Answers
When a massless item is fastened to an ideal spring with a force constant of 130 n/m, it is discovered that it vibrates at a frequency of 7.25 hz. The motion lasts 0.138 seconds.
What does a spring's force constant mean?In accordance with Hooke's law, the force necessary to compress or enlarge a spring is directionally related to or proportionate to the length it is stretched to. K is used to indicate the force constant.
What exactly is a vibration's frequency?The rate of vibrations and oscillations is called frequency, and it is expressed in hertz (Hz) units. To distinguish and ascertain vibrational patterns, frequencies are used. Therefore, a faster-vibrating atom would be seen as having a greater frequency than a slower-vibrating one.
Briefing:T= 1/f = 1/7.25 Hz = 0.138s
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The given question is incomplete. The complete question is:
When an object of unknown mass is attached to an ideal spring with force constant 130 n/m, it is found to vibrate with a frequency of 7.25 hz. What is the period of the motion?
Related Questions
An eagle is flying horizontally at a speed of 2.8 m/s when the fish in her talons wiggles loose & falls into the lake 4.8 m below.
Calculate the magnitude of the velocity of the fish relative to the water when it hits the water in m/s.
Calculate the angle, in degrees by which the fish's velocity is directed below the horizontal when the fish hits the water
Answers
We can use the equations of kinematics to solve this problem. The initial velocity of the fish relative to the eagle is the same as the eagle's velocity, which is 2.8 m/s. The final velocity of the fish just before it hits the water .
How to use the equations of kinematics?v_f^2 = v_i^2 + 2gh
where v_f is the final velocity, v_i is the initial velocity, g is the acceleration due to gravity (9.8 m/s^2), and h is the distance the fish falls (4.8 m). Plugging in the values, we get:v_f^2 = (2.8 m/s)^2 + 2(9.8 m/s^2)(4.8 m) ≈ 83.2 m^2/s^2
Taking the square root of both sides, we get:
v_f ≈ 9.1 m/s
Therefore, the magnitude of the velocity of the fish relative to the water when it hits the water is approximately 9.1 m/s.The angle at which the fish hits the water can be found using trigonometry. We can find the horizontal component of the velocity (v_x) using the equation:v_x = v_i = 2.8 m/s
We can find the vertical component of the velocity (v_y) using the equation:
v_f^2 = v_x^2 + v_y^2
Substituting the values we have found, we get:
(9.1 m/s)^2 = (2.8 m/s)^2 + v_y^2
Solving for v_y, we get:
v_y ≈ 8.4 m/s
The angle below the horizontal can be found using the equation:θ= tan^(-1)(v_y/v_x)
Substituting the values we have found, we get:
θ = tan^(-1)(8.4 m/s / 2.8 m/s) ≈ 72.6°
Therefore, the angle at which the fish's velocity is directed below the horizontal when the fish hits the water is approximately 72.6 degrees.
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6. A 286 kg gold nugget is attached to the ceiling by a spring with a constant of 9500 N/m and
released from a height of 1.70 m above the floor. If the spring stretches 59.0 cm, what is the elastic
potential energy associated with the spring-nugget system?
Answers
4764 joule is potential energy associated with the spring-nugget system
Potential energy ,P =mgh
mass= 286 kg
g=9.8 m/s^2
h= 1.70 m
P =mgh
P=×286 kg×9.8×1.70
P=4764 joule
Potential energy is a form of stored energy that is dependent on the relationship between different system components. When a spring is squeezed or extended, its potential energy increases. If a steel ball is lifted above the ground as opposed to falling to the ground, it has higher potential energy. It is capable of performing more work when raised. Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has greater potential energy as they get further apart.
Potential energy develops in systems having components whose configurations, or relative positions, determine the amount of the forces they apply to one another.
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The drawing shows four situations in which two very long wires are carrying the samecurrent, although the direction of the currents may be different. The point P in the drawings is equidistant from each wire. Which one (or more) of these situations gives rise to a zero net magnetic field at P?
Answers
Situation (a) results in a zero net magnetic field at point P. Option 1 is correct.
In situation (a), the two wires are carrying currents in opposite directions. At point P, the magnetic field due to one wire will be in the opposite direction of the magnetic field due to the other wire. Since the two fields are equal in magnitude and opposite in direction, they cancel each other out, resulting in a net magnetic field of zero at point P.
In situations (b), (c), and (d), the currents are either in the same direction or the wires are at different distances from point P. In these situations, the magnetic fields due to the wires do not cancel each other out at point P, resulting in a nonzero net magnetic field. Therefore, only situation (a) gives rise to a zero net magnetic field at point P. Option 1 is correct.
