fort20, the velocity ofaparticle moving along the x-axis is given by v(t)=t- 6t 10t–4. at what timetdoes the direction of motion of the particle change from right to left?

Answer:

Disminuye la energía y la temperatura internas.

Explanation:

translation:

it decreases the internal energy and temperature

The time it takes Jane to catch up with Don if Jane is traveling at 10 k.p.h and don at 6 k.p.h is: 2.5 h

The formula and procedure we will use to solve this problem is:

Tr = x/(v2-v1)

Where:

Information about the problem:

Applying the reach time formula we get:

Tr = x/(v2-v1)

Tr = 10 km/(10 km/h- 6 km/h)

Tr = 10 km/(4 km/h)

Tr = 2.5 h

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

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Answer:

When several resistors are connected in series, the total resistance equals the sum of the individual resistors. In series combination, the current is same through each resistor.

1)   V=  60 volt

Total resistance R = R₁ + R₂

                              = 20 + 10

                              = 30 Ω

2) Ohms law states that,

           \(\sf I =\dfrac{V}{R}\\\\\\I = \dfrac{60}{30}\\\\I = 2 \ A\)

3) Voltage around 10 Ω resistor,

          V₂ = I R₂

             = 2 * 10

              = 20 volt

___________________________________________________

4) Total current = 1 A

5) Total voltage = 8 volt

6) Voltage around R₁ is V₁

              R₁ = 2 Ω  ; I = 1 A

              V₁ = IR₁

                   = 1 * 2

                   = 2 volt

7) Resistance 2:

        Total resistance = R

        Total voltage = V = 8 volt

        Total current = I = 1 A

                  \(\sf R = \dfrac{V}{I}\\\\\\ R = \dfrac{8}{1}\\\\\)

                  R = 8 Ω

               R₁ + R₂ = 8 Ω

                2 + R₂ = 8

                      R₂  = 8 - 2

                      R₂ = 6 Ω

8)Voltage around R₂:

                  \(\sf V_2 = IR_2\\\\V_2 = 1*6\\\\\)

                  V₂ = 6 volt

9) Total R = 8 Ω

_________________________________________________

10) Total V = 12 volt

11)  Total R = 8 + 8

                 = 16 Ω

12) Total current I,

                \(\sf I = \dfrac{V}{R}\\\\I = \dfrac{12}{16}\\\\I = 0.75 \ A\)

13) Voltage at each resistor:

           V₁ = I*R₁

               = 0.75 * 8

               = 6 volt

         V₂ = I*R₂

              = 0.75 * 8

             = 6 volt

_______________________________________________________

     14) Total R =   40 + 20

                       = 60 Ω  

15) To find V₁, first find total voltage.

           I = 2 A ;  R = 60 Ω  

           V = IR    

              = 2 * 60

               = 120 V

        V₁ + V₂  =V

        V₁ + 80 = 120

                V₁ = 120 - 80

                 V₁ = 40 volt              

The power plant produces 2,539.1 kW of power.

We can start by calculating the amount of heat absorbed by the power plant from the ocean at the surface:

Q_H = m*Cp*ΔT_H

where Q_H is the heat absorbed, m is the mass flow rate of water, Cp is the specific heat capacity of water, and ΔT_H is the temperature difference between the ocean surface and the power plant.

Q_H = (839 kg/s)*(4.18 J/(g·°C))*(30 °C - 5 °C)

Q_H = 101,562.2 kW

Similarly, we can calculate the amount of heat released by the power plant to the ocean at a depth of 2100 ft:

Q_C = m*Cp*ΔT_C

where Q_C is the heat released, ΔT_C is the temperature difference between the power plant and the ocean at a depth of 2100 ft.

ΔT_C = 3.4 °C

Q_C = (839 kg/s)*(4.18 J/(g·°C))*(3.4 °C)

Q_C = 11,575.2 kW

The efficiency of the power plant is given as 2.5%, which means that the power generated is:

η = W/Q_H

where η is the efficiency, W is the power generated, and Q_H is the heat absorbed.

W = η*Q_H

W = (0.025)*(101,562.2 kW)

W = 2,539.1 kW

Therefore, the power plant generates 2,539.1 kW of power.

