be able to explain the difference between the original gas thermometer and the modified gas thermometer. how did adding water to the bulb of the pipet change how the thermometer worked? which is more accurate? which has a larger range? be able to explain what causes the differences in accuracy and range.

If m = 2.2 kg, what is the tension in the connecting string,the tension in the connecting string is approximately 21.56 N when the mass is 2.2 kg and all surfaces are friction less.

To determine the tension in the connecting string when the mass is 2.2 kg and all surfaces are friction less, we need to consider the forces acting on the system.

Given:

Mass of the object (m) = 2.2 kg

In a friction less and massless pulley system, the tension in the string is the same on both sides of the pulley. Let's denote the tension in the string as T.

Considering the forces acting on the system:

   Weight force (mg): This force acts vertically downward on the object, with a magnitude of m * g, where g is the acceleration due to gravity (approximately 9.8 m/s^2).

   Tension force (T): This force acts vertically upward on the object and is transmitted through the string.

Since the system is in equilibrium (no acceleration), the magnitudes of the tension force and weight force must be equal. Therefore, we can write:

T = mg

Substituting the given values:

T = 2.2 kg * 9.8 m/s^2

Calculating the expression:

T = 21.56 N

Therefore, the tension in the connecting string is approximately 21.56 N when the mass is 2.2 kg and all surfaces are friction less.

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The second lever system, also known as the wheelbarrow or push-pull system, is the least abundant lever system in our body due to its specific biomechanical function.

This system is primarily used for tasks that require a greater range of motion and speed rather than power, such as pushing or pulling objects with low resistance. While the mechanical advantage of this system may be high, it requires a specific set of muscles and joints to work together in a coordinated manner.

In contrast, the first and third lever systems are more commonly used in our body as they are better suited for tasks that require greater power and force, such as lifting heavy objects. These lever systems utilize larger muscles and joints, making them more abundant in the body. Additionally, the third lever system, also known as the fulcrum, is essential in our body for tasks such as movement and stability.

Therefore, while the second lever system may have a high mechanical advantage, its specific function and requirements make it less abundant in the body compared to the other lever systems.

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The statement "charged particles that move in liquids to create electric current" is true. They can create an electric current.

When charged particles, such as ions, are present in a conductive liquid, they can carry electrical charge and move in response to an applied electric field.

This movement of charged particles constitutes an electric current. The liquid through which the charged particles move is typically referred to as an electrolyte.

Examples of electrolytes include solutions of salts, acids, or bases. In various electrochemical processes, such as batteries and electroplating, the movement of charged particles within a liquid medium plays a crucial role in generating and sustaining electric currents.

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Complete question :

Charged particles that move in liquids to create electric current. T/F

The power of the resistor labeled x is 1.25 W.

To find the power of the resistor labeled x, we need to use the formula P = V²/R, where P is the power in watts,

V is the voltage in volts, and R is the resistance in ohms.
Since the battery voltage is 5 V and both resistors are 5 Ω, we can plug these values into the formula:
P = 5²/5

P = 25/5

P = 5 W
However, since there are two resistors in the circuit, the total power is divided equally between them. Therefore, the power of the resistor labeled x is:
P = 5 W/2

P = 2.5 W
But, the power of the resistor labeled x is actually half of this value, since the resistor labeled x is only one of the two resistors in the circuit. Therefore, the power of the resistor labeled x is:
P = 2.5 W/2

P = 1.25 W

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if the weight of the sdof is 20 kips and the stiffness is 50 kips/in, the natural frequency period of the structure is  12.5 seconds.

In structural dynamics, the natural frequency of a Single Degree of Freedom (SDOF) system is a characteristic property that describes how quickly the system oscillates or vibrates. The natural frequency is determined by the mass of the system and its stiffness.

To calculate the natural frequency, we need to convert the weight to mass and use the formula:

fn = 1 / (2π) * √(k / m)

First, let's convert the weight to mass:

Weight = mg

20 kips = m * 386.4 in/s² (acceleration due to gravity)

m = 20 kips / 386.4 in/s²

m = 51.73 lb/s²

Now, we can calculate the natural frequency:

fn = 1 / (2π) * √(k / m)

fn = 1 / (2π) * √(50 kips/in / 51.73 lb/s²)

fn ≈ 0.080 Hz

Finally, we can calculate the natural frequency period:

Period (T) = 1 / fn

T ≈ 1 / 0.080 Hz

T ≈ 12.5 seconds

Therefore, the correct natural frequency period of the SDOF structure is approximately 12.5 seconds.

