Some students have determined the gravitational mass of an object and want to compare it to the object's inertial mass. Procedures that would allow them to accomplish this include which of the following? Select two answers.
A. Hanging the object vertically from a spring scale and recording the scale reading
B. Placing the object on one side of a double pan balance, adding objects of known mass to the other side until the masses are balanced, and recording the amount of mass added
C. Attaching the object to a spring of known spring constant, allowing it to oscillate horizontally on a nearly frictionless surface, and measuring the period
D. Attaching the object to a force sensor, using the sensor to pull the object across a nearly frictionless horizontal surface, and measuring the acceleration
Answers
The procedures that would allow students to compare the gravitational mass and inertial mass of an object include hanging the object vertically from a spring scale and recording the scale reading and placing the object on one side of a double pan balance, adding objects of known mass to the other side until the masses are balanced, and recording the amount of mass added.
By hanging the object vertically from a spring scale, the students can measure the gravitational force acting on the object. The reading on the scale would provide an indication of the object's gravitational mass. This approach takes advantage of the fact that the weight of an object is proportional to its gravitational mass. Using a double pan balance allows the students to compare the object's gravitational mass to known masses. By adding objects of known mass to the other side of the balance until equilibrium is reached, the students can determine the inertial mass of the object. The principle of equilibrium states that the gravitational force acting on one side of the balance must be equal to the gravitational force acting on the other side, providing a means to compare the object's inertial mass to known masses. Both procedures offer distinct ways to determine the gravitational mass and compare it to the inertial mass of the object, allowing students to explore and understand the fundamental properties of mass and its interactions with gravitational forces.
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Related Questions
(7%) Problem 7: A mother sees that her child's contact lens prescription is 1.25 D u» s, what is the child's near point, in centimeters? Assume the near point for normal human vision is 25.0 cm.
Answers
The child's near point is 44.44 cm. A contact lens is a thin piece of plastic placed directly on the surface of the eye.
The prescription is measured in diopters and is determined by the patient's visual acuity as well as the shape of the eye. The near point is the closest point at which an object can be seen clearly. This point varies depending on the individual and can be affected by age, lighting conditions, and other factors.
In this problem, the child's contact lens prescription is given as 1.25 D u>s. The near point for normal human vision is 25.0 cm.
To find the child's near point, we can use the following formula:
Near point (in cm) = 100 / (prescription in diopters + 1)
Substituting the given values: Near point (in cm) = 100 / (1.25 + 1)
Near point (in cm) = 100 / 2.25
Near point (in cm) = 44.44 cm
Therefore, the child's near point is 44.44 cm.
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when a human cannon ball shoots in the air for 9 seconds, she travels 37 meters before ut lands. Caculate the speed
Answers
Answer:
9.1 mph
Explanation:
when the capacitor fully charges and saturates in voltage, do you expect the voltage across the capacitor to be the same as the battery voltage, less than the battery voltage, or greater than the battery voltage?
Answers
When the capacitor is fully charged, the potential difference across the capacitor is equal to the voltage source.
Capacitor is a device which stores charges. Charges come from the current passing through it.
The charges stored in a capacitor is called capacitance.
Its unit is farad (F)
No current flows in the circuit when a capacitor is fully charged because the potential difference across the capacitor is equal to the voltage source.
Here, the charging current will be zero such that capacitor voltage equal to source voltage.
When the capacitor is fully charged, the potential difference across the capacitor is equal to the voltage source.
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A ball is thrown vertically upward from the edge of a bridge 24.0 m high with an initial speed of 13.0 m/s. The ball falls all the way down and strikes the water below. Determine the time it takes the ball to strike the water.
Answers
The time it takes for the ball to strike the water is approximately 3.9 seconds.
To solve this problem, we can use the equation of motion for vertical displacement, which is given by:
y = y0 + v0t + (1/2)at²
where y is the final vertical displacement, y0 is the initial vertical displacement, v0 is the initial vertical velocity, a is the acceleration due to gravity, and t is the time.
