Which of the following accurately describes the behavior of water when subjected to temperature change? Question 10 options: A) A mass of water will expand if heated from 0°C to 2°C. B) The volume of water will increase if cooled from 3°C to 2°C. C) The volume of water will decrease if heated from 6°C to 7°C. D) A mass of water will contract if cooled from 1°C to 0°C.

Answer:

D. Move more slowly than surface currents

Explanation:

i ain't never seen 2 pretty bestfriends,, nae nae killua  nae nae killua

{plz tell me if im wrong okok bye bye :P}

One feature of deep ocean currents is that these move more slowly than the surface currents. Thus, the correct option is D.

The two basic types of currents which are seen in the ocean are the surface-water currents and the deep-water currents, which help in defining the characteristic and flow of ocean waters across the planet.

Deep currents are also known as the thermohaline circulation, which results from the differences in water density. These currents in the water body occur when it is cold, dense at the poles sinks. Surface water flows to replace the sinking water, causing a conveyor belt-like effect of the water which is circulating around the globe on a 1000-year journey.

Therefore, the correct option is D.

Learn more about Deep ocean currents here:

https://brainly.com/question/21654036

#SPJ6

The therapeutic effects of heat include increasing the extensibility of collagen tissues; decreasing joint stiffness; reducing pain; relieving muscle spasms; reducing inflammation, edema, and aids in the post acute phase of healing; and increasing blood flow.

In the process of ATP production by cells throughout the body, approximately 60 percent of the energy produced is in the form of heat used to maintain body temperature. Thermoregulation is an example of negative feedback.

Why is heat used as a treatment during health care?

Heat treatments should be used for chronic conditions to help relax and loosen tissues, and to stimulate blood flow to the area. Heat is a great treatment option for chronic conditions caused from old injuries or even arthritis. Heat can be applied before participating in activities to help limber up.

So we can conclude that heat is one of the most important form of energy for our daily life.

Learn more about heat here:https://brainly.com/question/934320

#SPJ1

Answer:

f = 2200 Hz

Explanation:

It is given that,

Speed of a wave is 242 m/s

The distance between crests is 0.11 m

We need to find the frequency of the wave. The distance between crests is called wavelength of a wave. So,

\(v=f\lambda\\\\f=\dfrac{v}{\lambda}\\\\f=\dfrac{242}{0.11}\\\\f=2200\ Hz\)

So, the frequency of the wave is 2200 Hz.

Answer:2200 hz

Explanation:

Answer: 85% of the victims in domestic abuse cases are women.

Explanation:

This question is already asked

The speed of the GPS satellite in orbit is approximately 3.87 km/s.

MEO, or medium earth orbit, is the term used to describe orbits of this altitude.

We can use the formula for the speed of an object in circular orbit:

v = √(GM/r)

where v is the speed of the satellite, G is the gravitational constant, M is the mass of the Earth, and r is the distance between the center of the Earth and the satellite (which is the sum of the radius of the Earth and the altitude of the satellite).

The mass of the Earth is approximately 5.97 x 10²⁴kg, the radius of the Earth is approximately 6,371 km, and the altitude of the GPS satellite is 20,200 km.

Converting the units to meters, we have:

M = 5.97 x 10²⁴ kg

r = (6,371 km + 20,200 km) x 1000 m/km

= 26,371,000 m

G = 6.674 x 10⁻¹¹ N·m²/kg²

\(\mathrm{v = \sqrt{\dfrac{(6.674 \times 10^{-11} N\cdot m^2/kg^2) \times (5.97 x 10^24 kg)}{(26,371,000 m)} } }\)

= 3.87 km/s

Therefore, the speed of the GPS satellite in orbit is approximately 3.87 km/s.

To know more about satellites visit:-

brainly.com/question/10846004

#SPJ4

The potential energy U of an object with mass m located a distance h above the ground is given by the expression:

Where g=9.81m/s^2 is the gravitational acceleration on the surface of Earth.

Since the 2.85kg object is located 12.7 meters below the ground, we can consider h to be negative. Replace m=2.85kg, g=9.81m/s^2 and h=-12.7m to find the potential energy of the object measured from the ground level:

Therefore, the potential energy of the object measured from the ground level is approximately 355J.

Answer:

(a) 98 N

(b) 158 N

(c) 38 N

Explanation:

When the acceleration is 0 m/s², the net force on the mass is 0 N. Therefore, the tension force is equal to the weight force due to Newton's Second Law:

Since the tension in the cable and the weight of the mass are equal to each other, we can solve for the weight force of the mass by using:

Since T = w, we can say that T = 98 N.  

Let's set the upwards direction to be positive and the downwards direction to be negative. We can use Newton's Second Law to solve for the tension in the cable if the acceleration is 6 m/s² upward:

Plug the known values into the equation and solve for T.

The tension in the cable if the acceleration is +6 m/s² is 158 N.

The process is the same, but this time acceleration is -6 m/s².

Plug known values into the equation and solve for T.

The tension in the cable if the acceleration is -6 m/s² is 38 N.

Answer:

a. The acceleration would increase.

Explanation:

because we know that

F=ma

m= mass and a= acceleration

so Mass is same for the cart in any situation that's why only acceleration could increase.

Answer:

A

Explanation:

because when the cart is pushed at 10N it at 5.0 the when u increase the N it will keep on increasing...

The displacement of the train after 2.23 seconds is 25.4 m.

The resultant velocity of the train is calculated as follows;

R² = vi² + vf² - 2vivf cos(θ)

where;

R² = 8.81² + 9.66² - 2(8.81 x 9.66) cos(76)

R² = 129.75

R = √129.75

R = 11.39 m/s

The displacement is calculated as follows;

Δx = vt

Δx = 11.39 m/s x 2.23 s

Δx = 25.4 m

Thus, the displacement of the train after 2.23 seconds is 25.4 m.

Learn more about displacement here: https://brainly.com/question/2109763

#SPJ1

List the order in which the four liquids separate, starting with the one on top to the one on the the bottom of the beaker: Ethyl alcohol, Olive oil, Water, Honey.

Immiscible liquids are those that do not mix into one another to form two separate layers. A separating funnel can be used to divide these two liquids.

When mixed, some liquids separate and don't mix. They differ in density, which explains this. Density refers to how much of a particular thing is crammed into a specific space. The same amount of a more dense object or substance feels heavier than the same amount of a less dense object or substance.

To know more about liquids visit:

https://brainly.com/question/20922015

#SPJ1

Answer:

1.03A

Explanation:

For computing the magnitude of the current in the circuit we need to do the following calculations

LCR circuit impedance

\(Z = \sqrt{R^2 + (X_L - X_c)^2} \\\\ = \sqrt{110^2 + (210 - 110)^2}\)

= 148.7Ω

Now the phase angle is

\(\phi = tan^{-1} (\frac{X_L - X_C}{R}) \\\\ = tan^{-1} (\frac{210 - 110}{110})\\\\ = 42.3^{\circ}\)

Now the rms current flowing in the circuit is

\(I_{rms} = \frac{V_{rms}}{Z} \\\\ = \frac{146}{148.7}\)

= 0.98 A

The current flowing in the circuit is

\(I = I_{rms}\sqrt{2} \\\\ = (0.98) (1.414)\)

= 1.39 A

And, finally, the current across the generator is

\(I'= I cos \phi\)

\(= (1.39) cos 42.3^{\circ}\)

= 1.03A

Hence, the magnitude of the circuit current is 1.03A

Answer:

acceleration =

\(8.33ms {}^{ - 2} \)

Explanation:

we know,

force = mass × acceleration

8.33 m/s² quickly would a 60kg object accelerate if the person applied a 500N force.

Acceleration the rate at which speed and direction of a moving object vary over time. A point or object moving straight ahead is accelerated whenever it accelerates or decelerates. Even if the speed remains constant, motion on the a circle accelerates so because direction is constantly shifting.

An item that is slowing down will always have a negative acceleration if the current direction of motion is constantly selected as positive.

Force = mass × acceleration

500 = 60 × a

a = 500 / 60

a = 50 / 6

a = 8.33 m/s²

To know more about Acceleration visit:

https://brainly.com/question/12550364

#SPJ2

The velocity of the drum after the collision with a lorry of 2000 kg mass is determined as 1,280 km/h.

