Work = 196 J = 196 kg.m^2.s^-2
[We know that 1J = 1 kg.m^2.s^-2]
Displacement = 2m
Acceleration (g) = 9.8ms^-2
We know that,
W=Fs and F=ma
So, W = (ma)s
=> W = m×a×s
=> 196 kg.m^2.s^-2 = m×9.8ms^-2×2m
=> 196 kg.m^2.s^-2 = m×19.6m^2.s^-2
=> 196 kg.m^2.s^-2 = m×19.6m^2.s^-2
=> (196 kg.m^2.s^-2)/(19.6m^2.s^-2) = m
=> 10kg = m
So, mass = 10kg
I’m so confused I don’t get what I have to put in
Answer:
inner planets are the first couple of planets by the sun so for the character for the internal planets are what they are like are they made up of gas, rock/solid stuff and the atomsphere is like is it toxic or safe to breath
Two objects have the same velocity. These two objects have different masses. Which object will
have greater momentum? Why?
Answer:
The object with the greater mass will have the greater momentum
Explanation:
The momentum of an object with mass m, moving with velocity , is given by the formula
M = mv
Since both objects have the same velocity v, it is clear that the object with the bigger mass will have the greater momentum
El profesor de Pedro mencionó en su clase que la distancia promedio de la Tierra a la Luna es de 384 000 000 metros. Ayuda a Pedro a escribir este número en notación científica
Answer:
384 000 000 en notación científica es 3.84*10⁸
Explanation:
La notación científica es una forma de representar números para simplificar la forma en que se escriben. Esta notación se utiliza para poder expresar muy fácilmente números muy grandes o muy pequeños.
Los números se escriben como un producto:
a*10ⁿ
donde:
a es un número real mayor o igual que 1 y menor que 10.n es un número entero, que recibe el nombre de exponente u orden de magnitud. Representa el número de veces que se desplaza la coma. Siempre es un número entero, positivo si se desplaza a la izquierda, negativo si se desplaza a la derecha.Para escribir el número 384 000 000 en notación científica, se realizan los siguientes pasos:
Se mueve la coma decimal hacia la izquierda tantos espacios hasta llegar a la derecha del primer dígito. En este caso la coma se encuentra al final del número.Se escribe entonces este número, que será el coeficiente a en la expresión a*10ⁿ. En este caso es el valor 3.84, donde el punto representa la coma decimal.Se escribe la base 10 con el exponente igual a la cantidad de espacios que se mueve la coma. Este es un número positivo porque la coma se desplaza a la izquierda. Entoces, como la coma decimal se mueve 8 lugares, n=8Entonces, 384 000 000 en notación científica es 3.84*10⁸
Two identical converging lenses of focal length 100 mm are placed 400 mm apart, and an object 40 mm tall is placed 230 mm to the left of the left lens. (a) Draw a scale diagram showing the three principal rays for the left lens, and use them to locate the image formed by this lens. (b) Draw the principal rays for the right lens, and use them to locate the image formed by this lens. Is the image formed by the right lens (c) real or virtual, (d) inverted or upright, (e) larger or smaller than the object?
(a) Image formed by the left lens is 133.33 mm to the right of the lens. (b) image formed by both lenses is 200 mm to the left of the right lens. (c) real (d) inverted (e) larger.
(a) To find the image formed by the left lens, we can use the three principal rays. The first principal ray passes through the center of the lens and goes straight through, unaffected by the lens. The second principal ray passes through the lens and goes through the focal point on the right side of the lens. The third principal ray passes through the top of the object and also goes through the focal point on the right side of the lens.
After passing through the lens, the two latter rays will converge at a point on the right side of the lens. This point is the image formed by the left lens. To find the location and size of the image, we can use the lens equation:
1/f = 1/do + 1/di,
here,
f is focal length,
do is object distance,
di is image distance.
In this case, f = 100 mm, do = 230 mm, and we are trying to find di.
Reserving values into equation:-
1/100 = 1/230 + 1/di
1/di = 1/100 - 1/230
di = 230 * 100 / (230 + 100)
= 133.33 mm
Hence, the image formed by the left lens is 133.33 mm to the right of the lens and is virtual, erect, and smaller than the object.
(b) To find the image formed by the right lens, we can use the three principal rays that are formed after passing through the image formed by the left lens. The first principal ray passes straight through the center of the right lens, unaffected by the lens. The second principal ray passes through the top of the image and goes through the focal point on the left side of the right lens. The third principal ray passes through the bottom of the image and also goes through the focal point on the left side of the right lens. After passing through the right lens, the two latter rays will converge at a point on the left side of the right lens. This point is the final image formed by both lenses. To find the location and size of the final image, we can use the lens equation again:
1/f = 1/do + 1/di,
here,
f is focal length,
do is object distance,
di is image distance.