In this case, we have:
y = 0 (since the ball strikes the water)y0 = 24.0 m (the height of the bridge)v0 = 13.0 m/s (the initial speed of the ball)a = -9.8 m/s^2 (the acceleration due to gravity)Plugging these values into the equation and rearranging for t, we get:
0 = 24.0 + 13.0t + (1/2)(-9.8)t²
0 = -4.9t² + 13.0t + 24.0
Using the quadratic formula, we can solve for t:
t = (-13.0 ± √(13.0² - 4(-4.9)(24.0)))/(2(-4.9))
t = (-13.0 ± √(169 + 470.4))/(-9.8)
t = (-13.0 ± √639.4)/(-9.8)
t = (-13.0 ± 25.3)/(-9.8)
The two possible solutions for t are:
t = (-13.0 + 25.3)/(-9.8) ≈ -1.3 s (this solution is not physically possible)
t = (-13.0 - 25.3)/(-9.8) ≈ 3.9 s (this is the correct solution)
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I’m confuse like which two types of fields vibrate in light wave
Answers
Electromagnetic waves consists of alternate electrical and magnetic fields.
Light is a electromagnetic wave. Hence in light wave, electrical and magnetic fields vibrate.
Two parallel wires, 4 cm apart, carry currents of 2 a and 4a respectively in opposite directions. what is the force per unit length of one wire on the other?
Answers
The force per unit length of one wire on the other can be determined using the formula for the magnetic field created by a current-carrying wire.
The force per unit length, also known as the magnetic force, between two parallel wires carrying currents in opposite directions is given by the equation
F = μ₀ * I₁ * I₂ * L / (2 * π * d),
where F is the force per unit length, μ₀ is the permeability of free space (4π * \(10^{-7}\) T m/A), I₁ and I₂ are the currents in the wires, L is the length of the wires, and d is the distance between the wires.
In this case, the currents in the wires are 2 A and 4 A, the length of the wires can be any value since it does not affect the force per unit length, and the distance between the wires is 4 cm or 0.04 m.
Plugging in these values into the formula, we have
F = (4π * 10^-7 T m/A) * (2 A) * (4 A) * L / (2 * π * 0.04 m).
Simplifying the equation, we find that F = 2 * \(10^{-6}\) L N/m, where L is the length of the wires in meters.
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Question 2 (4 points) The cause of heat cramps is the loss of sodium and potassium through heavy sweating? True False
Answers
Answer:
True
Explanation:
Lose of water content in our body through sweating and lose of essential salts such as potassium and sodium causes heat cramps...
Thank you
Please I need help finding this answer in this textbook!!!
ASAP
In Racial Formations, race is defined as a socio historical concept, what does that mean
to the authors? Do you agree with this definition why or why not? Explain how race is
socially constructed or strictly biological. Support your response with two paragraphs.
Answers
Race, class, and gender are interconnected identity categories that have an impact on many facets of daily life. The experiences that people have in society are shaped by these groups and their associated influences.
An idea that has been developed and accepted by members of a society is known as a social construct. It portrays the collective wisdom and experiences of a civilization. The way people of a certain culture perceive persons of other races makes the concept of race a social construct.
Because of their physical differences, for example, white people believe that Black people are of a distinct race.
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Imagine you are in a car that’s going 50 mph on the highway. All of the sudden the car comes to a very quick and sudden stop. What happens to your body when the car comes to a stop?
Answers
Answer:
you would fall forward due to inertia of motion..
Here is the Energy and Forces Unit Test answers for Connexus students as of 2/15/2023. Someone gave lots of wrong answers for this on another persons question, so here are the right answers.
1-at least two charged, interacting parts
2-from the electric fields of charged subatomic particles
3-an arrow released from the bow
4-Electrical fields of charged particles interact, bonding those with opposite charges.
5-the interaction of the electric fields of protons and electrons
6-The energy stored in the system increases.
7-Kinetic energy increases because the magnets move in the direction of the field.
8-Iron pieces accelerate toward the magnet, and the energy stored in the system decreases.
9-The energy stored in the field decreases because the magnet moves in the direction of the field.
10-The energy stored increases and then decreases.
11-The wire was not connected to the source.
12-The electromagnet will become more powerful.