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A 40.0 kg block of lead is heated from -25°C to 200°C.
How much heat is absorbed by the lead block?
A. 2,354,000 J
B. 1,170,000 J
C. 56,891 J
D. 10,650 J
Answers
Answer:
B. 1,170,000 J
Explanation:
Given;
mass of lead block, m = 40 kg
initial temperature, t₁ = -25 ⁰C
final temperature, t₂ = 200 ⁰C
The heat absorbed the lead block is calculated as;
H = mcΔt
where;
c is the specific heat capacity of lead = 130 J/kg⁰C
H = 40 x 130 x (200 - (-25))
H = 40 x 130 x (200 + 25)
H = 40 x 130 x 225
H = 1,170,000 J
Therefore, the heat absorbed the lead block is 1,170,000 J
A scientist asks, "Does a skateboard move faster on sand or gravel?" Which
experiment could answer this question?
A. Weigh 1 gallon of sand, then roll a skateboard on that sand.
B. Roll a skateboard on sand, then roll it on gravel.
C. Push a skateboard down a gravel hill, then push the skateboard on the
road.
O A
OB
O C
HINT
SUBMIT
Answers
Roll a skateboard on sand, then roll it on gravel. - this experiment could answer this question. Hence, option (B) is correct.
What is experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before. Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The purpose and scope of experiments vary widely, but they all rely on a repeatable process and a logical examination of the outcomes. Natural experimental experiments are also a thing.
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question why if you keep dieing in zombies on cold war u think im gunna rev you. i just got the key and the d.i.e remote and am geting the wonder wepon. but soon as that door explode you so quick to grab it you die. played me like a fool. why the heck you keep tryna exfil on round 15 BOI IF YOU DONT WQBFUFHJEWFHFNQC! packapunched knife to tier 1 head aS BOI!!!
Answers
Answer:
??????? umm what r u saying??? kinda confusing..............what does question why if you keep dieing in zombies on cold war u think im gunna rev you. i just got the key and the d.i.e remote and am geting the wonder wepon. but soon as that door explode you so quick to grab it you die. played me like a fool. why the heck you keep tryna exfil on round 15 BOI IF YOU DONT WQBFUFHJEWFHFNQC! packapunched knife to tier 1 head aS BOI!!! mean????????
very very very confusing
Explanation:
plz mark brainlyist :()
Conveyor belts are often used to move packages around warehouses. The conveyor shown below moves packages at a steady 4.0 m/s. A 500 N employee decides to catch a ride by sitting on a 1,000 N box for a 50 m trip as shown below:
What is the work done by the employee on the box?
Answers
Answer:
0 j
Explanation:
The work done by the employee on the box at the given zero displacement is 0 J.
The given parameters;
Constant velocity of the conveyor, v = 4 m/sWeight of the employee, W = 500 NWeight of the box, W = 1,000 NDistance of the trip, h = 50 mThe work done by the employee on the box is calculated as follows;
W = Fd
where;
F is the applied force on the box by employee = weight of the employeed is the distance through which the box is movedSince the employee sits on the box without moving it, the distance moved by the box = 0
W = 500 x 0
W = 0 J
Thus, the work done by the employee on the box is 0 J.
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On a calm day, a windmill blade 6 m long turns 0.20 rad in 1s. What is the linear velocity of the tip of the blade?
Answers
We are given the following information
Length of the windmill blade = 6 m
Angular velocity of the windmill = 0.20 rad/s
We are asked to find the linear velocity of the tip of the blade.
The linear velocity of the tip of the blade is given by
\(v=\omega\cdot L\)Where ω is the angular velocity of the windmill and L is the length of the blade.
Substituting the given values into the above formula, we get
\(\begin{gathered} v=0.20\cdot6 \\ v=1.2\; \; \frac{m}{s} \end{gathered}\)Therefore, the linear velocity of the tip of the blade is 1.2 m/s
When a skater pulls her arms in, it
reduces her moment of inertia from
2.12 kg m² to 0.699 kg-m². If she was
initially spinning 3.25 rad/s, what is
her final angular velocity?
Answers
The skater's final angular velocity is approximately 9.86 rad/s.
The skater's final angular velocity can be calculated using the principle of conservation of angular momentum. The equation for angular momentum is given by:
L = Iω
where L is the angular momentum, I is the moment of inertia, and ω is the angular velocity.
