moves at a constant speed, the line on a distance/time graph would be
Answers
Answer: straight
Explanation:
If an object moves at a constant speed, the line on a distance/time graph would be straight.
Since the object is moving at a speed which is constant, it'll have a straight line because the direction of the object is not changed.
In a house 3 bulbs of 100 Watt each lighted for 5 hours daily, two fans of 50 Watt each used for 10 hours daily, and an electric heater of 1 kW is used for half an hour daily. Caleulate the total energy consumed in a month of 31 days and its cost at the rate of Rs 3.60 per kWh.
Answers
Answer:
Bahhhhhhhhhhhhhhhhhhh perks pls
Explanation:
Which of the following does Bernoulli's principle help to explain?
A. Flying
B. Surface tension
C. Floating
D. Hydraulics
Answers
Hope this helps
A student climbs to the top of the gym and drops a baseball to the ground below. A physics student standing nearby has a motion sensor and determines that the baseball hit the ground with a velocity of 17 m/s. if you ignore air resistance, how long was the baseball falling through the air?
Answers
Answer:
The baseball was falling during 1.733 seconds.
Explanation:
The baseball experimented a free fall, which is a particular case of uniformly accelerated motion, in which object is accelerated by gravity. In this case, we need to determine the time spent by the ball before hitting the ground (\(t\)), measured in seconds, which is determined by the following kinematic formula:
\(t = \frac{v-v_{o}}{g}\) (1)
Where:
\(v_{o}\), \(v\) - Initial and final speeds of the baseball, measured in meters per second.
\(g\) - Gravitational acceleration, measured in meters per square second.
If we know that \(v_{o} = 0\,\frac{m}{s}\), \(v = 17\,\frac{m}{s}\) and \(g = 9.807\,\frac{m}{s^{2}}\), then the time spent by the baseball is:
\(t = \frac{17\,\frac{m}{s}-0\,\frac{m}{s} }{9.807\,\frac{m}{s^{2}} }\)
\(t = 1.733\,s\)
The baseball was falling during 1.733 seconds.
A small child weighs 25 kg. If mommy left him sitting on top of the stairs, which are 10 m high, how much energy does the child have?
Answers
Answer:
PE = 2450 Joules
KE = Assuming the child is at rest (not moving or accelerating), there is no Kinetic Energy
Explanation:
PE = potential energy
m = mass
g = gravity
h = height
PE = mgh
m = 25 kg
h = 10 m
g = 9.8 (when on Earth, gravity is always this number with more or less decimals)
\(PE = (25)(9.8)(10)=2450J\)
Students performed multiple trials of a tennis ball rolling across the floor and recorded their observations in the table shown below.
Trial Observation
1 rolled toward the left for 6 meters before stopping
2 rolled 12 meters in 5 seconds before stopping
3 stopped after it rolled 4 meters in 2 seconds
4 stopped after it rolled toward the right for 3 meters in 1 second
From which trials can the velocity of the tennis ball be determined?
A.
4 and 2
B.
3 and 1
C.
1 and 4
D.
2 and 3
Answers
The trials where the velocity of the tennis ball is to be determined should be option c. 1 and 4.
What is velocity?It is the quantity of the vector that defined the rate where an object is to be changed the position. Here the person could be imagined and then moved in a rapid way like one step forward and one step back.
So here it should be rolled to the left hand side and it can be stopped after it rolled towards the right hand side.
learn more about velocity here: https://brainly.com/question/1303810
What is the type of radioactive decay represented by the equation above? A. Gamma B. Fusion C. Alpha D. Fission 40. Alberta uses clean coal technology. This means that the coal has a lower i content than coal in other parts of Canada, which results in reduced ii The statement above is completed correctly by the information in row olla sdf to ridW Row i A. sulfur greenhouse gas emissions acid deposition sulfur carbon greenhouse gas emissions acid deposition carbon B. C. D. 29. Which of the following graphs depicts the relationship between gravitational field strength and the mass of the International Space Station orbiting Earth? A. Field Strength (N/kg) C. Field Strength (N/kg) Mass (kg) Mass (kg) B. Field Strength (N/kg) D. Field Strength (N/kg) Mass (kg) CADLC 30. Which of the following sequences of colours represents the changing temperatu from the surface to the atmosphere of the sun? a A. Red, orange, yellow, blue B. Yellow, red, orange, blue C. Orange, yellow, blue, red D. Blue, yellow, orange, red 1. When a star undergoes a blue shift, the star is A. moving away from an observer B. moving towards an observer C. moving parallel to an observer D. stationary Mass (kg)
Answers
The sun is Yellow, red, orange, and blue. Therefore option B is correct.
The star is moving toward an observer. Therefore option B is correct.
39. The type of radioactive decay represented by the equation provided Gamma. Therefore option A is correct.
40. The statement is completed correctly by the information which states that the coal in Alberta has a lower carbon content than coal in other parts of Canada, resulting in reduced greenhouse gas emissions.
29. graph B depicts the relationship between gravitational field strength and the mass of the International Space Station orbiting Earth.
30. The correct sequence of colors representing the changing temperature from the surface to the atmosphere of the sun is Yellow, red, orange, and blue. Therefore option B is correct.
1. When a star undergoes a blue shift, it indicates that the star is moving toward an observer. Therefore option B is correct.
Know more about radioactive decay:
https://brainly.com/question/1770619
#SPJ12
Which of these stars has the shortest life expectancy?
a. an isolated 1Msun star
b. a 1Msun star in a closed binary system with a 0.8Msun star
c. a 1Msun star in a closed binary system with a 2Msun star
Answers
A 1Msun star in a closed binary system with a 2Msun star.
Systems in which the two stars are close to each other are called close binary star system.
The most massive stars have the shortest lifespans. The reason is that they have most fuel, they burn it so enormously that their lifetimes are very short. As a 1Msun star in a closed binary system with a 2Msun star becomes the massive star so it has the shortest life expectancy.
a. No, an isolated 1Msun star has not the shortest life expectancy.
b. No, a 1Msun star in a closed binary system with a 0.8Msun star has not the shortest life expectancy.
c. Yes, A 1Msun star in a closed binary system with a 2Msun star has the shortest life expectancy.
Learn more about star from:
https://brainly.com/question/21521087
#SPJ4
What is the cause of change in properties of matter
Answers
Answer:
Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
Explanation:
Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.
Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. Which of the following are true? You MUST select ALL correct answers to earn full credit for this question.
reactivity increases
reactivity decreases
neon has another shell (energy level, orbit), meaning the atom will be larger
sodium has another shell (energy level, orbit), meaning the atom will be larger
valence electrons in sodium are farther from the nucleus
atomic number 11 does not have a full electron shell.
Answers
Moving from the element with atomic number 10 to atomic number 11 on the periodic table changes observed are :
Reactivity increases,
Sodium has more shell,
Valence electrons in sodium are farther from the nucleus,
Atomic number 11 does not have a full electron shell
Atomic number in periodic table :In increasing order of atomic number, the elements are listed. The amount of protons in an atom's nucleus is indicated by its atomic number. An element's identity is determined by its proton count. The number of protons determines an element's identity.
What is relativistic effect in periodic table?The indirect relativistic effect amplifies the decreases in the binding energies of the valence d and f electrons as they move down the periodic table. As a result, the d electrons in the heavier coinage metals become more chemically active, leading to higher oxidation states in these elements.
To know more about electron shell :
https://brainly.com/question/5236337
#SPJ1
Which of the following statements about Australian football is TRUE?
A.
The players tend to wear a large amount of padding.
B.
Goals are scored by kicking the ball through goalposts.
C.
Each team has a number of set plays for both offense and defense.
D.
The constant movement of the ball is similar to baseball.
Answers
Answer:
B.
Goals are scored by kicking the ball through goalposts.
Explanation:
Find the force of attraction between a 60 kg student and:A. Another student of mass 80 kg, 1.4 m away.B. A 130,000 kg blue whale, 10 m away.C. The Great Pyramid in Egypt, with an estimated mass of 5.22 x 109 kg, 1.0 km away.D. A 45 g golf ball, 95 cm away.
Answers
According to Newton's Law of Universal Gravitation, the force between to bodies of masses m and M separated by a distance r is:
\(F=G\frac{Mm}{r^2}\)Where G is the gravitational constant:
\(G=6.67\times10^{-11}N\frac{m^2}{\operatorname{kg}^2}\)In all cases, use M=60kg, and replace the values of the second mass m and the distance r accordingly.
A) m=80kg, r=1.4m
\(\begin{gathered} F=(6.67\times10^{-11}N\frac{m^2}{\operatorname{kg}^2})\times\frac{(60\operatorname{kg})(80\operatorname{kg})}{(1.4m)^2} \\ =1.6\times10^{-7}N \end{gathered}\)B) m=130,000kg, r=10m
\(\begin{gathered} F=(6.67\times10^{-11}N\frac{m^2}{\operatorname{kg}^2})\times\frac{(60\operatorname{kg})(130,000\operatorname{kg})}{(10m)^2} \\ =5.2\times10^{-6}N \end{gathered}\)C) m=5.22*10^9kg, r=1000m
\(\begin{gathered} F=(6.67\times10^{-11}N\frac{m^2}{\operatorname{kg}^2})\times\frac{(60\operatorname{kg})(5.22\times10^9\operatorname{kg})}{(1000m)^2} \\ =2.1\times10^{-5}N \end{gathered}\)D) m=0.045kg, r=0.95m
\(\begin{gathered} F=(6.67\times10^{-11}N\frac{m^2}{\operatorname{kg}^2})\times\frac{(60\operatorname{kg})(0.045\operatorname{kg})}{(0.95m)^2} \\ =2.0\times10^{-10}N \end{gathered}\)Write the importance of international bureau of weights and measurement.
Answers
Answer:
The importance of international bureau of weights and measures are;
1. to bring unification of measurement system.
2. to establish and preserve fundamental international prototypes.
3. to verify national standards, etc.
difference between speed and velocity
Answers
Answer:
Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. Put another way, speed is a scalar value, while velocity is a vector.
Explanation: I hope this help!!! :)..
What does it mean if an object sinks to the bottom of the cylinder?
Answers
An object's density influences whether it will float or sink in another material. If an object is less dense than the liquid it is placed in, it will float. If an object is denser than the liquid in which it is immersed, it sinks.
What exactly is density?The density of a substance is a measure of how tightly it is packed. It is stated in terms of mass per unit volume. Density is represented by the symbol D, and the density formula is: = m/V, where is the density, m is the object's mass, and V is its volume. A material's density is defined as its mass per unit volume. The most frequent density symbol is, however the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume.
Here,
The density of a thing influences whether it will float or sink in another substance. If an object is less dense than the liquid in which it is placed, it will float. If an object is more dense than the liquid it is immersed in, it will sink.
To know more about density,
https://brainly.com/question/943734
#SPJ4
PLS HELP MEH!!!!
Sound travels fastest in
a) air
b) water
c) glass
d) diamond
WILL MARK BRAINLIEST IF ANSWER
Answers
Answer:
hope this helps
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids
so your answer would be B.
At the time of Copernicus, what was the strongest argument against the heliocentric or Sun-centered model of the Solar System?
The fact that the earth does not seem to be in motion
Telescopic observations showing that the solar system orbits were not circular
The fact that Mars has episodes of retrograde motion
The fact that Venus shows phases
Answers
Answer:
the fact that Venus shows phases
Explanation:
the distance traveled in a car varies directly as the amount of gasoline used. if a car travels 520 miles and uses 26 gallons of gas, find the constant of variation or miles per gallon.
Answers
If a car travels 520 miles and uses 26 gallons of gas, the constant of variation or miles per gallon is 20.
When two variables are said to be directly proportional, it means that they have a constant ratio. In this case, the distance traveled by a car is directly proportional to the amount of gasoline used.
Let's denote the distance traveled by 'd' and the amount of gasoline used by 'g'. Then we can write this relationship as:
d ∝ g
This can also be written as:
d = k * g
Where k is the constant of variation or miles per gallon. It represents the number of miles that can be traveled using one gallon of gasoline.
To find the value of k, we can substitute the given values of distance and gasoline in the above equation:
520 = k * 26
Simplifying this equation, we get:
k = 520 / 26
k = 20
This means that the car can travel 20 miles for every gallon of gasoline used.
In summary, the distance traveled by a car varies directly as the amount of gasoline used. The constant of variation or miles per gallon represents the number of miles that can be traveled using one gallon of gasoline. To find the constant of variation, we can use the given values of distance and gasoline and solve for k using the equation d = k * g.
To learn more about constant of variation click on,
https://brainly.com/question/7133894
#SPJ4
SPEAR is a storage ring at the Stanford Linear Accelerator which has a circulating beam of electrons that are moving at nearly the speed of light (2.998 108 m/s). If a similar ring is about 80.0 m in diameter and has a 0.59 A beam, how many electrons are in the beam
Answers
Answer:
n = 3.1x10¹²
Explanation:
To find the number of electrons we need to find first the charge (q):
\( I = \frac{q}{\Delta t} \rightarrow q = I*\Delta t \) (1)
Where:
I: is the electric current = 0.59 A
t: is the time
The time t is equal to:
\(v = \frac{\Delta x}{\Delta t} \rightarrow \Delta t = \frac{\Delta x}{v}\) (2)
Where:
x: is the displacement
v: is the average speed = 2.998x10⁸ m/s
The displacement is equal to the perimeter of the circumference:
\( \Delta x = 2\pi*r = \pi*d \) (3)
Where d is the diameter = 80.0 m
By entering equations (2) and (3) into (1) we have:
\(q = I*\Delta t = I*\frac{\Delta x}{v} = \frac{I\pi d}{v} = \frac{0.59 A*\pi*80.0 m}{2.99 \cdot 10^{8} m/s} = 4.96 \cdot 10^{-7} C\)
Now, the number of electrons (n) is given by:
\( n = \frac{q}{e} \)
Where e is the electron's charge = 1.6x10⁻¹⁹ C
\( n = \frac{q}{e} = \frac{4.96 \cdot 10^{-7} C}{1.6 \cdot 10^{-19} C} = 3.1 \cdot 10^{12} \)
Therefore, the number of electrons in the beam is 3.1x10¹².