`````EXTENDED RESPONSE QUESTIONS`````
(These answers have not been graded. If you choose to use the answers, so not hold it against me if they are wrong. This is just what i put)
13-A particle accelerator is used to move charged particles to a high speed and increase their energy. The accelerator uses the energy provided by an electromagnetic field.
14-When you pull the magnet off the fridge, the potential energy increases because the farther the two charged objects move apart, the more charge they get.
15-One thing is the number of coils. The more coils, and the tighter they are, the stronger the charge. The wire size can also affect it. The shape and size of the core, and the nature of the core are also factors.
Answers
there is no actual energy. And it still has a ways to go before it touches the earth, it contains both potential energy and kinetic energy since it is traveling. The brakes of a car heat up as it comes to
What does physics mean by potential energy?
Potential energy in physics is the energy that an item possesses as a result of its position in relation to other objects, internal tensions, electromotive force, or other elements.
What is the potential associated with it?
The gravitational potential, frequently represented by, which corresponds to the unit mass of energy as a function of position, is the associated potential. When two particles of mass M and m are separated by r, their gravitational potential energy is
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Answer:
Thank You So Much!❣️
A 50.0 kg lead block initially at 15 °C is released from rest at the top of an inclined plane with a 10° angle above the horizontal. The inclined plane is 5.00 m long. The block reaches the bottom of the inclined with a speed of 2.20 m/s. How much work is done the friction force on the block? What is the change of temperature of the block? Assume that work done by the friction force equals by magnitude the amount of heat going into the block. CL = 130 J/kg °C
Answers
Given data:
* The mass of the lead is m = 50 kg.
* The angle of the inclined plane with the horizontal is,
\(\theta=10^{\circ}\)* The length of the inclined plane is L = 5 m.
* The speed of the lead at the bottom of the plane is v = 2.2 m/s.
* The initial temperature of the lead is,
\(T_i=15^{\circ}\text{ C}\)* The specific heat of lead is,
\(c_L=130J/kg^{\circ}C\)Solution:
(a). The kinetic energy of the lead at the bottom of the inclined plane is,
\(\begin{gathered} K=\frac{1}{2}mv^2 \\ K=\frac{1}{2}\times50\times2.2^2 \\ K=121\text{ J} \end{gathered}\)The diagrammatic representation of the given case is,
From the diagram, the initial height of the block is,
\(\begin{gathered} \sin (\theta)=\frac{h}{L} \\ h=L\sin (\theta) \end{gathered}\)Substituting the known values,
\(\begin{gathered} h=5\times\sin (10^{\circ}) \\ h=0.87\text{ m} \end{gathered}\)The potential energy at the top of the inclined plane is,
\(U=\text{mgh}\)where g is the acceleration due to gravity,
Substituting the known values,
\(\begin{gathered} U=50\times9.8\times0.87 \\ U=426.3\text{ J} \end{gathered}\)The lead block is initially at rest at the top of the inclined plane, thus, the kinetic energy at the top of the inclined plane is zero.
The net energy at the top of the inclined plane is,
\(\begin{gathered} E_i=U+K_i \\ E_i=U+0 \\ E_i=426.3\text{ J} \end{gathered}\)The height of the lead block at the bottom of the inclined plane is zero, thus, the potential energy at the bottom of the inclined plane is zero.
The net energy at the bottom of the inclined plane is,
\(\begin{gathered} E_f=U_f+K \\ E_f=0+121 \\ E_f=121\text{ J} \end{gathered}\)Thus, the energy loss due to the friction is,
\(\begin{gathered} E_f-E_i=121-426.3 \\ E=-305.3\text{ J} \end{gathered}\)Here, the negative sign indicates the loss of energy,
The work done by the frictional force is equal to the amount of energy loss during the motion of the lead block down the inclined plane.
Thus, the work done by the friction force on the lead is 305.3 J.
(b). The energy loss takes place in the form of heat.