Initially, the skater has an angular momentum of:
L_initial = I_initial * ω_initial
Substituting the given values:
L_initial = 2.12 kg m² * 3.25 rad/s
The skater's final angular momentum remains the same, as angular momentum is conserved:
L_final = L_initial
The final moment of inertia is given as 0.699 kg m². Therefore, the final angular velocity can be calculated as:
L_final = I_final * ω_final
0.699 kg m² * ω_final = 2.12 kg m² * 3.25 rad/s
Solving for ω_final:
ω_final = (2.12 kg m² * 3.25 rad/s) / 0.699 kg m²
Hence, the skater's final angular velocity is approximately 9.86 rad/s.
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Which is the best description of biodiversity?
1. All animals in an ecosystem
2. The variety of the type of life within the biosphere
3. The study of life
3. The variety of plants on Earth
Answers
Answer:2
Explanation:
The second law of thermodynamics leads us to conclude what?
a. the total energy of the universe is constant
b. disorder in the universe is increasing with the passage of time
c. it is theoretically impossible to convert work into heat with 100% efficiency
d. the total energy in the universe is increasing with time
e. the total energy in the universe is decreasing with time
Answers
Answer:
b. disorder in the universe is increasing with the passage of time
Explanation:
The second law of thermodynamics states that the total entropy of an isolated system increases over time . The entropy of a system measures the randomness or disorder in the system . So the we can state, in terms of disorder , the second law of thermodynamics as follows .
The disorder in the universe is increasing with the passage of time .
The second law of thermodynamics leads us to conclude that disorder in the universe is increasing with the passage of time. So, here, option b is the correct option.
Entropy is a measure of the disorder or randomness in a system. The second law of thermodynamics states that in any spontaneous process, the total entropy of an isolated system (including both the system and its surroundings) tends to increase or, at best, remain constant. This means that over time, natural processes tend to lead to an increase in the overall disorder or randomness of the system. It's important to note that while the increase in entropy is a statistical tendency on a macroscopic scale, there can still be localized decreases in entropy within a system.
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5. During a heat transfer investigation, students filled two cups with water. One cup contains 100mL of cold water while the other contains 100 mL of hot water.
A metal heat wire is placed inside the water of both cups and thermometers are attached to each cup. Which of the following BEST explains how the heat is transferred? Cold Water Hot Water.
A. This investigation would not result in any heat being transferred.
B. Convection, because the metal wire was heated through convection currents.
C. Radiation, because the metal wire was heated by electromagnetic waves.
D. Conduction, because the metal wire was in direct contact with water in both containers.
Answers
Answer:
D.Conduction, because the metal wire was in direct contact with water in both containers
Conduction, because the metal wire was in direct contact with water in both containers. Option D is correct.
Given that,
Students filled two cups with water. One cup contains 100mL of cold water while the other has 100 mL of hot water. A metal heat wire is placed inside the water of both cups and thermometers are attached to each cup.
It is to be identified, the system contains which type of heat transfer between the cups
Heat transfer is the process, in a thermodynamic system, when an object at a higher temperature is placed with an object at has a lower temperature, after some time the system attains equilibrium because heat flows from higher temperature to lower temperature.
In the given question,
Cups, that are connected through a metal wire, one is hot and the other is cold, Principal of conduction state that when there is a system of connected bodies the heat flows throughout the connected system till the thermal equilibrium attain. Implies heat flow from hot cup to cold cup through the wire through conduction heat transfer.
Thus, Conduction, because the metal wire was in direct contact with water in both containers. Option D is correct.
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Hi please help me on question asap! Silly answers will be reported ....... If answers correct I'll rate you five stars a thanks and maybe even brainliest!
Is this an advantage or a disadvantage?
In a parallel circuit the resistance in each branch is the same as if there was just one light bulb In the whole circuit .
Answers
This is actually an advantage of a parallel circuit. In a parallel circuit, the resistance in each branch is the same as if there was just one light bulb in the whole circuit.
In a parallel circuit, the current has multiple pathways to flow through. Each component, such as a light bulb, is connected across its own branch. The total resistance in a parallel circuit is determined by the sum of the reciprocals of the individual resistances in each branch.
Having the same resistance in each branch ensures that the current is distributed equally among the branches. This means that each component receives the same amount of current as if it were the only component in the circuit. As a result, the brightness of the light bulbs in a parallel circuit will be the same.
This characteristic of parallel circuits is advantageous because it allows for independent operation of each component. If one light bulb were to burn out or be removed, the other bulbs would continue to operate unaffected. Additionally, parallel circuits offer lower overall resistance compared to a series circuit, enabling the flow of more current.
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A 11.8-kg monkey is hanging by one arm from a branch and swinging on a vertical circle. As an approximation, assume a radial distance of 99.8 cm is between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest point on the circle, it has a speed of 3.22 m/s. Find:
a. the magnitude of the centripetal force acting on the monkey
b. the magnitude of the tension in the monkey's arm.
