On what does the magnitude of an applied torque depend?
The mass distribution of the extended object.
The distance between the point of force application and the axis of rotation of the object.
The orientation of the force.
The magnitude of the force.
Answers
The magnitude of an applied torque depends on the distance between the point of force application and the axis of rotation of the object. The correct option is B.
Torque is the rotational equivalent of force, and it is a measure of the amount of force required to rotate an object around an axis. The magnitude of an applied torque depends on several factors, including the distance between the point of force application and the axis of rotation of the object.
The further the distance, the greater the torque required to rotate the object. Other factors that can affect the magnitude of an applied torque include the mass distribution of the extended object and the orientation of the force.
However, the distance between the point of force application and the axis of rotation of the object is generally the most significant factor.
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Related Questions
Question 6 of 25
How does the electric force between two charged particles change if the
distance between them is increased by a factor of 3?
OA. It is increased by a factor of 9.
B. It is reduced by a factor of 9.
C. It is increased by a factor of 3.
D. It is reduced by a factor of 3.
Answers
When the distance between the two charged particles is increased by a factor of 3, the force between them is decreased by a factor of 9.
Option B.
What is the electric force between two particles?The electric force between two charged particles is determined by applying Coulomb's law.
Coulomb's law states that the force of attraction or repulsion between two charged particles is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges.
F = kq²/r²
where;
k is Coulomb's constantq is the magnitude of the charger is the distance between the chargesFrom the formula above, we can see that when the distance between two charged particles increases by a factor of 3, the force between them decreases by a factor of 9.
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________ are more likely to be overrepresented among voters who turn out for the election.
Answers
Wealthier people are more likely to be overrepresented among voters who turn out for the election.
Every second even-numbered year, there are national elections. Elections are held every four years for the president, vice president, a third of the Senate, and the entire House (on-year elections). One-third of the Senate and the entire House is up for election in even-numbered years when there isn't a presidential election (off-year elections). The National Voter Registration Act of 1993 is one example of a federal law that has been used to try and increase voter participation. In the United States, elections are held for representatives at the federal, state, and local levels of government. At the federal level, the president is chosen by the citizens of each state indirectly through the Electoral College.
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A student investigated the insulating properties of different materials. Figure 4 shows some of the equipment used by the student. Identify the independent variable and the dependent variable in this investigation
Answers
The experimenter manipulates or controls the independent variable to observe its impact on the dependent variable. Time taken is an independent variable. Temperature is the dependent variable.
What do the terms "dependent" and "independent" mean?A dependent variable is a variable that is measured or observed in scientific studies and whose value depends on the value of an independent variable.
Which of the aforementioned materials will be a good insulator in case?Ceramics, wood, rubber, plastic, and rubber are effective insulators. They are frequently employed in the construction of cooking tools, like as saucepan handles, to prevent heat from rising and burning the cook's hand. Also, the majority of electrical cables in appliances are coated with plastic.
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Write a hypothesis about the use of an object's physical
characteristics to determine its density. Use the format "if
then.
. because
and be sure to answer the
lesson question "How can the density of an object be
determined?"
Answers
If the mass of the object and the volume of the object is determined;
Then, the density of the object is determined by taking the ratio of the mass and volume.
What is density of an object?The density of an object is the ratio of the mass and volume of that object.
Mathematically;
Density = mass/volumeTo determine the density of an object therefore, the physical characteristics of mass and the volume of the object are measured.
The mass of the object is obtained using a scale or a balance.
The volume of the object if a solid is obtained using a displacement bottle. If it is a liquid, a measuring cylinder is used.
The density of the object is then obtained by taking the ratio of the mass and the volume of the object.
In conclusion, the density of an object is determined from the volume and mass ratio.
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two forces act on the wheel shown. a third force acts at point p. what direction and approximate magnitude should this third force act, so the net torque about the pivot is zero?
Answers
To ensure that the net torque about the pivot is zero, the third force at point P should be applied in a direction that creates an equal and opposite torque to counterbalance the torques created by the other two forces.
To determine the direction and approximate magnitude of the third force, we need more information about the specific configuration of the wheel, the positions of the forces, and the magnitudes of the other two forces.
Net torque refers to the combined effect of all the torques acting on an object. Torque is a rotational force that causes an object to rotate around an axis. It depends on two factors: the magnitude of the force applied and the distance between the point of application of the force and the axis of rotation.
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Atomic mass
Atomic number
Number of electrons
Number of neutrons
Answers
Answer:
Atomic number
Explanation:
For the chemical specie, Z is the atomic number of atom shown.
Usually with most elements;
ᵃₙX
X is the symbol of the element
a is the atomic mass or mass number
n is the atomic number
In this problem, A is the atomic mass
Z is the atomic number
Atomic mass is the number of protons and neutrons
Atomic number is the number of protons.