The amount of heat produced in terms of the mass, temperature, and specific heat is,
\(Q=mc_L(T_f-T_i)\)where Q is the amount of heat produced, T_f is the final temperature and T_i is the initial temperature,
Substituting the known values,
\(\begin{gathered} 305.3=50\times130\times(T_f-15) \\ 305.3=6500T_f-97500 \\ 6500T_f=305.3+97500 \\ 6500T_f=97805.3 \end{gathered}\)By simplifying,
\(\begin{gathered} T_f=\frac{97805.3}{6500} \\ T_f=15.05^{\circ}\text{C} \end{gathered}\)Thus, the final temperature of the lead block is 15.05 degrees celsius.
Which provides a greater mechanical advantage; a single fixed pulley or a two pulley system? Why?
Answers
Given that on the moon g = 1.6 m/s2, and on Earth g = 9.8 m/s2, if a car on the moon weighs 3.8 N, what is its mass on Earth?
Answers
Weight = m • g
On the moon, 3.8N = m • 1.6 m/s^2
m = 3.8 / 1.6
m = 2.38 kg
Anywhere !
Everywhere !
with instability, rising air will be buoyant without an uplifting force. True or False
Answers
False.With instability, rising air will be buoyant due to an uplifting force.
Instability in the atmosphere occurs when the environmental lapse rate (the rate at which temperature decreases with increasing altitude) is greater than the adiabatic lapse rate (the rate at which temperature decreases as air rises). This creates an environment where parcels of air that are warmer than the surrounding air can rise on their own, without the need for additional uplifting forces such as orographic lifting or frontal boundaries. The buoyancy of the rising air is driven by the temperature differences between the parcel and its surroundings. This buoyancy allows the air to continue rising until it reaches a level of stability or encounters other atmospheric conditions that hinder its upward motion.
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Using a lever, a women raised a 600-newton box. She used 200 newtons of effort. How many times was the force multiplied?
Answers
The force get multiplied 3 times. if a women raised a 600-newton box. She used 200 newtons of effort.
Using a lever, a women raised a 600-newton box. She used 200 newtons of effort. the force multiplied to:
Here, The multiplied force = force required for the box / force used for using lever
= 600 / 200
= 3
Hence, the force get multiplied 3 times.
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A mass m is at a height h above the surface of a planet of mass M and radius R.
The gravitational field strength at height h is g. By considering the gravitational force acting on mass m, derive an equation from Newtor's law of gravitation to express g in terms of M, R, h and the gravitational constant G.
Answers
Answer:
Explanation:
Given:
m - mass
h - height
M - mass of the planet
R - planet radius
G - Gravity constant
_________
g - ? Acceleration of free making
Newton's law of universal gravitation:
F = G·m·M / (R +h)
g = F / m
g = G·M / (R +h)
Work, Power, and Energy
A 3 kg ball falls from a height of 45 meters to a height of 32 meters. Calculate the amount of work done by gravity.
When writing your answer, please include the formula you used! Thank you!
Answers
Answer:
383.2
Explanation:
W=m×g(9.8)×(change in height)
=3×9.8× (45-32)
=3×9.8×13
=383.2
An astronaut's training centrifuge has a radius of 4.0m. If it goes round once every 2.5s, calculate the velocity of the end of the centrifuge arm (4.0m from the pivot).
Answers
Answer: 10.048m/s
Explanation:
We know that the radius is r = 4.0m
And for rotating things, the tangential velocity (or the velocity of the end of the centrifuge arm) can be calculated as:
v = r*w
The period is T = 2.5s,
This means that if sin(w*t) describes this situation, we have that:
sin(w*t) = sin(w*(t + T))
and we know that:
sin(w*0) = 0
sin(w*(0 + T)) = Sin(w*T) = 0
this means that w*T = 2*pi
w = 2*pi/T = 2*pi/2.5s = (2*3.14)/2.5 s = 2.512 hz
Then the velocity can be calculated as
v = r*w = 4.0m*2.512hz = 10.048m/s
in one word, how can water in the power plant of a nuclear submarine far exceed 100°c?
Answers
In a nuclear submarine's power plant, water can far exceed 100°C due to a process called pressurized water reactor (PWR).
PWRs are commonly used in nuclear submarines and power plants.
In a PWR system, water acts as both the coolant and moderator for the nuclear reactor. The water is pressurized to a very high pressure, typically around 150 times atmospheric pressure, which prevents it from boiling at its normal boiling point of 100°C. This high pressure allows the water to remain in a liquid state even at temperatures well above its normal boiling point.