Answers
Answer:
Explanation:
Fc = mv²/R = 11.8(3.22)²/0.998 = 123 N
T = m(g + v²/R) = 11.8( 9.81 + 3.22²/0.998) = 238 N
8. Molecular gastronomy was created by two scientists from Oxford University.
True or false
Answers
True,
molecular gastronomy was created by two scientists from Oxford University. Molecular gastronomy is a sub-discipline of food science that investigates the physical and chemical transformations of ingredients during cooking. It was first established by physicist Nicholas Kurti and chemist Hervé This, both from Oxford University. The term "molecular gastronomy" was coined in 1988 during a workshop on the science of cooking, which aimed to bridge the gap between scientific research and culinary arts.
Molecular gastronomy explores various aspects of food, such as flavor, texture, and presentation, and combines scientific knowledge with culinary techniques. This innovative approach to cooking has led to the creation of many unique and modern dishes, often featuring unexpected combinations of ingredients and visually appealing presentations.
The objective of molecular gastronomy is not only to create innovative dishes but also to understand and improve traditional cooking methods. This has led to advancements in food technology, as well as a deeper understanding of the science behind cooking processes. As a result, molecular gastronomy has become a popular and influential trend in the culinary world, inspiring chefs and home cooks alike to experiment with new techniques and ingredients.
In summary, molecular gastronomy was created by two scientists from Oxford University, Nicholas Kurti and Hervé This. Their groundbreaking work has had a significant impact on the culinary world and has led to many exciting innovations in food preparation and presentation.
you choose a bowling ball with a smaller mass because you can roll it down the lane
which law is this?
(newtons laws 1,2 and 3)
Answers
Answer:
based on my research i found that it was newtons law # 1
Explanation:
Answer: newton's 2nd law revolves around mass {credits to Britannica} A lesson proving immovable objects and unstoppable forces are one and the same. Newton's second law is a quantitative description of the changes that a force can produce on the motion of a body.
A Concorde airplane could fly at an average speed of 694 m/s. Calculate how long it would have
taken the Concorde to fly around the world, which is approximately 4.00 x 10^7
Answers
Answer:
I actually don't know bc I only need point s so yeah
Explanation:
the explanaition is nothing bc I have nothing
QUESTION 16. Suppose you have a garden hose of diameter 2 cm and you use it to fill a 25 liters bucket/container. Suppose it takes you 1 minute to do that. Your answer (a) Calculate the speed at which the water enters the bucket. (2 marks) *
Answers
Answer:
0.4166666667 m/s
Explanation:
where would you expect to find vesicles of neurotransmitters
A. Synaptic gap
B. postsynaptic dendrites
C. Channels in the postsynaptic
D. Presynaptic terminal button
Answers
Answer:
D. Presynaptic terminal button
explanation:
Terminal Buttons are small knobs at the end of an axon that release chemicals called neurotransmitters. The terminal buttons form the Presynaptic Neuron
hope this helped!
If we find v=Al, where l is a length and v is a speed, what are the SI units for A?
A) s^-1
B) m^2/s
C) m/s^2
D) s
E) kg • m/s
Answers
Answer:
I think the SI unit of A is m^2/s
Answer:
A) S^-1
Explanation:
Hope I helped
If there is any thing feel free to ask
You are welcome in advance
What is the power (P) of an electric circuit with a current (I) of 2.5 A and a voltage (V) of 120 V? The formula for power is P = IV
Answers
The electric power of an electric circuit with a current of 2.5 A and voltage of 120 V is 300 watts.
What is Electric power?Electric power is the rate at which work has to be done or the energy is transformed into an electrical circuit to work. Power is a measure of how much energy is used in a span of time. The SI unit of power is watt (W). Power can be defined as the product of voltage and electric current.
P = VI
where, P is the power,
V is the voltage or potential difference,
I is the electric current
P = VI
P = 120 × 2.5
P = 300 watts
Therefore, the electric power in the circuit will be 300 watts.
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If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP
Answers
The volume of the gas at standard temperature and pressure (STP) is 1,239.2 L.
The given parameters;
volume of the gas, V₁ = 9.5 Lpressure of the gas, P₁ = 140 atmtemperature of the gas, T₁ = 20 ⁰C = 273 + 20 = 293 Kpressure of gas at standard condition, P = 1 atmtemperature of gas at standard condition, T = 0⁰C = 273 KThe volume of the gas at standard condition is calculated by applying general gas law as shown below;
\(\frac{PV}{T} = \frac{P_1V_1}{T_1} \\\\V = \frac{P_1V_1T}{T_1P} \\\\V = \frac{140 \times 9.5 \times 273}{293 \times 1} \\\\V = 1,239.2 \ L\)
Thus, the volume of the gas at standard temperature and pressure (STP) is 1,239.2 L.
