A train is traveling at a speed of 50km/hr. How.many hours will it take the train to travel 800 km?

Answer: 1. The movie one is virtual and the bathroom mirror is real

2. The image is distorted in a way

3. Behind the spoon

Explanation:

The movie one is virtual and the bathroom mirror is real and The image is distorted in a way and Behind the spoon.

In virtual desktops, the desktop environment is segregated from the physical device being used to access it. They are preloaded images of operating systems and apps. Over a network, users can remotely view their virtual desktops.

A virtual desktop can be accessed from any endpoint device, including a laptop, smartphone, or tablet. The user interacts with the client software that was installed on the endpoint device by the virtual desktop provider.

A virtual desktop mimics the appearance and feel of a real workstation. Because robust resources, like storage and back-end databases, are easily accessible, the user experience is frequently even better than that of a physical workstation.

Therefore, The movie one is virtual and the bathroom mirror is real and The image is distorted in a way and Behind the spoon.

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The two viable solutions to the management of spent nuclear fuel are underground deposit or reprocessing of fuel rods. Following are the statements which are stands true and also have its justification.

There are several potential benefits and drawbacks to both underground storage and reprocessing as options for managing spent nuclear fuel. Here are some possible statements about these two options: Underground storage is a long-term solution for managing spent nuclear fuel: This statement is generally true. Underground storage involves placing the spent nuclear fuel in a deep underground repository where it will be isolated from the environment for a very long period of time. This can provide a safe and secure way to store the fuel while it decays and becomes less radioactive over time Reprocessing of fuel rods reduces the volume of spent nuclear fuel: This statement is generally true. Reprocessing involves chemically separating the usable fuel components (such as uranium and plutonium) from the waste products of nuclear reactions. This can significantly reduce the volume of the spent fuel, making it easier to store or dispose of. Underground storage is more expensive than reprocessing: This statement is not necessarily true. The cost of underground storage and reprocessing can vary significantly depending on factors such as the type of fuel, the location of the repository or reprocessing facility, and the regulatory and technical challenges involved.

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Answer:

Explanation:

Given:

a = - 20.5 m/s²  (Hockey player brakes)

t = 0,4 s

V = 0 m/s (Hockey player stopped)

______________

V₀ - ?

V  = V₀ + a·t

Initial velocity:

V₀ = V - a·t

V₀ = 0 - (-20.5)·0.4 = 20.5·0.4 = 8.2 m/s

V₀   ≈ 30 km/h

Answer:

The speed after 2 seconds is 14.4 m/s

Explanation:

Vertical Launch Upwards

In a vertical launch upwards, an object is launched vertically up from a height H without taking into consideration any kind of friction with the air.

The speed changes from an initial value vo to a final value vf, given by:

\(v_f=v_o-g.t\)

Where g is the gravitational acceleration (\(9.8\ m/s^2\))

The tennis ball is shot up with an initial speed of vo=34 m/s. We are required to find the final speed at t=2 s:

\(v_f=34-9.8*2\)

\(v_f=14.4\ m/s\)

The speed after 2 seconds is 14.4 m/s

the velocity after 2 seconds of launch is 14.4 m/s

the initial velocity(a) is 34m/s

the time(t) is 2 seconds

acceleration(a) due to gravity is 9.8g

the formula is

v= u - at

v= 34 -(9.8)(2)

= 34 - 19.6

= 14.4 m/s

hence the final velocity is 14.4 m/s

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The magnitude of the electrostatic repulsive force between the larger charge and the smaller charge is 101.25 μN, and the total electric field between Q₁ and Q₂ is  1.3 × 10⁶. directed towards Q₂.

The electrostatic force is the force of attraction or repulsion between two charged particles, which is caused by the interaction of their electric fields. It is proportional to the magnitude of the charges and inversely proportional to the distance between them and is described by Coulomb's law.

(a) The electrostatic force between two point charges is given by Coulomb's law:

F =  k ×  ( q₁  × q₂) / r²

where

F is the magnitude of the force,

k is Coulomb's constant  (k  = 9.0 × 1 0⁹ N  m² / C²),

q₁ and q₂ are the charges of the two particles, and r is the distance between them.

