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aliya0001 [1]
4 years ago
6

PLZ HELP ME The stored energy in organic matter or wastes is called biomass energy and when burned can be used to produce therma

l energy used for cooking, heating homes or generating electricity.
Question 4 options:

True

False
Physics
1 answer:
Softa [21]4 years ago
3 0

Answer:  

True: The stored energy in organic matter or wastes is called biomass energy and when burned can be used to produce thermal energy used for cooking, heating homes or generating electricity.

Explanation:

For Household Needs, biomass is utilized for home heating or for cooking purposes. In that case the most common source for fuel is wood, but there are also other substances are used. Latest wood-stoves designs are made in an effective way for heating and cooking needs. With the help of those new technologies fuel consumption is decreased to a significant amount.

Humans have been using biomass energy since ages for cooking their food and heating homes by burning woods. Biomass energy can be used in homes for heating or cooking or in industries large power plants to produce electricity

What is Biomass Energy? Biomass consists of energy in stored form taken from the sun. In photosynthesis plants take energy from sun. By burning biomass the energy emitted in result can be used for heating purposes. There are many types of biomass energy made by either burning or by converting it into liquids or gas, called Bio-fuels and Bio-gas.    

Summary:

No doubt Biomass contribute in air pollution formation but it is less than the pollution caused by certain gases and fossils fuels which produce sulfur resulting in acidic rain and polluting our environment.    

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A -turn rectangular coil with length and width is in a region with its axis initially aligned to a horizontally directed uniform
madam [21]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The maximum emf is \epsilon_{max}= 26.8 V

The emf induced at t = 1.00 s is \epsilon = 24.1V

The maximum rate of change of magnetic flux is   \frac{d \o}{dt}|_{max}  =26.8V

Explanation:

    From the question we are told that

        The number of turns is N = 44 turns

          The length of the coil is  l = 15.0 cm = \frac{15}{100} = 0.15m

          The width of the coil is  w = 8.50 cm =\frac{8.50}{100} =0.085 m

          The magnetic field is  B = 745 \ mT

          The angular speed is w = 64.0 rad/s

Generally the induced emf is mathematically represented as

        \epsilon = \epsilon_{max} sin (wt)

 Where \epsilon_{max} is the maximum induced emf and this is mathematically represented as

            \epsilon_{max} = N\ B\ A\ w

Where \o is the magnetic flux

            N is the number of turns

             A is the area of the coil which is mathematically evaluated as

             A = l *w

        Substituting values

           A = 0.15 * 0.085

               = 0.01275m^2

substituting values into the equation for  maximum induced emf

         \epsilon_{max} = 44* 745 *10^{-3} * 0.01275 * 64.0

                 \epsilon_{max}= 26.8 V

 given that the time t = 1.0sec

substituting values into the equation for induced emf  \epsilon = \epsilon_{max} sin (wt)

      \epsilon = 26.8 sin (64 * 1)

        \epsilon = 24.1V

   The maximum induced emf can also be represented mathematically as

              \epsilon_{max} = \frac{d \o}{dt}|_{max}

  Where  \o is the magnetic flux and \frac{d \o}{dt}|_{max} is the maximum rate at which magnetic flux changes the value of the maximum rate of change of magnetic flux is

         \frac{d \o}{dt}|_{max}  =26.8V

8 0
3 years ago
Explain briefly how the following phenomena happen on Earth, relating your answers to the theory of plate tectonics
Elenna [48]

Answer:

  1. Earthquakes occurs due to the sudden shaking of the earth, produced due to the collision of plates.
  2. Continental drift is the theory that describes how continents moves from one place to another with respect to a fixed point. Plate tectonic movement is responsible for this drift.
  3. When two continental plate collides, sandwich pattern forms, which leads to the mountain building processes. For example, the Himalaya.
  4. When collision takes place between an oceanic plate and a continental plate, the oceanic plate being more denser gets subducted below the comparatively less dense continental plate, producing volcanoes, where extensive volcanic eruptions takes place.
  1. When two oceanic plate collides, the denser oceanic plate gets subducted beneath the less denser one, thereby creates an island arc or  chain of island. For example, the Hawaiian island chain.

All the above phenomenon are directly related to the plate tectonic movement.

7 0
3 years ago
A bar of soap has a mass of 53.65 grams and its dimensions are 4.6cm by
steposvetlana [31]

Answer:

don't know

Explanation:

4 0
3 years ago
What are the three controls on an automobile that cause it to accelerate?
Vaselesa [24]

-- The "gas" pedal causes the car to move faster.

-- The brake pedal causes the car to move slower.

-- The steering wheel causes the direction of the car's motion to change.

Any of these three phenomena is an "acceleration".

4 0
3 years ago
You are working in the movie industry. The director of a western film has come up with an impressive stunt and has asked you to
Delicious77 [7]

Answer:

  x = 10.53 m

Explanation:

Let's analyze this problem a bit, the time that the cowboy must take to fall must be the time that the horse takes to arrive

Let's start by looking for the cowboy's time, which starts from rest and the point where the chair is is y = 0

           y =y₀ + v₀ t - ½ g t²

           0 = y₀ - ½ g t²

           t = \sqrt{ \frac{2 y_o}{g} }

we calculate

           t = √(2 3.22 / 9.8)

           t = 0.81 s

the horse goes at a constant speed

           x = v_{c} t

           x = 13 0.81

           x = 10.53 m

this is the distance where the horse should be when in cowboy it is left Cartesian

3 0
3 years ago
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