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The image given, is explained in terms of Newton's 1st law of motion.

Based on Newton's First Law of Motion (Inertia).  An object at rest remains at rest, and an object in motion continues in motion at a steady speed and in a straight path until operated on by an unbalanced force.

Newton's first rule of motion states that if a pan of water were being moved along a track, the water would tend to keep moving ahead. However, the water will appear to splash to the right while it goes to the left. Space is nearly a perfect vacuum, devoid of both gravity and matter. Think about a satellite travelling 17,500 mph around the Earth. If a rock were to be launched from the satellite, it would orbit the earth adjacent to the satellite at a speed of 17,500 mph.

Here, in the given image, it is shown that the sofa is remain in the place unless a person forcefully move it from one place to another.

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The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

For instance, 50 km/hr west denotes the velocity of a car whereas 50 km/hr (31 mph) denotes the speed at which it is moving down a route.

The average speed of an object is determined by dividing the distance traveled by the amount of time it takes the object to reach the distance.

Therefore, The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

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1.coriolis effect!

2. eye of the storm!

3. warm ocean water!

these should be correct!

Answer:I just did it

Explanation:sorry it’s late

Answer:

4,000

Explanation:

Answer:

2000

Explanation:

Answer:

2000

Explanation:

well it is just   20 * 100 = 2000 v

Water is not wet itself or it does not make things wet. The water makes bond with the other materials through adhesive forces.

Wetness is a description of the experience of water, it is a quality of the liquid water. Liquid water is not itself wet, however it cannot even make things actually wet. Wetness is the ability of a liquid to adhere to the surface of a solid material, so when we say that something is wet, we mean that the liquid material is sticking to the surface of a material.

An adhesion is present between two things and something that the water molecules cannot do to itself. Water has to be wetted by something else or it makes no sense at all. Water can be wetted easily by oil or another foreign liquid, however it cannot wet itself.

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Answer:

No

Explanation:

The ball dose not have any kinetic energy or potential. Nothing is in motion or stored.

Answer:

165 kPa

Explanation:

Absolute pressure is:

P = Patm + ρgh

where Patm is the atmospheric pressure,

ρ is the density,

g is acceleration due to gravity,

and h is the depth.

P = 101,300 Pa + (1000 kg/m³) (9.8 m/s²) (6.50 m)

P = 165,000 Pa

P = 165 kPa

Answer:

Displacement, d = 10 km

Explanation:

It is given that,

Distance covered by the bus in east direction is 6 km and the distance covered by the bus in south direction is 8 km.

We need to find the resultant displacement. Displacement is the shortest path covered by an object. It can be given by :

\(d=\sqrt{6^2+8^2} \\\\d=\sqrt{36+64}\\ \\d=10\ km\)

So, the displacement of the bus is 10 km.

Answer:a licensed physician

Explanation: taking the osha test now.

A licensed physician is the one to carry out a post-exposure medical evaluation. (Option A)

Post-exposure Medical Evaluation is any medical evaluation started after exposure to a pathogen in order to prevent the infection from occurring.

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Answer:CcCcccccc

Explanation:

Rfsgqh

The total voltage drop for the entire circuit is calculated as 45.00 V.

Amount of voltage loss that happens through all or part of circuit due to impedance is called as voltage drop.

When resistors are connected in series, the total resistance is the sum of individual resistances, i.e., R = R1 + R2.

For 5.00 Ω resistor, the voltage drop is V1 = IR1 = (3.00 A)(5.00 Ω) = 15.00 V.

For 10.0 Ω resistor, the voltage drop is V2 = IR2 = (3.00 A)(10.0 Ω) = 30.00 V.

Total voltage drop for the entire circuit is the sum of the voltage drops across each resistor:

V = V1 + V2 = 15.00 V + 30.00 V = 45.00 V.

Therefore, the total voltage drop for the entire circuit is 45.00 V.