In this case, f = 100 mm, do = 133.33 mm (the distance to the image formed by the left lens), and we are trying to find di.
Reserving values into equ.:-
1/100 = 1/133.33 + 1/di
1/di = 1/100 - 1/133.33
di = 133.33 * 100 / (133.33 + 100) = 200 mm
So, the final image formed by both lenses is 200 mm to the left of the right lens and is real, inverted, and larger than the object.
(c) Image will be real.
(d) Image will be inverted.
(e) Image will be larger than the object.
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Un bouteille de jus d’orange contient 100 g de sucre. Une cannette de 33 cL de soda contient 34 g de sucre.
1. Quelle est la concentration en sucre dans un verre de 20 cL de jus d’orange ? 2. Quelle est la masse de sucre dans un verre de 20 cL de jus d’orange ?
3. Comparer les concentration en sucre du soda et du jus d’orange.
Answer:
Does sugar make us sick? For his film Sugar Land , in theaters on Wednesday January 24, director Damon Gameau tested the effects of a high-sugar diet on his body, which was apparently in good health before the start of the experiment. According to a study published by the Harvard School of Public Health, people who consume one to two cans of sugary drinks a day are 26% more likely to develop type 2 diabetes than those who rarely consume them. This disease usually occurs in adults aged 40 and over, and affects more overweight people.
The Openfoodfacts site, which lists food products and their nutritional information, presents more than 1,300 references in its sugary drinks section , with an average sugar intake of 20 g per drink. We have selected 22 drinks, from the best-known sodas to refreshing drinks recently released on the French market, and we have measured the number of sugar cubes of caliber 4 (6 g per piece) that each of them contains. Find out how many pieces are hiding in our cans.
True or false. A small amount of mass can produce a large amount of energy
The satement is true.
This comes from the fact that, according to Einstein:
\(E=mc^2\)and since c² is a very large number then, if we find a way to convert all the mass in energy a small amount will produce a large amount of energy.
(a) what is the characteristic time constant of a 23.2 mh inductor that has a resistance of 4.21 ω? ms (b) if it is connected to a 12.0 v battery, what is the current after 12.5 ms? a
The current through the circuit after 12.5 ms is 2.5864 A.
The characteristic time constant of a 23.2 mh inductor that has a resistance of 4.21 ω is 5.82115 ms.
If it is connected to a 12.0 v battery, the current after 12.5 ms will be 2.5864 A.
Below are the steps to get to the answer:(a) Calculate the characteristic time constant of the circuit using the formula:τ = L/RWhere τ is the time constant, L is the inductance of the inductor, and R is the resistance of the circuit.tau=23.2mH/4.21Ω=5.82115ms
Hence, the characteristic time constant of the circuit is 5.82115 ms.
(b) To calculate the current through the circuit, we need to use the formula:i = (V/R) [1 - e(-t/τ)]Where i is the current, V is the voltage of the battery, R is the resistance of the circuit, t is the time, and τ is the characteristic time constant of the circuit.i = (12/4.21) [1 - e(-12.5/5.82115)]i = 2.5864
Hence, the current through the circuit after 12.5 ms is 2.5864 A.
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why does a bowling ball and a father fall at the same speed while in a vacuum?
PLZ NEED HELP
Answer:
there is no drag in a vacuum (why is father in a vaccum)
Explanation:
there is nothing to hit and slow the object other than gravity like dust or air
PLEASE HELP QUICK!! A parachute works by increasing the amount of time it takes to bring your
body to a stop. If the impulse is the same, increasing the time will
A)increase the momentum
B)increase the force C)decrease the momentum
D)decrease the force
Answer:
D) decreses the force .... so the guy can land safely :)
Explanation:
Why are solar storms a concern to Earth?
Which chemical bond has a low melting point? Why does this bond have low melting points? A common compound that this bond produces is used in our everyday life. SUGAR!
Answer:
1,2: When simple molecular substances melt or boil, it is these weak intermolecular forces that are overcome. The covalent bonds are not broken. Relative little energy is needed to overcome the intermolecular forces, so simple molecular substances have a low melting and boiling points.