I hope it helps you!
A block of mass m is launched by a spring of negligible mass along a horizontal surface of negligible friction. The spring constant of the spring is k. The spring is initially compressed a distance x₀. The block is released from rest. Some time after the block is released and travels in the direction shown in the figure, the spring compression is \(x_f\). Which of the following mathematical calculations can a student use to determine the speed \(v_f\) of the block at this new position?
Answers
the spring constant of the spring is k. the spring is initially compressed a distance x0. the block is released from rest.
What is distance and velocity?Velocity is the measure of the amount of distance an object covers in a given amount of time. Here's a word equation that expresses the relationship between distance, velocity and time: Velocity equals distance travelled divided by the time it takes to get there.
Is distance equal to speed?Speed = Distance/Time – This tells us how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Time = Distance / Speed, as the speed increases the time taken will decrease and vice versa.
To know more about distance visit
https://brainly.com/question/13034462
#SPJ1
What is the direct path and direction from point A to B? 1,Motion 2,Time 3,Distance 4,Displacement PLS HURRY!
Answers
The direct path and direction from point A to B is called "Displacement". (Option D).
How else can displacement be defined?Displacement is described as a change in an object's location. It is a vector quantity with a magnitude and a direction. It is depicted as an arrow pointing from the starting point to the ending point.
For instance, if an object travels from A to B, the object's location changes. Displacement is the change in the location of an item.
The mathematical expression of displacement is given as:
Δx = xf - x₀; Where
xf = Final Position
x₀ = Initial position; and
Δx = displacement.
Learn more about displacement;
https://brainly.com/question/14422259
#SPJ1
four reasons for launching a satellite into orbit around earth
Answers
A 230 v mains powered electrical drill draws a current of 2.5 A calculate the power of the drill at use
Answers
which type of rock can only form below earths surface?
Answers
Answer: Igneous it forms because of magma but magma is under the earths surface so its Igneous
Explanation:
Answer:
its metamorphic.
Explanation:
Which term describes a long-term weather pattern?
air mass
climate
humidity
front
Answers
Answer:
Explanation:
The answer is Climate
Answer:
climate
Explanation:
Climate is defined as an area's long-term weather patterns. The simplest way to describe climate is to look at average temperature and precipitation over time.
Light propagates from soda lime glass (n = 1.518) into pyrex glass (n = 1.473). determine the critical angle for this situation.
Answers
Light propogates from soda lime glass into pyrex glass of different refractive indices indicating a change in the medium which can be used to find out the critical angle.
The critical angle is the angle of incidence for which the angle of refraction comes out to be 90°. It is related to the refractive indices (Plural of refractive index) by the following relation:
Sini = 1/u, where u is the ratio of refractive index of medium 2 and medium 1
According to the question, Light propogates from soda lime glass (Medium 1, u1=1.518) into pyrex glass(Medium 2, u2=1.473), i.e. from a denser medium to rarer medium. So, the ratio of refractive index becomes u2/u1= 1.473/1.518=0.97
Putting the ratio in the above-mentioned formula,
∴ Sini = 1/0.97
i= 75.9°
Hence, the critical angle(i) for the given situation is 75.9°.
Learn more about Critical angle here, https://brainly.com/question/15009181
#SPJ4
you want to pull a 5 kg block up a frictionless ramp with an acceleration of 4 m/s2. what force do you need to apply on the block along the direction of the ramp's surface if the ramp is angled at 30 degrees above the horizontal?
Answers
Explanation: use a calculator
1 What happens to the direction of the force on a current-carrying wire if the
direction of the current and the magnetic field are both reversed?
Answers
Answer:
If the forefinger points in the direction of the magnetic field and the middle finger in the direction of the current, then, the thumb points in the direction of the force exerted on the conductor.So, if the current is reversed in the conductor placed in a magnetic field the direction of force is also reversed..