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yaroslaw [1]
4 years ago
6

A town is considering building a biodiesel power plant that would burn biomass to generate electricity. Which of the following c

orrectly lists an advantage and a disadvantage of this project?
A) Advantage: it could help get rid of unwanted waste. Disadvantage: there is no way to use the electricity created.
B) Advantage: it reduces dependence on fossil fuels. Disadvantage: it would emit pollution into the air.

C) Advantage: it is a commonly used energy source. Disadvantage: building the plant would attract new people to the area.

D) Advantage: it would use energy from the sun and wind. Disadvantage: it is a non-renewable source of energy.
Physics
1 answer:
zmey [24]4 years ago
3 0

Answer: it reduces dependence on fossil fuels. Disadvantage: it would emit pollution into the air.

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A 6 V battery is connected to a 24 ohm resistor to create a circuit. The 6 V battery is then replaced with a 12 V battery. How d
11Alexandr11 [23.1K]

Answer:

1.) The current is doubled

2.) moving a magnet up and down near the wire

3.) An electric current in the wire produces a magnetic field.

4.) Distance between Particles (m)

Explanation:

1.) When 6 V battery is connected to a 24 ohm resistor to create a circuit, using ohms law, V = IR

Current I = 6/24 = 0.25 A

When the The 6 V battery is replaced with a 12 V battery,

Current I = 12/24 = 0.5 A

Therefore, The current is doubled

2.) Electric current will be induced when moving a magnet up and down near the wire

3.) An electric current in the wire produces a magnetic field.

4.) Distance between Particles (m)

The force of attraction between two different masses is inversely proportional to the square of the distance between them.

6 0
4 years ago
Calculate the acceleration of a turtle going from 0.3 m/s to 0.7 m/s in 30 seconds.
uysha [10]
  • Initial velocity=u=0.3m/s
  • Final velocity=v=0.7m/s
  • Time=t=30s

\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}

\\ \sf\longmapsto Acceleration=\dfrac{0.7-0.3}{30}

\\ \sf\longmapsto Acceleration=\dfrac{0.4}{30}

\\ \sf\longmapsto Acceleration=0.01m/s^2

7 0
3 years ago
The parking brake on a 1200kg automobile has broken, and the vehicle has reached a momentum of 7800kg.m/s. What is the velocity
liraira [26]

Answer:

Velocity of the vehicle (v) = 6.5 m/s

Explanation:

Mass of automobile (m) = 1200 kg

Momentum of vehicle (p) = 7800 kg m/s

By using formula of momentum:

\rm p = mv \\  \rm 7800 = 1200 \times v \\  \rm v =  \frac{7800}{1200}  \\  \rm v = 6.5  \: m {s}^{ - 1}

8 0
3 years ago
Think back to coulomb's law. two coins with identical charges are placed on a lab table 1.35 m apart.
ziro4ka [17]

The Coulomb’s law is expressed mathematically as:

F = k * q1 * q2 / d^2

Where,

F = force of attraction between 2 particles = 2.0 N

<span> k = Coulomb’s constant = 8.988 * 10^9 N m^2 / C^2</span>

q = charge of the particle

d = distance between the 2 particles = 1.35 m

 

Since the two coins have identical charges therefore q1 = q2 =q

F = k* q^2 / d^2

2.0 N = (8.988 * 10^9 N m^2 / C^2) * q^2 / (1.35 m)^2

q = 2.01 * 10^-5 C

<span>Therefore each coins have charges equivalent to 2.01 * 10^-5 C.</span>

4 0
4 years ago
What is the average velocity of atoms in 1.50 mol of neon (a monatomic gas) at 278 K? For m, use 0.01500 kg. Remember that R = 8
bekas [8.4K]

Answer:

B. 832 m/s

Explanation:

(1/2) (0.015) v^2 = (3/2) (1.5) (8.31) (278)

0.0075 v^2 = 5197.905

v^2 = 693054

v = 832.49

5 0
3 years ago
Read 2 more answers
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