3: Water, Almost no living thing can survive without water. Water is everywhere on our planet. It is the reason we have an organic life on earth. A water molecule consists of one oxygen atom combined with two hydrogen atoms. We use water throughout day and night; in drinking, cooking, household needs, industries, and agriculture. Apart from these general uses of water, you might be amazed to know that water plays a major role in volcanic eruptions.
the process of freezing will: group of answer choices consume latent heat and cools down the environmental air. release latent heat and warms up the environment air. consume latent heat and warms up the environment air. release latent heat and cools down the environmental air.
Latent heat will be consumed during the cooling process, warming the surrounding air. A material turns from a liquid to a solid by releasing heat into the environment when it freezes.
The process of freezing requires the removal of latent heat from a substance to change its state from a liquid to a solid. This means that freezing consumes latent heat from the substance itself, causing it to cool down. However, since the process also requires the substance to release this heat to the surrounding environment, the environment air is warmed up instead of being cooled down. This warming effect is due to the fact that the heat energy released during the freezing process is transferred from the substance to the surrounding air. Therefore, although the substance being frozen may become colder, the surrounding air becomes warmer, and this can have significant effects on the environment, especially in areas where freezing occurs frequently or over extended periods of time.
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a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. when the ball is at the bottom of the circle, the tension in the string is 15 n.
The speed of the ball at the bottom of the circle is approximately 7.88 m/s.
The speed of the ball at the bottom of the circle, we can use the concept of centripetal force. The tension in the string provides the necessary centripetal force for the ball to move in a circular path.
Mass of the ball (m) = 500 g = 0.5 kg
Length of the string (r) = 1.5 m
Tension in the string (T) = 15 N
At the bottom of the circle, the tension in the string is equal to the sum of the weight of the ball (mg) and the centripetal force (m\(v^{2}\)/r).
T = mg + m\(v^{2}\)/r
Substituting the given values:
15 N = (0.5 kg) * g + (0.5 kg) * \(v^{2}\) / 1.5 m
We can simplify the equation by substituting the acceleration due to gravity (g) as 9.8 m/\(s^{2}\).
15 N = (0.5 kg) * 9.8 m/\(s^{2}\) + (0.5 kg) * \(v^{2}\) / 1.5 m
Rearranging the equation, we get:
15 N - (0.5 kg) * 9.8 m/\(s^{2}\) = (0.5 kg) *\(v^{2}\) / 1.5 m
Simplifying further, we have:
\(v^{2}\) = (1.5 m) * (15 N - (0.5 kg) * 9.8 m/\(s^{2}\)) / (0.5 kg)
Solving for v, we find:
v = √[(1.5 m) * (15 N - (0.5 kg) * 9.8 m/\(s^{2}\)) / (0.5 kg)]
Calculating the value, we get:
v ≈ 7.88 m/s
Therefore, the speed of the ball at the bottom of the circle is approximately 7.88 m/s.
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Which of Newton’s laws best describes why the penny hung in the air for a split second?
On a day with complete cloud cover, what happens to the visible light headed toward Earth?
(a) The clouds reflect much of it back to space, though some still reaches the surface.
(b) It is absorbed by the clouds, which causes the clouds to heat up.
(c) It reaches the surface just as it does on a cloudless day.
On a day with complete cloud cover, the visible light headed toward Earth: The clouds reflect much of it back to space, though some still reaches the surface.
When the sun shines, the Earth's atmosphere scatters it in all directions. This is why certain sections of the Earth appear brighter than others during the day—the Sun's light has been reflected off of the ground and other objects. When the planet is completely clouded over, no light reaches Earth at all. The term "nowhere" refers to the fact that there is no such thing as a sunrise since there is no such thing as a dawn. On a cloudy day, visible light directed toward the earth is misdirected and darkened by the clouds. This is due to the fact that shorter wavelengths of visible light scatter more than longer wavelengths. Rayleigh scattering is the name given to this phenomena.
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difference between national park and wild life reserve
Answer:
wildlife reserves are not available for camping...but you can camp at a skatepark
A solid conducting sphere of radius r
A
=10.67 cm has a surface charge density of σ
A
= −42.39
m
2
C
on its surface. A neutral concentric spherical shell of inner radius r
B
=30.1 cm, and outer radius r
C
=34.4 cm surrounds the solid sphere. Determine the charge density on the inner surface of the spherical shell (in
m
2
C
).
The charge density on the inner surface of the spherical shell is zero, i.e., σ_B = 0 m²C.
The charge density on the inner surface of the spherical shell can be found by considering the electric field at the surface of the solid sphere.
The electric field inside a conductor in electrostatic equilibrium is zero. Therefore, the electric field at the surface of the solid sphere must be zero as well, since it is a conducting sphere.