The velocity of the drum after the collision is calculated by applying the principle of conservation of linear momentum as follows;

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

where;

The velocity of the drum after the collision is calculated as;

2000 (50) + 25(0) = 2000(34) + 25v₂

100,000 = 68,000 + 25v₂

25v₂ = 32,000

v₂ = 32,000/25

v₂ = 1,280 km/h

Thus, the final velocity of the drum after the collision is calculated by applying the principle of conservation of linear momentum.

Learn more about linear momentum here: https://brainly.com/question/7538238

#SPJ1

The velocity of the drum after the collision, given that a 2000 kg lorry moving with a speed of 50 Km/h collides with it, is 1280 Km/h

The following data were obtained from the question given above:

The law of conservation of linear momentum states as follow:

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

Inputting the given parameters, the velocity of the drum after the collision can be obtain as follow:

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(2000 × 50) + (25 × 0) = (2000 × 34) + (25 × v₂)

100000 + 0 = 68000 + 25v₂

Collect like terms

25v₂ = 100000 - 68000

25v₂ = 32000

Divide both sides by 25

v₂ = 32000 / 25

v₂ = 1280 Km/h

Thus, the velocity of the drum after collision is 1280 Km/h

Learn more about velocity after collison:

https://brainly.com/question/28151651

#SPJ1

Given data

The angular acceleration of the car is

The given time is t = 25 s

The expression for the angular displacement is given by the rotational equation of motion as

Substitute the values in the above expression as

Answer:

May be egg shaped

Has no new stars being formed.

Has almost no gas or dust between stars.

Explanation:

Elliptical galaxy is the collection of many stars which are bounded together gravitationally, which is smooth and ellipsoidal and shape and the appearance is featureless.

Elliptical galaxy is ovoid or spherical masses of stars.

It is found in galaxy clusters and compact galaxies.

It has no gas or dust between stars which result in low rates of star formation.

It is formed When two spirals collide, they lose their familiar shape, morphing into the less-structured elliptical galaxies.

Elliptical galaxy is made of old stars and have no gas and dust.

An example is elliptical galaxy m60 which shines brightly and is egg shaped.

Answer:

The principle of calorimetry signifies the “ law of conservation of energy. ”

Hence, this statement means that

the total amount of heat absorbed by the cold object is equal to the total amount of heat released by the hot object.

Answer:

in scientific notation 26500 is 2.65×10⁴

Answer:

2.56*10^4

26500

(We have to move the decimal 4 places)

2.6500*10^4

So the answer is 2.6500*10^4 or 2.56*10^4

Hope this helps! :)

Based on the research data, the psychologist can be 99% confident that the interval from 1.07 to 2.94 includes the unknown population mean µ.

A confidence interval is a range of values within which a researcher can be fairly certain that the true value of the mean can be found.

The confidence Interval of the survey above is calculated using the formula:

\( x ± z( σ/√n)\)

where

From the data provided;

x = 2.0

σ = 5.1

n = 200

z = 2.576 for 99% confidence

Therefore, the confidence Interval is:

\( 2.0 ± 2.576( 5.1/√200)\)

Confidence interval = 2.0 ± 0.93.

Therefore, the psychologist can be 99% confident that the interval from 1.07 to 2.94 includes the unknown population mean µ.

Learn more about confidence interval at: https://brainly.com/question/25779324

Answer:

Vf=3

Explanation:

you must first write your data

data before impact

M1=1000 M2=5000

V1=0 m/s V2 =0m/s

data after impact

M1=1000 M2=5000

V1=15m/s V2=?

M1V1 +M2V2=M1V1 +M2V2f

(1000)(0)+(5000)(0)=(1000)(15)+(5000)Vf

0=15000+5000Vf

- 15000÷5000=5000Vf÷5000

Vf= -3

Vf =3

The total momentum during a collision is conserved. Using this concept, the final velocity for the combined mass after the impact will be 2.4 m/s.

Momentum of a moving body is the product of its mass and velocity. The momentum during a collision is conserved. Thus, the sum of initial momentum of each body will be equal to the sum of final momentum of the two bodies.