By maintaining the water under high pressure, the PWR system can heat the water to temperatures exceeding 100°C without it boiling. The heated water then passes through a heat exchanger, transferring its thermal energy to a separate water loop, which produces steam to drive turbines and generate electricity.
The ability of the water to remain in a liquid state at elevated temperatures due to pressurization allows for efficient heat transfer and energy generation in the power plant of a nuclear submarine.
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a car travels 65 km in 1 hour. what is its average speed in meters per second?
Answers
Answer:
18.1 m/s
Explanation:
65 km = 65 000 m and 1 hour = 3600 sec
65000 / 3600 = 18.1 m/s
An object of mass 10 kg is released from rest above the surface of a planet such that the object’s speed as a function of time is shown by the graph above. The force due to gravity exerted on the object is most nearly
Answers
Answer:
100NExplanation:
Hey there!!!, there are no attached files/graphs to this question, but we can find our way and solve for the gravitational force acting on the mass
Step one:
given data
mass= 10kg
acceleration due to gravity= 9.81m/s^2
Step two:
The expression for the gravitation force is given as
Gravitational force F=mass * acceleration due to gravity
Fg=ma
substituting we have
Fg=10*9.81
Fg=98.1N
The force due to gravity exerted on the object is most nearly 100N
A vector is 253 m long andpoints in a 55.8 degreedirection.Find the y-component of thevector.
Answers
The components of the vector v are given as:
\(\begin{gathered} v_x=v\cos \theta \\ v_y=v\sin \theta \end{gathered}\)where v is the magnitude of the vector and theta is the angle.
In this case we have v=253 and theta=55.8°, plugging this values into the y component we have:
\(\begin{gathered} v_y=253\sin 55.8 \\ v_y=209.25 \end{gathered}\)Therefore the y component is 209.25 meters.
EASY 15 POINTS❗️❗️
Look at the drawing. What would MOST LIKELY cause the rock to break apart?
A) Water freezes in the cracks.
B) Wind blows through the cracks.
C) Heat forces the rock to crack.
D) Earthquakes cause the rock to crack.
Answers
Answer:
(A)
Explanation:
when water freezes it expands
Answer:a
Explanation:I think a is correct bc as you can see water has froze
2. 0.163 m cui2 b. second highest boiling point fill in the blank 3 3. 0.173 m cr(no3)2 c. third highest boiling point fill in the blank 4 4. 0.580 m urea (nonelectrolyte) d. lowest boiling point
Answers
Answers are:
2. 0.163 m CuI2: Second highest boiling point
3. 0.173 m Cr(NO3)2: Third highest boiling point
4. 0.580 m urea (nonelectrolyte): Lowest boiling point
To determine the order of boiling points based on the given solutions, we need to consider the nature of the solute and its effect on boiling point elevation. In general, a higher concentration of solute particles in a solution leads to a higher boiling point compared to a pure solvent.
Using this information, we can rank the solutions in terms of their boiling points:
1. 0.580 m urea (nonelectrolyte) - This solution has the lowest boiling point since urea is a nonelectrolyte, meaning it does not dissociate into ions in solution. Non-electrolytes typically have a negligible effect on boiling point elevation.
2. 0.163 m CuI2 - Copper(I) iodide (CuI2) is an ionic compound. When it dissolves, it dissociates into Cu²⁺ and 2I⁻ ions, resulting in an increased number of solute particles. Therefore, it has the second highest boiling point among the given solutions.
3. 0.173 m Cr(NO3)2 - Chromium(II) nitrate (Cr(NO3)2) is also an ionic compound. It dissociates into Cr²⁺ and 2NO₃⁻ ions in solution, resulting in a higher concentration of solute particles compared to the previous solutions. Thus, it has the third highest boiling point.
2. 0.163 m CuI2: Second highest boiling point
3. 0.173 m Cr(NO3)2: Third highest boiling point
4. 0.580 m urea (nonelectrolyte): Lowest boiling point
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Ernest rutherford was an important early researcher in nuclear physics. In one experiment, he observed that particles with a positive charge deflected when passing through a thin sheet of gold foil. What conclusion did rutherford make in this observation?.