The electric field at the surface of the solid sphere can be determined using Gauss's law. The electric field due to the solid sphere is given by:
E_A = σ_A / ε₀,
where σ_A is the surface charge density of the solid sphere and ε₀ is the vacuum permittivity.
Substituting the given values, we have:
E_A = (-42.39 m²C) / (8.85 × 10⁻¹² C²/N·m²) = -4.79 × 10¹² N/C.
Since the electric field is zero at the surface of the solid sphere, the electric field inside the spherical shell is also zero.
The electric field inside the spherical shell is also given by:
E_B = σ_B / ε₀,
where σ_B is the charge density on the inner surface of the spherical shell.
Since E_B = 0, we can conclude that σ_B = 0.
Therefore, the charge density on the inner surface of the spherical shell is zero, i.e., σ_B = 0 m²C.
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what is the voltage output (in v) of a transformer used for rechargeable flashlight batteries, if its primary has 485 turns, its secondary 8 turns, and the input voltage is 122 v?
The voltage output of the transformer used for rechargeable flashlight batteries is 1.97 V.
A transformer is a device that alters the voltage of AC electricity by magnetic induction. It can either raise (step up) or lower (step down) the voltage. The voltage ratio of a transformer is directly proportional to the number of turns in the primary and secondary coils.
The voltage output (in volts) of a transformer used for rechargeable flashlight batteries is 1.97 V if its primary has 485 turns, its secondary 8 turns, and the input voltage is 122 V.
The voltage ratio of a transformer is given by the following formula:
Number of turns in the secondary coil / Number of turns in the primary coil = Voltage output / Input voltage
Using the given values: Number of turns in the secondary coil = 8
Number of turns in the primary coil = 485
Input voltage = 122 V
Voltage output = ?
Therefore: 8/485 = Voltage output / 122
Simplifying the equation: Voltage output = (8/485) × 122 = 1.97 V
Therefore, the voltage output of the transformer used for rechargeable flashlight batteries is 1.97 V.
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What is the relationship between the pitch and frequency of a sound wave?
The pitch of a sound wave is directly related to its frequency.
What is pitch of a sound wave?Pitch is measured in hertz (Hz). The higher the frequency of the sound wave, the higher the pitch.
For example, a sound wave with a frequency of 1000 Hz would have a higher pitch than a sound wave with a frequency of 500 Hz.
Pitch and frequency work together to produce the sounds. As sound waves travel through the air, they cause particles in the air to vibrate. These vibrations are then picked up by ears and interpreted by the brain as sound.
For example, the musical note A4 has a frequency of 440 Hz and C4 has a frequency of 261.626 Hz.
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When a ray of light strikes a surface, it can be _, _ or _
Answer;
it can be incident ray.
Suppose two objects are gravitationally attracted to each other with some force F. If the mass of object 1 is multiplied by a factor of five and the mass of object 2 is multiplied by a factor of two, what will the new gravitational force be between the objects?
A. F2
B. 1/2F
C. 0.1F
D. 2F/5
E. 5F
J. 10F
Please help will mark brainliest
If F = Gm₁m₂/d², and we change m₁ to 5m₁ and m₂ to 2m₂, then the new magnitude of the gravitational force is
F' = G (5m₁) (2m₂) / d²
F' = 10 Gm₁m₂ / d²
but this is really just F' = 10F. So J is the correct choice.
Hi there!
Using Newton's Law of Universal Gravitation:
\(\large\boxed{F_g = G\frac{m_1m_2}{d^2}}\)
Fg = Force of gravity (N)
G = Gravitational Constant
m₁ = mass of object 1 (kg)
m₂ = mass of object 2 (kg)
d = distance between the objects (m)
There is a direct relationship between the masses of the objects and the resulting force of gravity, so we can plug new values in:
\(F_g = G\frac{5m_12m_2}{d^2}} = 10G\frac{m_1m_2}{d^2}} = 10F_g\)
Thus, the correct answer is J. 10Fg.
Sitting on the table is a red book and a blue book. Which one is hotter?
A. Books are not blackbodies, so they do not emit radiation.
B. The red book
C. They are probably the same temperature
D. The blue book
C. They are probably the same temperature. it is likely that both the red book and the blue book are at the same temperature.
The color of an object does not inherently determine its temperature. The perceived color of an object is based on the wavelengths of light it reflects or absorbs. While different colors may have different abilities to reflect or absorb light, this does not necessarily indicate differences in temperature. Without additional information about the books or their exposure to external heat sources, it is reasonable to assume that both books sitting on the table would be at the same ambient temperature. In the absence of any specific heating or cooling mechanisms acting on the books, they would equilibrate with the surrounding environment and reach the same temperature over time.
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When you pick something up do you do work to it
Answer:
Simple answer: Yes
Explanation:
Even if you touch an item with a stick you re still doing work to it, most of the time something sitting on a table not being disturbed is having work done to it. Everything has the force of gravity working on it to essentially keep the items from floating away so workis being done to it.
Work done can be something so small (e.g) a pencil sitting on a table) or as big as an earthquake or kicking a ball through a window and smashing the glass.
Not having to worry about your health, job, or being attacked are related to this level
of needs.
Answer:
This level of needs is known as safety needs. Safety needs are the need for security, stability, and protection from physical and emotional harm. These needs include physical safety, financial security, health and well-being, and protection from discrimination and harassment.
Explanation:
how long does it take a message to travel from earth to a spacecraft at mars at its closest to earth
The time it takes for a message to travel from Earth to a spacecraft on Mars, which is at its closest to Earth, is referred to as the "one-way light-time .
One-way light-time is the time it takes for a signal (a message) to travel from a spacecraft at Mars to Earth, or vice versa, traveling at the speed of light. The signal travels at the speed of light, which is around 300,000 kilometers per second. The time it takes for a message to travel from Earth to Mars at its closest point is referred to as the "one-way light-time." This is a one-way journey, which means the spacecraft must wait for a return signal before it can begin to send a new message
Since the distance between Earth and Mars varies over time, the one-way light-time changes as well. At its closest point to Earth, Mars is around 50 million kilometers away. At this distance, the one-way light-time is around 3 minutes and 2 seconds. At its farthest point, Mars can be as far as 400 million kilometers acceleration from Earth, with a one-way light-time of around 22 minutes.
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A 14 kg boulder is pushed off a cliff with velocity v = ( 14.0 m/s ) + ( 2.0m/s ) y . Will the object experience a larger vertical or horizontal acceleration?
The object will eventually experience a large vertical acceleration since the vertical velocity increases as the object moves downwards.
What is horizontal motion of a projectile?The horizontal motion of a projectile is the motion of the projectile along a horizontal path.
The horizontal distance of a projectile is not affected by gravity and hence the horizontal speed of a projectile remains constant. That is the initial horizontal velocity is equal to the final horizontal velocity of the projectile.
However, the during the vertical motion an object, the vertical velocity decreases as the object moves upwards and eventual becomes zero when the object reaches the maximum height.
As the object begins to move downwards the vertical velocity increase and eventually become maximum before the object hits the ground.
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A 75.0 kg driver slides into a seat in a truck that has only 1 spring. The spring compresses 1.60 cm = 0.0160 m. What is the spring constant of the spring in the seat?
Answer
0.510
Explanation:
A man carries a 25 kg box 5 meters across the room. How much work is being done?
Answer:
Given :-Mass = 25 kg
Height = 5 m
Acceleration due to gravity = 10 m/s
To Find :-Work done
Solution :-We know that
W = mgh
W = 25 × 5 × 10
W = 250 × 5
W = 1250 J
\( \\ \\ \\ \)
Identify the property that makes copper metal ideal for wiring.
Answer:
The lower the level of resistivity, the more electrical conductivity a metal has. And since copper wire has a low level of resistivity, it's a fantastic electrical conductor. Copper is also an incredibly flexible material.
What part of the microscope do you adjust to change the amount of light?
The microscope has two sets of lenses, one in the eyepiece and one in the objective lens. The amount of light is changed by adjusting the diaphragm of the microscope. The diaphragm controls the amount of light that passes through the stage and is focused on the object being viewed.
There are two types of diaphragms in a microscope: the iris diaphragm and the disk diaphragm. The iris diaphragm is adjustable, while the disk diaphragm is preset. The iris diaphragm is located near the base of the microscope and can be adjusted to control the amount of light that enters the microscope. It works like a camera aperture, opening or closing to let in more or less light. When the iris diaphragm is closed, less light enters the microscope, and the image appears darker.
When the iris diaphragm is open, more light enters the microscope, and the image appears brighter. By adjusting the iris diaphragm, you can get the best possible image of the object being viewed. To summarize, the diaphragm is the part of the microscope that you adjust to change the amount of light. The iris diaphragm is adjustable, while the disk diaphragm is preset. By adjusting the diaphragm, you can get the best possible image of the object being viewed.
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