A radioactive decay is illustrated. Which radioactive emission is a product of this decay?
A)Alpha
B)beta
C)gamma
D)positron
Answers
The radioactive decay is shown in the image attached to this answer
Answer:
Alpha
Explanation:
An alpha decay is said to have occurred when the mass number of the daughter nucleus decreases by four units and the atomic number of the daughter nucleus decreases by two units.
If we look at the equation from left to right, we will notice that the mass number of the daughter nucleus decreased by four units and the atomic of the daughter nucleus number by two units compared to that of the parent nucleus leading to the emission of an alpha particle.
Why do we charge a capacitor under a DC voltage source only?
Answers
A house uses solar cells that generate 1.5 kw of electrical power to supply some of its energy needs. if the solar panels supply the house with 40 percent of the power it needs, how much power does the house use?
Answers
The electric power that the house use is 3.75kW.
According to the question, a house use solar cell that gives 1.5kW of electric power and the solar panels supply the house with the 40% of the power it need.
Voltage, or the potential of a charge to produce energy, and current, or the flow of electric charge, are the two main components of electric power. Any ratio of current and voltage values can provide a given amount of power.
Let there is x kW power that the house use.
Now it is given that 40% of the power is supplied that means
40% of x=1.5
x=\(\frac{(1.5)(100)}{40}\)
x=3.75kW
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The series is shown in over 100 countries. About 300 million people watch it every day. This makes The Bold and the Beautiful the most watched television series in the world. The first episode was shown on March 23, 1987 on the CBS network. The series was created by the soap opera writer William J. Bell and his wife, Lee Phillip Bell. It is the only American soap opera to have its daily episodes translated into Spanish for the Hispanic viewers in the United States. The series is set in Los Angeles, California. It tells the story of the Forrester family, who owns a fashion empire called Forrester Creations. The major members of the family are Eric Forrester (played by John McCook), the president of Forrester Creations, his wife Stephanie (Susan Flannery), their eldest son Ridge (Ronn Moss) and Brooke Logan (Katherine Kelly Lang), who was married to both the father and the son. She owns most of Forrester Creations. This is because she created BeLieF, a formula which earned much money for the company. There used to be a second fashion company called Spectra Fashions. It was Forrester’s main competitor. The conflicts between the Forrester and the Spectra families was one of the major themes of the story.
Answers
More than a 100 nations broadcasted series. The Bold and the Beautiful teasers for the upcoming CBS soap opera hint at more conflict.
What does the earth's horizon look like?The line dividing the Earth's surface from the sky is known as the horizon. Earth-sky horizons and celestial horizons are the two basic categories of horizons. There are various sub-types of horizons for both Earth-sky and celestial horizons. Earth-sky horizons include the local horizon, regional horizon, and sea level horizon.
What is the horizon that is lit?The particle horizon, also known as the cosmological horizon, comoving horizon, or cosmic light horizon, is the furthest a particle's light may have travelled before reaching an observer during the early universe's history.
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a baseball with a mass of 0.8 kg is moving at asperd of 45.0 m/s . what is the baseballs kinetic energy
SOMEONE HELP PLEASE!!
Answers
Answer:
0.5*0.8*45^2. =810J
Explanation:
KE=1/2 mv^2
A student is standing 8 m from a roaring truck engine that is measured at 20 dB. The student moves 4 m closer to the engine. What is the measured sound intensity at the new distance? (dB)
Can you also explain why? I need to know how to do it and I don't know how to
Answers
Sound intensity is inversely proportional to the square of the distance traveled by the sound.
Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. The sound travels in all the mediums i.e. solid, liquid, and gas.
According to the question, the sound frequency which he is hearing is 20dB when he is standing 8m away from the engine.
Sound intensity is inversely proportional to the square of the distance traveled by the sound. Thus;
r1^2 divide by r2^2 = L2divideL1
where r= distance (m)
L= sound intensity (decibel dB)
8squared divide by 4 squared = L2 divide 20 dB
L2 = 4 × 20
L2= 80 dB
This means that the sound is increased from 20 dB to 80 db.
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The mechanical advantage of a pulley ytem i 4. 0. Uing thi pulley ytem, how much force do you need to exert to lift a 500. 0N box?
Answers
The force exerted to push a box of 500 N is equal to
What is the mechanical advantage?The mechanical advantage can be demonstrated as the ratio of the output force to the input force. The mechanical advantage can be calculated by the ratio of the forces involved to accomplish the work.
The ratio of the resistance force and effort is known as the actual mechanical advantage which can be comparatively less. The efficiency of a machine can be calculated by equating the ratio of its output to its input.
Given the weight of the box = 500 N
The mechanical advantage of a pulley = 4.0
Mechanical advantage = Load/Effort
Input force or exerted force = Load/ M.A.
Exerted force = 500/4 = 125 N
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if you operate a 2.0 kilowatt for 2 hours how much energy do you use
Answers
Answer:
4 kWh/day
Explanation:
hope this helps!
~mina-san
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Please use 3 content related sentences. (
Answers
Answer:
The positive ball would go first to the negatively charged plate.
Explanation:
After which, it would hold a more negative charge. Due to the negative charge, it would travel towards the positive plate. Thereby, it would transfer negative electrons to the positive plate once more. In doing so, it would transfer positive protons to the negative plate. After which, it would hold more negative electrons and be drawn towards the positive plate once more. The Process would continue until the once-positive and once-negative became neutral ( and were discharged.) Additionally, the ball hanging on the insulator thread would also be neutral and discharged.
Q3. Calculate the average force exerted on the 0.057-kg tennis ball by tennis racquet, assuming that the
ball’s speed just after impact is 58 m/s, that the initial velocity before impact is 10 m/s, and that the ball
remained in contact with the racquet for 5.0 x 10-3s (milliseconds)?
Answers
The average force exerted on the tennis ball by the tennis racquet is 507.6 N.
What is impulse?In physics, an object's change in momentum as a result of a force being applied to it over a certain amount of time is referred to as an impulse. Its magnitude is determined by multiplying the force by the period of time it acts. Mathematically, the concept of impulse is:
Impulse = force x time
To calculate the average force exerted on the tennis ball by the tennis racquet, we can use the impulse-momentum theorem, which states that:
Impulse = Change in momentum
The impulse is the product of the force applied and the time during which it is applied. In this case, the ball remains in contact with the racquet for 5.0 x 10⁻³ s. The alteration in momentum of the ball is:
Δp = pfinal - pinitial
where p is momentum.
The initial momentum of the ball is:
pinitial = m × vinitial
where m is the mass of the ball and vinitial is the initial velocity of the ball.
The final momentum of the ball is:
pfinal = m × vfinal
where vfinal is the velocity of the ball just after impact.
We can now calculate the change in momentum:
Δp = m × vfinal - m × vinitial
Δp = m × (vfinal - vinitial)
The impulse can be calculated as:
Impulse = force × time
Equating the impulse to the change in momentum, we get:
force × time = m × (vfinal - vinitial)
Solving for force, we get:
force = m × (vfinal - vinitial) / time
Substituting the given values, we get:
force = 0.057 kg × (58 m/s - 10 m/s) / (5.0 × 10⁻³ s)
force = 507.6 N
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asap please thank you!!
Answers
Answer:
Opinions of the author
Not relevant in a scientific paper :)
what type of glass has been exposed to high temperatures, so that when it breaks, it shatters into tiny pebble-like fragments that are less dangerous?
Answers
When broken, tempered glass shatters into thousands of tiny pebbles, effectively eliminating the risk of human injury from sharp edges.
Tempered glass is a type of soda-lime glass that has been heat-treated to make it more durable. During the heat-tempering process, the exterior of the glass is force-cooled, causing it to solidify quickly while the centre cools more slowly. As the inside of the glass cools, it pulls on the stiff, compressed outer layer, causing tension in the centre.
Tempered glass is also known as safety glass because when it breaks, it breaks into relatively dull cube-shaped pieces rather than long, thin shards. For this reason, tempered glass is also used in passenger car windows and shower doors.
Hence, tempered glass plays an vital role in safety measures.
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A ball is dropped from a height of 23 meters. Find the velocity of the ball just prior to
striking the ground.
round to nearest hundreds
Answers
21.168 m/s velocity of the ball just prior to striking the ground.
Round to nearest hundreds is 21.17
What is the meaning of velocity?The direction of the movement of the body or the object is defined by its velocity. Most of the time, speed is a scalar quantity. In its purest form, velocity is a vector quantity. It measures how quickly a distance changes. It is the rate at which displacement is changing.
“equations of motion”
How long does it take?
s = ut + ½ at²
23 m = 0 + ½ *9.81m/s² * t²
23 m = 4.905 t²
t² = 23 / 4.905
t² = 4.689
t =2.165s
What velocity will it hit the ground?
Take ↓ direction as +
v = u + at
v = 0 + 9.81 m/s² * 2.16 s
v =21.168 m/s
Velocity = 21.168 m/s downwards. ( have left you to decide on significant digits in the answer.
round to nearest hundreds is 21.17
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when a force is applied to an object the work done is:
Answers
Answer:
Explanation: When a force is applied on an object, the work done is the product of the applied force and the displacement produced(distance moved) by the force...
Work=ForceXDisplacement
A motorcycle cop, parked at the side of a highway reading a magazine, is passed by a woman in a red Ferrari 308 GTS doing 120.0 km/h. After a few attempts to get his cycle started, the officer roars off 2.00 s later. At what average rate must he accelerate if 159 km/h is his top speed and he is to catch her just at the state line 3.04 km away?
Answers
Answer:
XZXDHF
Explanation:ZDHF
How would you describe the motion of all three vehicles?
Answers
Answer:In physics, motion is defined as a change in the position of a body with respect to a reference point. ... Think about the motion of three cars: one in the fast-moving carpool lane, another in the middle lane, and the third in the slow lane used to enter or exit the freeway.
Explanation:
What is the name of the following atoms?
a) An atom with 3 protons and 4 neutrons:
b) An atom with 2 protons and 4 neutrons:
c) An atom with 4 protons and 4 neutrons:
Answers
Answer:
an atom with 3 protons and 4 neutrons
Explanation:
a rock hits the ground at a speed of 15 m/s and leaves a hold 50 cm deep. after it hits the ground, what is the magnitude of the rock's (assumed) uniform acceleration?
Answers
The magnitude of the rock's (assumed) uniform acceleration is v² - 225.
Initial speed, u = 15 m/s
Displacement, s = 50 cm = 0.5 m
Magnitude of acceleration, a = ?
We know, v² - u² = 2as
Let's substitute the given values into the above formula. v² - u² = 2as (v is the final velocity)
Final velocity, v = ?u = 15 m/s (Initial velocity)
s = 0.5 m (Displacement)
a = ?
v² - u² = 2as (v² - u²)/2s = a(v+u)/2(a = (v² - u²)/2s)
(a = (v² - u²)/2s)(a = (v² - (15 m/s)²)/2(0.5 m))(a = (v² - 225)/1)(a = v² - 225)
Therefore, the magnitude of the rock's uniform acceleration is v² - 225, given that a rock hits the ground at a speed of 15 m/s and leaves a hold 50 cm deep after it hits the ground.
The magnitude of the rock's uniform acceleration is v² - 225.
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Which statements best describe X-rays?
Answers
Answer:x rays are electromagnetic waves.
x rays are transverse waves
x rays travel at the speed of light
Explanation:
Question 4 of 10
Which of the following changes occurs naturally in a system over time?
A. Becoming more organized
B. Becoming more efficient
C. Increasing in energy
OD. Increasing in randomness
Answers
Answer: D. Increasing in randomness.
Explanation: The concept related to this change is entropy. Entropy is a measure of the randomness or disorder in a system. According to the second law of thermodynamics, the entropy of an isolated system tends to increase over time. This means that natural processes often lead to an increase in randomness or disorder.
For example, imagine a container of gas molecules. Initially, the molecules may be confined to one side of the container, creating a region of higher concentration. However, over time, the gas molecules will naturally spread out and become more evenly distributed throughout the container. This increase in randomness or disorder corresponds to an increase in entropy.
examples of contact force
Answers
Answer:
Reaction force. An object at rest on a surface experiences reaction force.
Tension. An object that is being stretched experiences a tension force.
Friction. Two objects sliding past each other experience friction forces.
Air resistance.
Explanation:
Answer with Explanation:
Conntact forces: Frictional force, Muscular force etc
Non-contact : gravitational, electrostatic, and magnetic
I hope im right!!
Question 4 of 10
You add 100 mL of water at 20°C to 200 mL of water at 80°C. What is the
most likely final temperature of the mixture?
A. 50°C
OB. 60°C
C. 100°C
OD. 30°C
(asons
Answers
Heat received by cold water equals heat lost by hot water. 60°C is the ultimate temperature.
What does the term temperature mean?An evaluation of an object or substance's warmth or coolness in relation to a reference value.
a measurement of how much heat is required to raise the temperature of a material by one degree Celsius for every gramme.
The unit of measurement for specific heat is Joules per gramme per degree Celsius (J/g °C).
Let c represent the water's specific heat.
based on the calorimetry concept.
Heat received by cold water equals heat lost by hot water.
200 * c * (80 - T) = 100 * c * (T - 20) (T - 20)
∴ 200c (80-T) = 100c(T-20) (T-20)
∴2 (80-T) = T - 20
∴160-2T=T-20
∴ 160+20 = T +2T
∴180 = 3T
∴T = 60 C.
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You see a flash of lightning and hear thunder 3 seconds later. If the air temperature is 24°C that day, determine how far away the storm is.
Answers
Answer:
Explanation:
speed of sound in 24 degrees celsius
345.48m/s
hence 345.48m/s x 3s = 1036.44m
A 523 N force is applied to an object, causing it to accelerate 12 m/s2. The mass of the object is ____.
Answers
Answer:
43.58kg
Explanation:
The equation F=ma will help here.
F=ma
523N=m(12m/s^2)
43.58kg=m