In this case,

q₁ = +15 nC =  +15  ×  10⁻⁹ C

and

q₂ = +3.0nC = +3.0 × 10⁻⁹ C,

and

r = 40 cm = 0.4 m.

Substituting these values into Coulomb's law, we get:

F = (9.0 × 10⁹)  ×  [(+15 × 10⁻⁹) ×  (+3.0 × 10⁻⁹)]  /  (0.4)²

F ≈  101.25 × 10⁻⁶ N

Therefore, the magnitude of the electrostatic repulsive force between the larger charge and the smaller charge is approximately    101.25  μN.

(b)

The electric field due to each charge at the given point is given by Coulomb's law:

E = k × (q / r²)

where

E is the magnitude of the electric field

k is Coulomb's constant  ( k = 9.0 × 10₉ N m² / C²),

q is the charge, and r is the distance between the charge and the point of interest.

For Q₃,

q = +3.0nC = +3.0 × 10⁻⁹ C,

and

r = 10 cm = 0.1 m.

Substituting these values into Coulomb's law, we get:

E₃ = (9.0 × 10⁹) ×  [(+3.0 × 10⁻⁹) / (0.1)²]

E₃ ≈ 2.7 × 10⁶ N/C      (directed towards Q₃)

For Q₂,

q = -4.0nC = -4.0 × 10⁻⁹ C,

and

r = 30 cm = 0.3 m.

Substituting these values into Coulomb's law, we get:

E₂ = (9.0 × 10⁹) * [(-4.0 × 10⁻⁹) / (0.3)²]

E₂ ≈ -4.0 × 10⁶ N/C   (directed towards Q₂)

The total electric field at the point of interest is the vector sum of the electric fields due to each charge:

Etotal = E₃ + E₂

Etotal ≈ -1.3 × 10⁶ N/C

So, the total electric field at the point that is  10 cm from  Q₃  and  30 cm from Q₂ and lies between  Q₁ and  Q₂ is approximately  1.3 × 10⁶ N/C, directed towards  Q₂.

Therefore, The magnitude of the electrostatic repulsive force between the larger charge and the smaller charge is  101.25 μN, and the total electric field between Q₁ and Q₂ is  1.3 × 10⁶. directed towards Q₂.

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The  Force acting on charge A will be 0.036N.

Coulomb's law is the force of attraction or repulsion acting on straight line is directly proportional to the charge place on that line and inversly proportional to the square of seperation between them.  

F= kq1q2/r²

where F is the electrostatic force ,q are the point charges , K is coulomb constant , r is seperation between the charges.

Value of Coulomb's constant is 8.98×10⁹Nm²/C².

In the question ,we have given the sides of the triangle ,we can consider them as seperation also ,

r=5cm = 5×10-²m

the charge is 10-⁷C.

F= 9×10⁹×1×10-¹⁴/25×10-⁴

F= 0.036N

So, the force acting on Charge A is

0.036 N.

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Answer: The force that pushes a plane upwards is the lift generated by the wings as the plane moves through the air. The lift force is created by the difference in air pressure above and below the wings, which creates an upward force that opposes the weight of the plane.

Point C would the greatest

The original temperature of the mercury is 260.6K

To solve this problem, we can use the formula for the heat released during the solidification of a substance:

Q = m * Lf

where Q is the heat released, m is the mass of the substance, and Lf is the heat of fusion of the substance.

In this case, Q = 157 kJ, m = 5.00 kg, and Lf = 11.3 kJ/kg.

We also need to use the formula for the heat absorbed or released during a temperature change:

Q = m * c * ΔT

where Q is the heat absorbed or released, m is the mass of the substance, c is the specific heat of the substance, and ΔT is the change in temperature.

We can use this formula to calculate the heat released as the mercury cools from its original temperature to its melting point, and then use the formula for solidification to calculate the heat released as the mercury solidifies.

Let T be the original temperature of the mercury.

The heat released as the mercury cools from its original temperature to its melting point is:

Q1 = m * c * (T - 234)

The heat released as the mercury solidifies is:

Q2 = m * Lf

The total heat released is:

Q = Q1 + Q2 = m * c * (T - 234) + m * Lf

Substituting the values given in the problem, we get:

157 kJ = 5.00 kg * 140 J/kg . K * (T - 234) + 5.00 kg * 11.3 kJ/kg

Simplifying and solving for T, we get:

T = 260.6 K

Therefore, the original temperature of the mercury was 260.6 K.