Thus,  m1u1 + m2 u2 = m1 v1 + m2v2.

Where u and v be the initial and final velocities respectively.

Given that, mass of arrow = 1000 kg

velocity = 15 m/s

initial momentum = 1000 × 15 = 15000 kg m/s.

mass of wooden black = 5000 kg

initial velocity = 0

thus, initial momentum = 0

final momentum of the combined mass = (5000 + 1000 kg) v

then, 15000 kg m/s  + 0 = (5000 + 1000 kg) v

v = 2.4 m/s

Therefore, the common final velocity is 2. 4 m/s

To find more on momentum, refer here:

https://brainly.com/question/24030570

#SPJ2

If we replace the incandescent bulb with a voltage meter and return the loop to its original configuration, then moving the bar magnet back and forth through the loop will induce an electrical current in the loop, as described by Faraday's law of electromagnetic induction.

A magnet is a material or object that produces a magnetic field, which is a force that can attract or repel certain other materials, such as iron or steel. The magnetic field is created by the motion of electric charges within the magnet, which align in such a way that they produce a net magnetic field. Magnets can be made from a variety of materials, including iron, cobalt, nickel, and certain alloys. They come in many different shapes and sizes, including bars, discs, horseshoes, and rings.

Here,

The type of current that is generated depends on the direction and rate of the magnet's motion. If the magnet is moved back and forth with a constant speed and in a straight line, the current induced in the loop will be an alternating current (AC), because the direction of the current will reverse every time the magnet changes direction. This can be observed by the voltage meter reading a voltage that periodically changes in direction.

To know more about magnet,

https://brainly.com/question/30563158

#SPJ1

The activation energy for the diffusion process of Al in Al2O3 is approximately 225,744 J/mol.

To calculate the activation energy for the diffusion process of Al in Al2O3, we can use the Arrhenius equation:

D = D0 * exp(-Q/RT)

where D is the diffusion coefficient, D0 is a constant, Q is the activation energy, R is the gas constant, and T is the absolute temperature.

Taking the natural logarithm of both sides, we get:

ln(D/D0) = -Q/RT

We can then use the given diffusion coefficients and temperatures to obtain two equations:

ln(D1/D0) = -Q/RT1

ln(D2/D0) = -Q/RT2

where D1 and T1 are the diffusion coefficient and temperature at 1000C, and D2 and T2 are the diffusion coefficient and temperature at 1500C.

Taking the ratio of the two equations, we get:

ln(D2/D1) = Q/R * (1/T1 - 1/T2)

Solving for Q, we get:

Q = -R * ln(D2/D1) / (1/T1 - 1/T2)

Plugging in the given values, we get:

Q = -8.314 J/mol-K * ln(2.48 x 10^-14 m^2/s / 7.48 x 10^-23 m^2/s) / (1/1273 K - 1/1773 K)

Q ≈ 225,744 J/mol

Therefore, the activation energy for the diffusion process of Al in Al2O3 is approximately 225,744 J/mol.

For more question on activation energy

https://brainly.com/question/15083463

#SPJ11

The length of the pendulum is (B). 2.30 meters is correct option.

A weight suspended from a pivot such that it can freely swing is called a pendulum. Gravity's restoring force will cause a pendulum to accelerate back towards its equilibrium position if it is sideways moved from its resting, equilibrium position.

The period of a simple pendulum is given by the formula:

T = 2π√(L/g)

where T is the period of the pendulum, L is the length of the pendulum, and g is the acceleration due to gravity.

We can rearrange this formula to solve for L:

L = (gT²)/(4π²)

Substituting the given values, we get:

L = (9.81 m/s²)(3.17 s)²/(4π²) = 2.30 m

Therefore, the length of the pendulum is approximately 2.30 meters.

So the answer is (B) 2.30 m.

To know more about pendulum

https://brainly.com/question/30881356

#SPJ1

Answer: c

Explanation:

Answer:

answer c

Explanation:

Answer:

change in kinetic energy of the trolley is 53.91 J.

Explanation:

mass of the trolley, m = 5.0 kg

initial velocity of the trolley, u = 1.0 m/s

external force on the trolley, F = 25 N

time of force action, t = 0.75 s

The final velocity of the trolley at the end of 0.75 s is calculated as follows;

\(F = \frac{m(v-u)}{t} \\\\25 = \frac{5(v-1)}{0.75}\\\\5(v-1) = 18.75\\\\v-1 = \frac{18.75}{5} \\\\v-1 = 3.75\\\\v = 4.75 \ m/s \ in \ the \ direction \ of \ the \ applied \ force\)

The change in kinetic energy of the trolley is calculated as;

Δ K.E = ¹/₂m(v² - u²)

Δ K.E = ¹/₂ x 5(4.75² - 1²)

Δ K.E = 53.91 J.

Therefore, change in kinetic energy of the trolley is 53.91 J.

Answer:

Explanation:

3.  answer is d.

Displacement increases b/c slopes of both lines are positive. Spring 1 displaces more than Spring 2 per unit force applied.  Graphs are straight lines, so the increase is proportional.

4.  Fnet = 5 - 30 - 5 = -30 N       Positive direction is to the right, negative direction is to the left.

answer is d. 30 N to the LEFT

Following are the answers:

1. To calculate the pressure exerted by the water column on the surface of the mercury, we can use the formula:

Pressure = force/area

The force is the weight of the water column and the area is the cross-sectional area of the container.

The weight of the water column is given by the mass of the water times the acceleration due to gravity:

mass = density x volume

volume = area x height

So, mass = density x area x height = 1000 kg/m^3 x pi x (0.025 m)^2 x 0.25 m = 0.196 kg

Weight = mass x acceleration due to gravity =\(0.196 kg * 9.8 m/s^2\) = 1.92 N

The cross-sectional area of the container is pi x (0.025 m)^2 =\(0.196 m^2.\)

So, Pressure = force/area = \(1.92 N/0.196 m^2 = 9.79 N/m^2\) or 9.79 Pa

2. To calculate the density of the oil, we can use the formula:

density = mass/volume

Since the height of the oil column is 0.92 m and the cross-sectional area of the container is 0.196 m^2, the volume of the oil column is 0.196 m^2 x 0.92 m = 0.18012 m^3.

We do not know the mass of the oil, but we can calculate it using the pressure exerted by the oil column on the surface of the mercury:

Pressure = force/area = density x acceleration due to gravity x height

So, density = Pressure/ (acceleration due to gravity x height) = 9.79 N/m^2 / (9.8 m/s^2 x 0.92 m) = 1060 kg/m^3.

Learn more about pressure, here:

https://brainly.com/question/14356467

#SPJ1

Answer:

Momentum is computed using below formula.

Momentum = Mass x Velocity,

The problem states that the final velocity is 6.0m/s, Substituting onto the equation we have

Momentum = 1000 kg x 6.0 m/s = 6000 kg · m/s

Explanation:

hope it help ;)

The final momentum of the car is the product of its mass and final velocity. The final momentum of the car of 1000 kg with the final velocity of 6 m/s is 6000 kg m/s.

Momentum of an object is its ability to bring the force to make the maximum displacement. In physics, momentum is the product of mass and velocity of the object.

The initial velocity of the car = 2 m/s

mass = 1000 kg

final velocity = 6 m/s.

The acceleration of the car when changing from a velocity of 2 to 6 m/s within 5 seconds is:

a = Δv/t = 4 m/s/5 s = 0.8 m/s²

The final momentum of the car = mass × final velocity

P = 1000 kg × 6 /s = 6000 kg m/s.

Therefore, the final momentum of the car is 6000 kg m/s.

Find more on momentum:

https://brainly.com/question/13767949

#SPJ6

Answer:

D. Push Factor

Explanation:

Weather hazards and natural disasters are horrendously negative things that people actively seek to avoid; they make people want to leave or depart from an area in order to escape them. As such, they are considered push factors.

(Weather hazards and natural disasters are not pull factors because when discussing push vs pull we are specifically describing the mentioned factor. This aspect is not considered both because the migration factor mentioned in this question actively makes people want to move to any area that avoids their issue. Remember that pull factors make people want to move to a specific place for a unique advantage, while push factors make people want to move to any general place for a common advantage.)

Explanation:

v=12/0.45

=26.67 or 26.666ms-1