Answers
Gold foil experiment
Ernst Rutherford conducted the Gold Foil Experiment in which α particles (doubly charged Helium Atoms) were bombarded on a thin gold foil. This experiment led to the discovery of the nucleus.
1) Most of the particles passed through undeflected
⇒ this meant that most of an atom is empty space
2) Some Alpha particles were deflected by some small angles
⇒ Since alpha particles are positively charged species , they can only be deflected if there are some positively charged atoms present that would repulse these particles.
3) A few ( about 1/20000 particles) bounced back
⇒There is a heavy mass of positively charged species in the atom , and since the alpha particles bounced back , this mass of positively charged species must have been highly dense.
Therefore, from these observations and inferences Rutherford concluded that most of an atom is empty space and there is a mass of positively charged particles in the center of the atom called the nucleus which contains protons. The electrons revolve around this nucleus at high speeds.
The mass of the atom is concentrated in the nucleus and is very small in size , making it highly dense.
what is the frequency of an ocean wave that is traveling at a speed of 45 m/s if it has a wavelength of 3 meters.
please show work
Answers
Answer:
The frequency of an ocean wave is 15 Hz.
Explanation:
We are given with, the speed of an ocean wave is 45 m/s. Its wavelength is 3 m
It is required to find the frequency of an ocean wave.
The speed of a wave is given in terms of frequency and wavelength as :
\(v=f\lambda\),
f = frequency of ocean wave
\(f=\dfrac{v}{\lambda}\\\\f=\dfrac{45}{3}\\\\f=15\ Hz\)
So, the frequency of an ocean wave is 15 Hz.
if the universe is 13.8 billion years old, how can we see 46 billion light years away
Answers
if the universe is 13.8 billion years old, how can we see 46 billion light years away because space has also been expanding?
When total distance to distant cosmic objects like galaxies is taken into account, their measurement is referred to as cosmological distance. This distance accounts for universe's ongoing expansion. Space itself stretches as a result of the universe's expansion, causing two things' distances to grow even when they are not physically moving apart.
One may observe objects that are currently positioned farther distant than the age of the universe thanks to this stretching of space. For a very long time, light emanating from these far-off objects has been travelling through space. Light has essentially travelled a greater distance than the actual physical distance between us and the object because of the universe's expansion during that time.
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A given mass of gas has a pressure of 80N/m² at a temperature of 40°C. if the temperature is reduced to 27°C with the volume remaining constant, the new pressure is A. 46.ON/m² B. 75.ON/m² C. 80.0N/m² D. 85.0N/m²
Answers
Answer:
Correct Answer: Option B
Explanation:
Explanation
P1/T1 = P2/T2
80/(273+47) = P1/(273+27) = 75Nm-2
Answer: 75.0 Nm^-2
Explanation:
P1/T1 = P2/T2 80/(273+47) = P1/(273+27) = 75Nm-2
PLS HELP!!!! the image shows a chart to help!!
-The question is, "The following equations represents Chemical reactions. Which equation shows at the total mass during a chemical reaction stays the same?"
answer choice are:
A. equation 2
B. equation 1
C. equation 3
D. equation 4
Answers
what is the absolute value (magnitude) of the emf a battery must produce if 0.005 coulombs of charge gains 0.6 joules of electric potential energy when it moves from the negative to the positive terminal?
Answers
The absolute value (magnitude) of the emf that the battery must produce is 120 volts.
The electromotive force (emf) of a battery is defined as the energy per unit charge that the battery can provide to an electric circuit. In other words, it is the potential difference between the positive and negative terminals of the battery.
Given that 0.005 coulombs of charge gains 0.6 joules of electric potential energy when it moves from the negative to the positive terminal, we can use the formula for electric potential energy:
Electric potential energy = charge x potential difference
We know the charge and the potential energy gained, so we can rearrange the formula to find the potential difference:
Potential difference = electric potential energy / charge
Potential difference = 0.6 J / 0.005 C = 120 J/C
This means that the battery can provide 120 joules of energy per coulomb of charge that flows through it.
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