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Answer:

hjiuhimnmuyy8 ny87ny7y7y

Explanation:

Answer:

i cant even see that no one can i will answer it if u can make it bigger

Explanation: eyes

The energy needed to heat 250 g of water from 10.0°C to 85.0 °C IS 1.88 x 10⁴ cal. Therefore, the answer is (b) 1.88x10⁴ cal.

To calculate the energy needed to heat 250 g of water from 10.0°C to 85.0 °C, we need to use the formula:

Q = m x c x ΔT

Where Q is the energy needed (in joules), m is the mass of water (in kilograms), c is the specific heat of water (in joules per kilogram per Kelvin), and ΔT is the temperature change (in Kelvin).

First, we need to convert the mass of water from grams to kilograms:

m = 250 g / 1000 = 0.25 kg

Next, we need to calculate ΔT:

ΔT = 85.0 °C - 10.0°C = 75.0 K

Now, we can substitute these values into the formula:

Q = 0.25 kg x 4186 J/kg K x 75.0 K

Q = 7.85 x 10⁴ J

To convert this to calories, we need to divide by 4.184:

Q = 1.88 x 10⁴ cal

Therefore, the answer is (b) 1.88x10⁴ cal.

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Answer:

Relative velocity is nothing but the velocity of one body with respect to the velocity of some other body.  

Explanation:

Relative velocity may be defined as the rate at which the change of separation takes place between any two object.The relative velocity of any object A w.r.t. another object B when they are in motion is nothing but the rate of change of their position from one another.

Now, let the velocity of object A be  \($ v_A$\)

         and velocity of object B is \($ v_B$\)

Therefore, relative velocity of a object A when compared to the velocity of object B is given by \($v_{AB}=v_A - v_B$\).

The angle of refraction θa will be smaller than the angle of incidence θw.

When light passes from one medium to another, it undergoes a phenomenon known as refraction. The angle at which the light ray enters the second medium is called the angle of incidence (θi), and the angle at which it emerges from the second medium is called the angle of refraction (θr). In this case, the light is passing from water to plastic.
To find the angle at which the light emerges from the plastic (θa), we can use Snell's Law, which states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities of light in the two media.
Mathematically, this can be written as:
sin(θi) / sin(θr) = v1 / v2
Given that the light strikes the plastic from the water at an angle θw, we can use the relationship between the angles of incidence and refraction:
sin(θw) / sin(θa) = vwater / vplastic
Now, assuming that the light travels faster in water than in plastic, the ratio of velocities will be greater than 1. Therefore, the angle of refraction θa will be smaller than the angle of incidence θw. In other words, the light will bend towards the normal as it enters the plastic.

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Science-based research is best suited to define the process of developing technologies that can be utilized to assist structures' survival activities. Option C is correct.

An approach to research where an issue is first recognized and then hypotheses that claim to be able to fix it are developed or tested using observations, and experiments.

Inventing technology that can be used to help buildings withstand activity is best described as a scientific endeavor.

Hence, option C is correct.

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Given

The electric flux is

Radius of the sphere,

To find

a. The flux through a gaussian sphere with radius of 29.0 cm.

b. The magnitude of the charge

Explanation

a. Since the gaussian sphere covers the same charge so the electric flux through both the sphere will be same.

Thus the required flux is

b.

The magnitude of the charge is

Conclusion

a. The flux is

b. The charge is

When high voltages are present, a glow may be seen around sharp points, known as corona discharge.

This glow is caused by the ionization of the air molecules near the sharp point due to the electric field strength. The ionized air molecules emit light, creating a visible glow. The intensity and color of the glow depend on the voltage level and the gas composition of the surrounding environment.

Corona discharge is a phenomenon that occurs when high voltages are applied to a conductor, especially in the presence of a sharp point or a high electric field. It results in the ionization and excitation of the surrounding air molecules, creating a glowing or visible aura of light around the conductor. The ionized air can also produce a hissing or crackling sound. Corona discharge is often observed in high-voltage power lines, antennas, and other high-voltage equipment. It is important to note that corona discharge can cause power loss and interfere with the proper functioning of electrical systems, so efforts are made to minimize its occurrence in high-voltage applications.

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Answer:

Walking, Running , Hopping, Jumping, Leaping

Explanation:

Because they made you move from one place to another