Two forces produce the same torque. Does it follow that they have the same magnitude? A) yes B) no C) depends
Answers
The statement "Two forces produce the same torque. Does it follow that they have the same magnitude?" is a false statement.
What is a Torque?
Torque is a measure of how effectively a force causes an object to rotate around an axis or pivot. Torque is directly proportional to the magnitude of the force applied and the distance from the axis of rotation at which the force is applied. A torque can be produced by a force applied at any point on a lever arm.
An example involving Torque:
Consider the following scenario: Two people are trying to rotate a stubborn nut that is stuck in place, one using a wrench and the other using a pair of pliers. Although the wrench has a higher torque than the pliers because it applies a larger force at a greater distance from the pivot point, the pliers may be just as successful in loosening the nut if they are applied at a different position that generates the same torque as the wrench. This implies that two forces can produce the same torque without being of the same magnitude. The answer to the question is B. No, it does not follow that they have the same magnitude.
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Related Questions
a bicycle tire starts from rest and has an angular acceleration of 0.23 rad/s2. when it has made 10.0 rev, what is its kinetic energy? assume the moment of inertia is 0.18 kg m2.
Answers
To determine the kinetic energy of the bicycle tire, we can use the formula:
Kinetic energy (K.E.) = (1/2) * moment of inertia * angular velocity^2
Number of revolutions (N) = 10.0 rev
Moment of inertia (I) = 0.18 kg m^2
Angular acceleration (α) = 0.23 rad/s^2
Number of revolutions (N) = 10.0 rev
Moment of inertia (I) = 0.18 kg m^2
First, let's convert the number of revolutions to radians:
10.0 rev * (2π rad/1 rev) = 20π rad
Next, we can use the formula for angular acceleration to find the angular velocity (ω):
α = ω^2 - ω_0^2
Since the tire starts from rest, ω_0 = 0.
0.23 rad/s^2 = ω^2 - 0^2
ω = sqrt(0.23 rad/s^2) ≈ 0.479 rad/s
Now, we can calculate the kinetic energy using the formula:
K.E. = (1/2) * I * ω^2
K.E. = (1/2) * 0.18 kg m^2 * (0.479 rad/s)^2
K.E. ≈ 0.043 J
Therefore, the kinetic energy of the bicycle tire when it has made 10.0 revolutions is approximately 0.043 Joules.
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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:
At very high pressures, gases become what and will eventually do what
Answers
The Clausius-Clapeyron relation predicts that for every 1 K increase in surface temperature, assuming relative humidity and near-surface wind speeds are fixed, the evaporation from the surface will increase by approximately 7%. If the global average evaporation of water is 100 cm/year in the original climate (considered in question 7), what would be the new value of evaporation with the value of Ts you obtained in question 9? Express your answer in units of cm/year rounded to the nearest 1 cm/year. 11. (9 points.) Based on your answer to question 9, what are the values of global mean precipitation for the original climate (considered in question 7) and the perturbed climate (considered in question 9)? Express your answers in units of cm/year rounded to the nearest 1 cm/year. 12. (12 points.) Assume that the global mean changes in temperature and precipitation found above are applicable to Toronto. How would these changes influence the rate of physical weathering of the Toronto sidewalk pictured below? Would the rate of physical weathering be affected by changes in other types of weathering (i.e. biological and chemical weathering)? If so how? (Picture from CBC News.) 9. (5 points.) Under climate change, albedo is also expected to decrease because of melting glaciers and sea ice. If in combination with the atmospheric emissivity increasing to 0.97, the planetary albedo also decreases to 0.26, what is the new value of TUse your answer to question 7 as your initial guess for surface temperature. Express your answer to two decimal places in units of K.
Answers
The Clausius-Clapeyron relation predicts that for every 1 K increase in surface temperature, assuming relative humidity and near-surface wind speeds are fixed, the evaporation from the surface will increase by approximately 7%.
The original climate's temperature was 15.5°C (rounded off from 15.47°C), and in the perturbed climate, it increased to 19.57°C.
Therefore, the increase in temperature was 4.07°C.
For every 1 K increase in surface temperature, the Clausius-Clapeyron relation predicts that the evaporation from the surface will increase by approximately 7%.
Thus, the increase in evaporation rate will be:4.07 x 7% = 0.2849 or approximately 0.28 cm/year.
Therefore, the new value of evaporation will be:100 + 0.28 = 100.28 cm/year. It should be rounded off to 100 cm/year.
The increased precipitation will cause more water to seep into the pores of the Toronto sidewalk, which will freeze and expand in winter, exacerbating the physical weathering of the sidewalk.
The physical weathering rate will increase. As a result, other forms of weathering, such as chemical weathering, may be accelerated. As a result, the sidewalk's physical and chemical weathering will be significantly affected.
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The following circuit contains three capacitors C₁ = 16 µF, C₂ 6μF, and C3 = 10µF connected to a battery with an unknown emf &. The charge on capacitor C₁is Q₁ = 12 uc. 1. What is the equivalent capacitance Ceq of the circuit? H₁₂ A. 75 x 10-6 F B. 8. 0 x 10-6 F C. 10. 0 x 10-6 F D. 12. 0 x 10-6 F E 2. How much energy is stored on capacitor C₁? A. 49 x 10-6 J C. 25 x 10-5) B. 3. 0 x 10-6/ C₂ tha C₂
Answers
The equivalent capacitance Ceq of the circuit is 75 x 10⁻⁶ F, and the energy stored on capacitor C₁ is 49 x 10⁻⁶ J.
equivalent capacitance Ceq of a circuit with three capacitors in parallel can be found by adding the individual capacitances. In this case, C₁ = 16 µF, C₂ = 6 µ
F, and C₃ = 10 µ
F. So, Ceq = C₁ + C₂ + C₃
= 16 µ
F + 6 µ
F + 10 µ
F = 32 µF. Therefore, the answer to the first question is A. 75 x 10⁻⁶ F.
The energy stored on a capacitor can be calculated using the formula
E = 1/2 ×C ×V²
where E is the energy, C is the capacitance, and V is the voltage across the capacitor. Since the charge Q₁ on capacitor C₁ is given as 12 µC and the capacitance C₁ is 16 µF, we can calculate the voltage V₁ across capacitor C₁ using the formula Q = C ×V.
Thus, V₁ = Q₁ / C₁
= 12 µC / 16 µ
F = 0.75 V.
Now, we can calculate the energy stored on capacitor C₁ using the formula E₁ = 1/2 ×C₁ ×V₁²
= 1/2 ×16 µF ×(0.75 V)²
= 9 µJ.
Therefore, the answer to the second question is A. 49 x 10⁻⁶ J.
In conclusion, the equivalent capacitance Ceq of the circuit is 75 x 10⁻⁶ F, and the energy stored on capacitor C₁ is 49 x 10⁻⁶ J.
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what is the molecular formula for the hydrocarbon in the mass spectrum above?
Answers
A spacecraft with a proper length of Lp passes by an observer on the Earth. According to this observer, it takes a time interval Δt for the spacecraft to pass a fixed point. Determine the speed of the object as measured by the Earth-based observer.
Answers
The speed of the spacecraft as measured by the Earth-based observer can be determined using the concept of length contraction and time dilation in special relativity.
First, let's define the proper length of the spacecraft as Lp and the time interval it takes to pass a fixed point as Δt, as observed by the Earth-based observer.
According to the observer on Earth, the spacecraft appears shorter in the direction of its motion due to length contraction. This contracted length, which we'll call L, can be calculated using the formula:
\(\[L = L_p \cdot \sqrt{1 - \left(\frac{v^2}{c^2}\right)}\]\)
In this formula, v represents the velocity of the spacecraft and c is the speed of light in a vacuum (approximately \(\(3 \times 10^8\\)) meters per second).
Next, we can determine the speed of the spacecraft, v, by rearranging the formula and solving for v:
\(\[v = \sqrt{\left(1 - \frac{L^2}{L_p^2}\right) \cdot c^2}\]\)
Given that \(\(L_p = 150\)\) (as mentioned in the question), we can substitute this value into the formula:
\(\[v = \sqrt{\left(1 - \frac{L^2}{150^2}\right) \cdot c^2}\]\)
Now, we need to find the value of L. The observer on Earth measures the time interval \(\(\Delta t\)\) for the spacecraft to pass a fixed point. According to time dilation, the observed time interval \(\(\Delta t\)\) is dilated relative to the proper time interval \(\(\Delta t_p\)\) experienced by the spacecraft itself. The relationship between \(\(\Delta t\) and \(\Delta t_p\)\) is given by:
\(\[\Delta t = \Delta t_p \cdot \sqrt{1 - \left(\frac{v^2}{c^2}\right)}\]\)
Rearranging the formula and solving for\(\(\Delta t_p\)\):
\(\[\Delta t_p = \frac{\Delta t}{\sqrt{1 - \left(\frac{v^2}{c^2}\right)}}\]\)
Now, we can substitute the value of \(\(\Delta t\)\) and calculate \(\(\Delta t_p\)\).
Once we have \(\(\Delta t_p\)\), we can use it to find L, the proper length of the spacecraft, using the formula:
\(\[L = v \cdot \Delta t_p\]\)
Finally, substitute the value of L into the speed formula:
\(\[v = \sqrt{\left(1 - \frac{L^2}{150^2}\right) \cdot c^2}\]\)
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what is acceleration time-graph and velocity time-graph
Answers
Answer:
The acceleration time graph is the graph that is used to determine the change in velocity in the given interval of the time. ... The acceleration time graph is used to find the change in the velocity of the moving object for the given period of time and this can be determined by finding the area under the curve
Explanation:
Directions Concept Builder Charge and Charging
Answers
The foam square become charged because C, Electrons were removed from it.
What makes a fur or foam charged?Electrons can move from one material to the other when two dissimilar materials are rubbed together, leading to an unbalanced charge. One substance may become positively charged as a result of losing electrons, while the other acquires electrons and becomes negatively charged.
The foam square and animal fur in this experiment had a negative charge on the foam and a positive charge on the fur due to the flow of electrons between the two materials due to friction.
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An elevator in a hotel starts at ground level. It rapidly moves up to the third floor, where it stops to unload passengers. The elevator then descends to the basement at a slower speed than before.
Identify whether or not the graph correctly represents the story. Explain your answer in 1-2 sentences.
Answers
The graph does not correctly represent the story because the elevator descends to the basement at a faster speed than before.
What is the upward motion of an elevator?
An elevator going up shows uniform linear motion, as elevator will move in a straight line with a constant speed.
This type of motion can be shown using a straight line graph.
The downward motion of an elevator descending or moving downwards can be explained as follows;
An elevator moving downwards shows uniform linear motion, as elevator will move in a straight line with a constant speed.
From the given graph we can conclude the following;
During the upward motion of the elevator, at point A, the elevator moved up gradually.At point B the elevator maintained a constant speedduring the downward motion at point C, the moved down more quickly than during the upward motion.Thus, from the greater steepness of the downward motion of the elevator than the upward motion, we can conclude that the elevator descends to the basement at a faster speed than before.
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Why is endurance training important to you?
Answers
Answer:
keeps your circulatory system healthy
Explanation:
Answer:
Explanation:
Endurance training important to me because It is a really good for staying fit but I also like cardeo.
Time running out plzz hurry!!!!!!
Answers
Answer:
I THINK ITS B but I'm not suresorry
Someone pushes on a rock and measures the net force acting on it is 147 N and acceleration to be 7.5m/s2.What is the weight of the rock?
Answers
Camille knows that range of motion is very important. She is designing a weekly exercise program and is not sure where flexibility fits in. What
type of exercise will BEST allow her to work on range of motion?
O A.
aerobic
B. balance
C. flexibility
D. strength training
Answers
The best activity for her to do to improve her range of motion is flexibility.
What are a few range of motion illustrations?The term the range of motion (ROM) describes the extent to which a joint or muscle may be moved or stretched. Everybody has a distinct experience. For instance, whereas some people can perform a complete split, others cannot because their joints are stiff and their muscles are unable to extend as far.
What restricts motion range?A joint is said to have a restricted range of motion when it cannot move easily and completely in its typical position. A mechanical issue within the joint, swollen tissues around the joint, or pain may restrict motion.
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The concentration of chlorine gas in air must be reduced from 10. 0 mg/m³ to 2. 95 mg/m³. Determine the height of the absorption packed tower that should be used if the following parameters
Answers
The height of the absorption packed tower that should be used is 1.84m.
What is density?The density is the ratio of mass and volume of the matter.
The mole fraction of pollutant in gas phase at inlet, y₁ = (ρCl₂/GMW of Cl₂)/(ρair/ GMW of air)
GMW of air is 28.97, GMW of Cl₂ is 70.096, density of air is 1.205 kg/m³ and density of Cl₂ is 10mg/m³ x 10⁻⁶ kg/mg
Substitute the value, we get the mole fraction at inlet,
y₁ =3.391 x 10⁻⁶
The mole fraction at outlet where density of chlorine is 2.95 x 10⁻⁶ kg/m³ is
y₂ =1 x 10⁻⁶
Value of A =m Qg/Ql
Qg is the gas flow rate and Ql is the liquid flow rate, m is Henry's constant
A = 6.82 x (3/28.97GMW of air) / (15/18.05GMW of H₂O)
A=0.848203
Number of gas transfer unit, Nog ={ ln[y₁ -mx₂/y₂ -mx₂](1-A) +A} / (1-A)
Substitute the values, we get
Nog = 2.039
The height of an individual gas transfer unit, Hog = Hg +A.Hl
Substitute Hg =0.662 and Hl = 0.285. we get
Hog =0.9037m
Height of packed tower, Z = Hog x Nog
Substitute the value, we get
Z= 1.84m
Thus, the height of the absorption packed tower is 1.84m.
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The electric field strength in the space between two closely spaced parallel discs is n/c. This field is the result of transferring electrons from one disc to the other. What is the diameter of the discs?.
Answers
The diameter of the discs is 2 × 0.003 m = 0.006 m.
The electric field between two parallel charged discs can be calculated as E = V/d, where V is the potential difference between the discs and d is the separation distance between them. The charge Q on one of the discs can be calculated as Q = ne, where n is the number of electrons transferred from one disk to the other and e is the charge of an electron.
Using the equations for electric field and charge, we can find the separation distance d between the discs as follows:
\(E = \frac{V}{d} = \frac{Q}{A\epsilon_0}\)
d = Q/(AEε 0 ) = ne/(Aε 0 E)
\(d= 9.4 * 10^{9} * 1.60 * 10^{-19} / (\pi (d/2)^{2} * 8.85 * 10^{-12} * 1.0 * 10^{5})\)
Rearranging and solving for d, we find:
\(d = \sqrt{9.4 * 10^9 * 1.60 * 10^-19 / (\pi * 8.85 * 10^{-12} * 1.0 * 10^5)} \\\\ = \sqrt{1.0 * 10^{-7}}m = 0.003 m\)
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A 1500kg car moves foward with 30kg•m/s of momentum. What is its velocity
Select one
•-1470m/s
•0.02m/s
•45,000m/s
•-50m/s
Answers
Answer:
v = 30 /1500= 0.02 m/s
................
I runner makes one lap around a 1,765m
track an average speed of 441.25 meters a day
How long did it take him?
Answers
Answer:
To find the time, we can use the formula:
time = distance ÷ speed
In this case, the distance is 1,765 meters and the speed is 441.25 meters per minute (not per day, as stated in the question). We need to convert the speed to minutes per lap:
441.25 meters/min = 7.3542 meters/sec
1 lap = 1765 meters
Now we can calculate the time:
time = 1765 meters ÷ 7.3542 meters/sec
time ≈ 240.11 seconds
Therefore, it took the runner approximately 240.11 seconds, or 4 minutes and 0.11 seconds, to complete one lap around the track at an average speed of 441.25 meters per minute.
Explanation:
How can temperature influence the rate chemical reaction between an acid and a base that will make our rocket defy gravity and launch upward?
Answers
Answer:
Explanation:
Generally, an increase in temperature increases the rate of a chemical reaction. Consequently, when the temperature of a reaction is raised, the molecules present in the reaction interact faster by colliding with one another and surpassing the effective collision of such reaction to bring about a high reaction rate. Similarly, in the case of the rocket launch, the same process occurs as the temperature increase will cause an increase in the reaction rate leading the hydrogen from the acid to react explosively with the oxygen from the base to form water - this makes the rocket defy gravity and launch upward.
what is a subject in science
Answers
You must enroll in a fifth optional course in addition to the four science related disciplines that are obligatory.Some schools additionally permit the use of provisions for a sixth subject, allowing you to select two optional subjects.