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Answer:

Explanation:

  Work done by force applied = force x displacement

= 10 x 2 = 20 J

Negative work done by frictional force

= μ mg x d where μ is coefficient of kinetic friction , m is mass and d is displacement

= - .18 x 4.5 x 9.8 x 2

= - 15.87 J

Net positive work done on the mass = 4.13 J

If v was the initial velocity

increase in kinetic energy = positive work done on mass

= 1 / 2 m v² - 1/2 m u² = 4.13 where v is final and u is initial velocity

1 /2 x 4.5 x 2 ² - 1/2 x 4.5 u² = 4.13

9 - 2.25 u² = 4.13

2.25 u² = 4.87

u² = 2.16

u = 1.47 m /s .

Answer:

Release

Explanation:

The water is heated until

Assuming each concrete span is half the length of the bridge, so 195 m

ΔL = αLΔT,

where,

ΔL: change in length

α: coeff. of thermal expansion

L: current original length

ΔT: change in temperature

We need to look at each span individually.

Let's fill in the variables we know:

L = 195 m

α = 1.2*10^-5 /C

ΔT = 20 C

ΔL = (1.2*10^-5)(195)(20)

ΔL = 0.0468 m, this is how much each span expands.

Now, we can form a triangle with the original length of each span, the new length of each span, and the rise due to buckling.

L0 = 195

Ln = 195 + 0.0468 = 195.0468

Now that we have two of the three sides of the triangle, we can solve for the last side, h.

Pythagorean theorem:

195^2 + h^2 = 195.0468^2

Solving for h,

h = 4.272 m

Answer:

Red, orange, yellow, green, blue, indigo and violet.

Explanation:

Hope I helped! cute copy and paste ☏ ♡ ☆⋆◦★◦⋆°*•°

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⭐ Hii ⭐

➡️ Abbreviation for shades of colors often described as creating rainbows: red, orange, yellow, green, blue, indigo, and violet. Its beginning is sometimes called VIBGYOR in reverse order.

Byy...

Answer:

A) Formation of ions

B)Formation of ionic bonds

C)Formation of cubes

D)Formation of crystals

Hope this helps

Answer:

1 4 2 3

Explanation:

edge 2021

When a car sounds its horn as it approaches and moves away from an observer, there is a change in pitch known as a Doppler shift. During the approach, the received frequency is higher than the emitted frequency. ]Thus, option B is correct.

You hear a fairly high-pitched sound, like an ambulance coming at you with sirens blazing. This is because the moving ambulance is squishing the sound waves in front of the car together.

A good illustration of the Doppler effect is this. Since the effective wavelength is reduced due to an approaching source moving closer throughout the sound wave's period while the wave's velocity remains constant, the pitch is increased. Similar to this, a sound source that is fading away will have a lower pitch.

Therefore, Sound waves are pushed closer together, increasing wavelength and decreasing frequency.

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Answer:B

Explanation:

Answer:

igneous : heat, sedimentary :erosion, gravity, weathering, metamorphic :decomposition, pressure

Explanation:

igneous rocks are from volcanic activity, sedimentary are from deposition, weathering and erosion, metamorphic formed under pressure

Answer:

(below answer)

Explanation:

Suppose we want to know what the Sun is made of. What should we do? Compare the wavelengths of lines in the Sun's spectrum to the wavelengths of lines produced by chemical elements in the laboratory.

Freefall is the state of a body that moves freely in any direction in the presence of gravity. The window is 15.01 meters above the ground.

According to free fall,

vf = g * t

here Vf = 17.2 m/s

g = 9.8 m/s^2

then t = vf/ g = 17.2/9.8 =1.75 sec

According to free fall Equation,

Distance d = 1/2 g * t^2

d= 1/2 *9.8 * 1.75^2= 15.01 m

Window is located 15.01 m height from the Ground.

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The smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

A recognized and accepted standard for measuring other amounts of the same sort is referred to as a unit of measurement. It is predetermined by custom or law.

As given in the problem, we have to find out what is the smallest particle size a scientist can observe using a scanning probe microscope.

1 millimeters = 1 × 10 ⁻³ meter

1 nanometer = 1 × 10⁻⁹  meters

Thus, the smallest particle size a scientist can observe using a scanning probe microscope would be a nanometer, therefore the correct answer is option B.

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Answer:

Displacement = 7 meters

Explanation:

Given that,

Jaune moves North 15 meters, South 5 meters, then North 8 meters. We need to find the displacement of Jaune.

The attached figure shows the motion of Jaune.

We know that, Displacement = final position - initial position

Initially, Jaune traveled 15 meters due North and finally, he travel 8 meters North.

Displcement = 15 m - 8 m

Displacement = 7 m

So, the displacement of Jaune is 7 meters.

Answer:

Given

mass (m) =5kg

velocity (v) =6m/s

momentum (p) =?

Form

p=mv

5kgx6m/s

p=30kg.m/s

momentum =30kg.m/s

Wavelength is Infinity

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is often defined in wireless systems in metres(m),  centimetres(cm), or millimetres(mm).

A blackbody never approaches zero, hence the wavelength of the highest intensity that a heavenly object may produce is infinite. As a celestial object's temperature rises, its overall energy output increases quickly.

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The acceleration of this object is equal to 5 m/s².

In order to determine the acceleration of this physical object during this distance, we would apply the third equation of motion:

v² = u² - 2as

Where:  

By substituting the given parameters into the third equation of motion, we have the following;

v² = u² - 2as

20² = 0² - 2a(40)

80a = 400

Acceleration, a = 400/80

Acceleration, a = 5 m/s².

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You can start the problem by using the formula for capacitance, C = Q/V, where C is the capacitance, Q is the charge stored on the capacitor, and V is the potential difference across the capacitor.

A capacitor is a passive electrical component that stores electrical energy in an electric field. It consists of two conductive plates, separated by an insulating material called the dielectric. When a voltage is applied across the conductive plates, an electric field is created, which stores energy in the dielectric. The ability of a capacitor to store electrical energy is measured in farads (F).

Given that Capacitor 2 has half the capacitance and twice the potential difference as Capacitor 1, you can express the capacitance and potential difference of Capacitor 2 in terms of those of Capacitor 1.

C₂ = 1/2 × C₁ V₂ = 2 × V₁

You can use these equations to find the ratio of the stored energy in the two capacitors. The stored energy in a capacitor is given by the formula U = 1/2CV², where U is the stored energy, C is the capacitance, and V is the potential difference.

Uc1 = 1/2C₁V₁² Uc2 = 1/2C₂V₂²

By substituting the values of C₂ and V₂ in terms of C₁ and V₁, you can find the ratio of the stored energy in the two capacitors:

Uc1/Uc2 = (1/2C₁V₁²) / (1/2×(1/2C₁) (2V₁) ²) Uc1/Uc2 = 1/8

The ratio of stored energy in the two capacitors is 1/8.

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Answer: The minimum depth of harbor of the oil tank is 2.22 m

Explanation:

here you go hope this helps

Hey,

Following the second Newton's Law  :

✔ We apply : F = m x a ⇔ m = F/a with F in N, m in kg and a in m/s²

the object therefore has a mass of 8 kg

Answer:

The net and only force acting on the ball thrown up into the air at half of its maximum height is the weight  of the ball

Explanation:

When the ball is rising in the air, the force, F, acting on it is given by the product of the mass, m × acceleration, a

The acceleration of a body thrown in the air = Gravitational acceleration = g = Constant

Therefore;

The force acting on the body thrown in the air F = Constant = m × g (downwards)

The force acting on the ball thrown up into the air at half of its maximum height = The mass of the ball × The acceleration due to gravity = The weight  of the ball.

Explanation:

Remember

  V = IR       which is    V/I = R      120 v / .5 A = 240 Ω

Answer: destructive interference

Explanation: maximum points of a wave and minimum points of

Another wave overlap and sum is zero

Answer:

A wedge is a machine that consists of two inclined planes, giving it a thin end and thick end. A wedge is used to cut or split apart objects. Force is applied to the thick end of the wedge, and the wedge applies force to the object along both of its sloping sides. This force causes the object to split apart

Answer:

Explanation:

true true fauls true fauls fauls

1 . The higher the frequency, the closer the waves are together and the LOWER the energy carried by the waves will be. FALSE

2. The greater the force that produces a wave, the greater the amplitude of the wave and the greater the energy carried by the wave. TRUE

3. In a transverse wave the higher the wave, the LOWER the amplitude FALSE

4.Wavelength is a measure of the distance from the crest on one wave to the crest on the very next wave, TRUE
5. Speed is a measure of the distance a wave travels in an amount of time TRUE

6. As a wave enters a different medium, the wave’s speed changes. Waves travel at different speeds in different media TRUE

7. The highest point of a transverse wave is the crest and the lowest point is called a trough. TRUE

A wave is a disturbance in a medium that carries energy and  as well as momentum. Energy can be transferred in the form of wave in the medium. there are two types of wave,

longitudinal wave : in which, vibration of the medium (particle) is parallel to propagation of the wave as shown in the fig.1. Sound wave is a longitudinal wave.

Transverse wave : in which, vibration of the medium (particle) is perpendicular to propagation of the wave as shown in the fig.2. Light wave is a longitudinal wave.

1. E = hυ where υ is a frequency which shows direct relation between Energy E and frequency υ. Hence it is false.

2. True

3. In a transverse wave the higher the crest in the wave, the higher the amplitude. FALSE

4. True

5. True, Speed = Distance÷Time

6. due to change in refractive index, velocity changes TRUE

7.True

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Answer:

The expected time is 2.28 hours.

Explanation:

The speed of storm = 35 km/hr

The distance between the house and the storm = 80 km.

Now, we have to find the time taken by storm to arrive at the house. Here, we can determine the time by dividing the distance with speed.

The time, taken by storm =  Distance/speed

The time, taken by storm = 80 / 35

The time, taken by storm = 2.28 hours.