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Answer:

An ohmic conductor is defined as one which obeys ohm's law that is V ∝ I where is the voltage and is the current. There must be a linear graph. Silver is an example of an ohmic conductor as the graph for silver is a linear graph. Silver and copper are some examples of ohmic conductor

Answer: Here you go, i hope this kinda helps.

Explanation:Disambiguation is just a fancy way of saying "asking clarifying questions".

Watson Assistant replies to user's questions based on a confidence score.

Sometimes the customer's question could be interpreted in two or three different ways.

For example, if you say you'd like to "book a table for 8", the assistant is able to ask a clarifying question:

Did you mean booking a table for 8PM, 8AM, or booking a table for 8 guests?

Watson Assistant will ask the question when its confidence score is divided between a few options to ensure that your customers get exactly the right service they need.

False. UHS does not do business with, hire, or bill for service rendered to excluded or debarred individuals or entities.

Entities are objects, people, places, events, or concepts that are represented within a system or database. They can be physical or abstract, and can be represented in a variety of different ways. For example, a customer in a database might be an entity, and its attributes such as name, address, and telephone number may be represented as individual entities. In a computer system, entities are used to represent data and act as a way to organize information. Entities are often linked with relationships, which are connections between different entities. This allows for data to be organized and accessed in a structured way. Entities can also be used to represent complex systems, allowing for easier manipulation and understanding. Entities are an important part of any database or system and play a major role in data management.

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Answer:

Cost = 165.6 cents = $1.656

Explanation:

First, we will calculate the total energy consumed by the bulb in a month:

\(E=Pt\\\)

where,

E = Energy Consumed = ?

P = power = 23 W

t = time = (1 month)(30 days/1 month)(24 h/1 day) = 720 h

Therefore,

\(E = (23\ W)(720\ h)\\E = 16560\ Wh = 16.56\ Kilowatt-hour\)

Now, the cost will be:

\(Cost = P(Unit\ Cost)\\Cost = (16.56\ kilowatt-hour)(10\ cents/kilowatt-hour)\)

Cost = 165.6 cents = $1.656

Answer:

Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.

Explanation:

Hope this helps!

Continents have undergone major shifts around 12 times.

To calculate the number of times continents have gone through major shifts in the 4.6 billion year history of the Earth, we can divide the total time span by the average duration between shifts.

Total time span = 4.6 billion years

Average duration between shifts = 395 million years

To convert the total time span to years, we multiply 4.6 billion by 1 billion (1 billion = 1,000 million).

Total time span in years = 4.6 billion years × 1 billion = 4.6 × 10^9 years

Now we can calculate the number of shifts by dividing the total time span by the average duration between shifts:

Number of shifts = Total time span / Average duration between shifts

               = (4.6 × 10^9 years) / (395 million years)

               ≈ 11.65

Therefore, continents of our planet have gone through major shifts approximately 11.65 times in the 4.6 billion year history of the Earth. Since we cannot have a fraction of a shift, we can round the result to the nearest whole number. Thus, continents have undergone major shifts around 12 times.

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Answer:

spring constant = 31.25N/m

Explanation:

spring constant = force/extension

mass = 250g = 0.25kg

extension = 8cm = 0.08m

force = mg = 0.25 x 10 = 2.5N

spring constant = 2.5/0.08 = 31.25N/m

Answer:

1

Explanation:

Answer:

maintaing control of direction and speed

Explanation:

took a test and got it right

Answer:

a)A-B =(1,0,-3) +(2,-5,-1) =(3, -5, -4);    

b)B-C =(-2-3, 5-1, 1-1) = (-5,4,0);  

c)-A +(B –C) = (-1,0,3) +(-5,4,0) =(-6,4,3);  

d) =(3,0,-9) –(6,2,2) = (-3, -2, -11);  

e) = (-2,0,6) +(-6,15,3) +(-3,-1,-1) =

d) = (2,0,-6) –(-5*3, 4*3, 0) =  

Explanation:

1)C=k*A = (k*a1, k*a2, k*a3);

2)C=-A = -1*A;

3)C= A+B = (a1+b1, a2+b2, c2+c2);

4)C=A-B =A +(-B);  

5)A+B=B+A;  

6)A+B+C =(A+B)+C =A+(B+C

Given,

Charge of one cup of lemonade, c=$1.50

The amount Jack needs, T=-$15.25

The number of cups Jack needs to sell in order to have the given amount can be calculated as,

On substituting the known values,

The number of cups of lemonade that can be sold should be a whole number. If Jack sells 10 cups, which is lesser than the answer, he will have less amount than he wanted.

Thus he has to sell 11 cups.

Therefore the minimum number of cups Jack needs to sell is 11.

Answer: I have all answers in screen shots

Hope this helps

Answer:

the speed bump would slows down the car 40% of most vehicles. speeding cars would deterred. this would result in fewer accidents.

According  to the question the spring compressed 7.3 cm to bring the toy car to a stop.

Spring is a season of renewal and rebirth. It is the period of time between winter and summer when days become warmer, plants and flowers begin to bloom, and the earth comes alive with new life. During spring, animals come out of hibernation, birds return from their winter migration and the sun stays in the sky for longer periods of time. Spring is a time of transformation and growth, when the earth is filled with color and beauty. It is a time for us to enjoy the outdoors, appreciate nature and appreciate the beauty of the world around us. Spring is a time to start anew, begin fresh projects and enjoy the beauty of the world.

The distance the spring compresses to bring the toy car to a stop can be calculated using the equation: x = (1/2k)mv^2, where x is the distance the spring compresses, k is the spring constant, m is the mass of the toy car, and v is the initial velocity. Substituting the given values, we get:

x = (1/2(700 N/m))(3.63 kg)(0.65 m/s)^2 = 7.3 cm

Therefore, the spring compressed 7.3 cm to bring the toy car to a stop.

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Answer:

2.8s

Explanation:

=>a = v-u/t

=> t = v - u / t

= 28-0 / 10

= 2.8 s

Answer:

I think it might be (a) if that helps

Answer:

a) 1.06*10^-5

b) 0.00105 °C^-1

Explanation:

Given that

Length of the cylinder, L = 1.5 m

Radius of the cylinder, r = 0.25 cm

Voltage across the rod, V = 15 V

I• at Temperature T• = 20° C is 18.5 A

I at Temperature T = 90° C is 17.2 A

See attachment for calculations

The car is moving with the linear velocity of 44.2 m/s.

We have the diameter of car wheels as 65 cm which are spinning at an angular velocity of 136 rad/s.

We have to determine how fast is the car moving or its linear velocity.

Angular velocity is defined as the rate of change of angular position of a rotating body.

\(\omega = \frac{d\theta}{dt}\)

According to question, we have -

diameter of car wheels = 65 cm

Therefore, the radius will be = 32.5 cm

Angular velocity = 136 rad/s

We know that -

v = r\(\omega\)

v = 32.5 x 136

v = 4420 cm/s

v = 44.2 m/s

Hence, the car is moving with the linear velocity of 44.2 m/s.

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The weight of the pasta is 113.4g.

The weight of an object is defined as the force of gravity acting on it, and it can be calculated by multiplying the mass by the acceleration of gravity, w = mg.

The formula for calculating an object's mass based on its weight is Mass is equal to Weight divided by Gravity's Acceleration Convert the weight in pounds to the equivalent weight in Newtons. Mass is measured in Newtons in the formula for calculating mass based on weight.

Given,

The plastic container weighs 56.7 g

Total weight is 170.1 g

Solution:

The weight of the pasta = Total weight - Plastic container's weight

= 170.1 - 56.7

= 113.4g

Therefore,

The weight of the pasta is 113.4g.

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Answer:

the answer would be be B cytoplasm

Answer:

No because sugar is more sweet and it would not have the benefits of salt. Think of it like how people used to put salt on meat to preserve it. Would they put sugar on? No they would not because salt is a combination of things that sugar does not have.

Explanation

Answer: at an angle !!

Explanation:

light refracts at an angle