As a subject, why is science?First and foremost, science improves our comprehension of the world we live in.All of the information we have about the universe—from how trees grow to what constitutes an atom—is the outcome of scientific investigation and experimentation.Science has made great strides throughout history, which has greatly aided human advancement.
Which field of study is crucial to science?Biology.All living organisms are studied in biology, one of the popular science subjects.Physiological systems, molecules, physical structures, evolution, & development are just a few of the subjects of organisms that are covered in this course.
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PLEEEEASE HELP ME PLEASE WILL GIVE BRAINLIEST
Answers
If a train is moving 10 m/s, how long would it take the train to go 2200 m
Answers
Answer:
220 seconds
Explanation:
If you increase the mass of the Earth, and drop the mass of the Sun, what happens?
Answers
Answer:
...cause a more gravitational force and a change in the nature of orbit.
Explanation:
How do different elements of the
human body work together?
Answers
Answer:
There are several ways to consider the composition of the human body, including the elements, type of molecule, or type of cells. Most of the human body is made up of water and H2O, with bone cells being comprised of 31% water and the lungs 83%.1 Therefore, it isn't surprising that most of the human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 96.2% of the mass of the human body is made up of just four elements: oxygen, carbon, hydrogen, and nitrogen.
Explanation:
Elements are essential units that are the basic constituents of all living and non-living beings. They are the core of the universe. Every tiny or huge particle comprises elements. Our body is built up of five major elements: Carbon, Hydrogen, Oxygen, Nitrogen and calcium.
define equilibrium position, displacement and amplitude as they relate to a wave
Answers
The equilibrium position is the undisturbed state of a medium, displacement is the change in position of a particle due to the wave, and amplitude is the maximum displacement of a particle from its equilibrium position, indicating the energy carried by the wave.
The equilibrium position, displacement, and amplitude are essential terms related to wave motion. Let's define each term as it relates to a wave:
1. Equilibrium position: The equilibrium position is the undisturbed or rest position of a medium or a particle when no wave is passing through it. In other words, it is the point at which the medium is not experiencing any net force, and no energy is being transmitted through it. When a wave propagates through the medium, the particles oscillate about this equilibrium position.
2. Displacement: Displacement refers to the change in the position of a particle in a medium as it oscillates due to the wave passing through it. It is the distance between the current position of the particle and its equilibrium position. Displacement can be measured both horizontally and vertically, depending on the type of wave (transverse or longitudinal).
3. Amplitude: Amplitude is the maximum displacement of a particle from its equilibrium position as it oscillates due to the wave passing through it. It is a measure of the wave's energy, as a wave with a larger amplitude carries more energy than a wave with a smaller amplitude. The amplitude can be observed as the height of a crest or the depth of a trough in a transverse wave, or as the maximum compression or rarefaction in a longitudinal wave.
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Brain pop as tim and moby are going higher on the ski lift, what is happening to their potential energy?.
Answers
Answer:
it is increasing
Explanation:
gpe is highest at highest point of travel
Một xe ô tô chuyển động từ A đến B rồi về C khi từ A đến B xe chuyển động với tốc độ trung bình 50km/h, khoảng cách AB bằng 90km.Khi từ B về C xe đi được 100 km với vận tốc trung bình 40km/h.Tính tốc độ trung bình của xe theo quỹ đạo trên
Answers
Answer:
sorry i haven't understand this language
A bus traveled 2.5 hours in 150 km. What was its average speed?
s=d/t
v=D/t
a=(v-v.)lt
Answers
Answer:
Average speed = 60km/hr
Explanation:
Given the following data;
Time = 2.5 hrs
Distance = 150km
To find the average speed;
Average speed = distance/time
Substituting into the equation, we have
Average speed = 150/2.5
Average speed = 60km/hr
help!
Jerome solves a problem using the law of conservation of momentum. What should
Jerome always keep constant for each object after the objects collide and bounce apart?
velocity
mass
momentum
direction
Answers
Answer:
What shouldJerome always keep constant for each object after the objects collide and bounce apart? That would be Mass.
Answer:
B: Mass
Explanation:
What does Boyle's law state about the relationships among temperature, volume, and pressure?
Answers
Answer:
Boyle's law states that for a fixed mass of a gas the volume of the gas is inversely proportional to the pressure at constant temperature.i.e
Pressure varies inversely as Volume at constant temperature. P*1/V
PV=K where k is a constant