"Your question is not complete, it seems be missing the following information;"
A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 140 atm at 20∘C.
If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP.
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if you can help me out and tell me where does 1-14 go the words are on top thanks here is a template to use that will help the both of us THANKS GUYS :)
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The movement of lithospheric plates refers to the shifting and collision of large pieces of Earth's outermost layer. These plates are composed of both continental and oceanic crust, and their movement is driven by convection currents in the underlying mantle.
What is the explanation for the above response?
The movement of lithospheric plates refers to the shifting and collision of large pieces of Earth's outermost layer. These plates are composed of both continental and oceanic crust, and their movement is driven by convection currents in the underlying mantle.
At mid-ocean ridges, partially molten rock rises and solidifies, creating new oceanic crust and pushing lithospheric plates apart. As plates move away from the ridges, they cool and become denser, eventually sinking back into the mantle at subduction zones marked by deep ocean trenches. In these areas, the lithospheric plate carrying the oceanic crust is forced beneath the plate carrying the continental crust, generating molten rock that rises to the surface and forms mountain ranges and volcanic arcs.
As older oceanic crust subducts, it may partially melt and create magma that rises to the surface, forming volcanic islands and even new continental crust. Moreover, the movement of lithospheric plates can create rift valleys as the plates pull apart and create gaps in the Earth's surface.
Overall, the movement of lithospheric plates can be thought of as a series of conveyor belts, with new ocean floor continuously forming at mid-ocean ridges while older ocean floor is subducted and recycled back into the mantle. This process shapes the Earth's surface and plays a critical role in geologic activity, including the formation of mountains, earthquakes, and volcanic eruptions.
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Which types of light are not absorbed by the genetic material
Answers
Answer:
I know only one type of light that is absorbed by genetic materail and that is UV light
Explanation:
A proton moves at a speed of 0.12 x 10^7 m/s
at right angles to a magnetic field with a
magnitude of 0.58 T.
Find the magnitude of the acceleration of
the proton. The elemental charge is 1.60 x
10^-19 C.
Answer in units of m/s?.
Answers
Answer:
13/23 ydfffgggggggffttf
How do tsunamis cause flooding? Please answer in 4-5 sentences.
PLEASE HELP! GIVING BRAINLIEST!
Answers
Answer: YES
Explanation: The main difference between flood and tsunami is that the flood is overflow of water that submerges land and tsunami is a series of water waves caused by the displacement by large volume of a volume of water
Answer:
WEEEEEEEEEEEEEEEEEEEEEEEEE
Explanation:
Which step of the PRICES method is represented by the letter S?
A.
Raise the injured area above the heart.
B.
Stop the activity until the injury is evaluated.
C.
Wrap the injured site to decrease swelling.
D.
Apply a brace or a splint to the area.
Answers
A cylinder of gas has a frictionless but tightly sealed piston of mass M. A small flame heats the cylinder, causing the piston to slowly move upward. For the gas inside the cylinder, what kind of process is this?
Answers
Answer:
isobaric
Explanation:
According to the attached figure, the process would be isobaric as the gas would be expanded at the time when it maintains the constant pressure
The ideal gas law derives
PV = nRT
As the flame is there at the bottom side so atoms or molecules of gas would get heat up slowly also their temperature would be increased. Thus in the case when piston would not be permitted to move so the pressure would rise having maintaining the constant volume and after this the process could be isochronic but in the given case, the piston would be permitted to move slowly upward so that there is a rise in the volume. However, the gas particles would be adjust themselves in order to maintain constant pressure so the given process represent isobaric
HELP PLS ASAP. ??????
Answers
Answer:
I believe it would be 132
Explanation: when you take a your pulse times 6 because it breaks down to 6 per second and if in 10 seconds you have 22 beats 22x6 is 132.
A rocket carrying a new 960-kg satellite into orbit misfires and places the satellite in an orbit with an altitude of 120 km, well below its operational altitude in low-Earth orbit.
(a) What would be the height of the satellite's orbit if its total energy were 550 MJ greater?
(b) What would be the difference in the system's kinetic energy? (Include the sign of the value in your answer.)
(c) What would be the difference in the system's potential energy? (Include the sign of the value in your answer.)
These answers are all in MJ.
Answers
Answer: I believe the answer is B
Explanation: