1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lutik1710 [3]
3 years ago
9

Which of the following is a negative environmental impact of using solar

Physics
1 answer:
saw5 [17]3 years ago
7 0

Answer:c

Explanation:

You might be interested in
An astronaut with mass 84kg is at rest in space, before firing her water pack to move toward the shuttle. If the amount of water
Travka [436]

Answer:

The astronaut is moving at a speed of 0.238 m/s in a direction opposite the direction of the water shot out.

Explanation:

We are given;

Mass of astronaut; m1 = 84 kg

Mass of water shoot out; m2 = 2 kg

Initial speed of astronaut; u1 = 0 m/s

Initial speed of water shoot out; u2 = 0 m/s

Final speed of shoot out; v2 = 10 m/s

From law of conservation of momentum, we can say that;

Initial momentum = final momentum

Thus;

m1•u1 + m2•u2 = m1•v1 + m2•v2

Where v1 is the final speed of the astronaut

Plugging in the relevant values, we get;

(84 × 0) + (2 × 0) = (84 × v1) + (2 × 10)

0 = 84v1 + 20

-20 = 84v1

v1 = -20/84

v1 = -0.238 m/s

The negative sign indicates that the astronaut is moving 0.238 m/s in a direction opposite the direction of the water shot out.

4 0
2 years ago
4.) A hydroelectric dam runs water thru turbines that are connected to
omeli [17]

Answer:

Explanation:

A turbine and generator produce the electricity

"A hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity.

8 0
3 years ago
Which of the following is a major ocean on Earth?
yarga [219]
The Indian Ocean. 
The rest of your options are not oceans, they are bodies of water. (e.g: lakes,rivers,gulfs) 
3 0
3 years ago
Read 2 more answers
A box of oranges which weighs 83 N is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0
otez555 [7]

The given question is incomplete. The complete question is as follows.

A box of oranges which weighs 83 N is being pushed across a horizontal floor. As it moves, it is slowing at a constant rate of 0.90 m/s each second. The push force has a horizontal component of 20 N and a vertical component of 25 N downward. Calculate the coefficient of kinetic friction between the box and the floor.

Explanation:

The given data is as follows.

    F_{1} = 20 N, F_{2} = 25 N, a = -0.9 m/s^{2}

             W = 83 N

         m = \frac{83}{9.81}

             = 8.46

Now, we will balance the forces along the y-component as follows.

       N = W + F_{2}

           = 83 + 25 = 108 N

Now, balancing the forces along the x component as follows.

       F_{1} - F_{r} = ma

        20 - F_{r} = 8.46 \times (-0.9)

             F_{r} = 7.614 N

Also, we know that relation between force and coefficient of friction is as follows.

             F_{r} = \mu \times N

          \mu = \frac{F_{r}}{N}

                    = \frac{7.614}{108}

                    = 0.0705

Thus, we can conclude that the coefficient of kinetic friction between the box and the floor is 0.0705.

7 0
3 years ago
Read 2 more answers
Technician A says that you can usually depressurize a brake accumulator by turning the ignition switch ""off"" to disable the el
Rzqust [24]

Answer:

Both Technician A and Technician B

Explanation:

In order to gain a better understanding of the solution above let define some terms

   Break Accumulator

We can define a break accumulator as storage that that helps generate the required pressure in order for the breaking system to respond faster this accumulator is charged by turning the steering wheel slowly at once from  lock to lock now this build the pressure in the accumulator and one way to depressurize is it is by  turning the ignition switch ""off""

 Now a scan tool is a device that can interface with a car it can also be used to diagnose a car an get the diagnostic information to help in the cars diagnoses and also be used to reprogram a car

3 0
3 years ago
Other questions:
  • La frecuencia de una onda es 60Hz y su velocidad, 30 m/s. Calcula su longitud de onda
    9·1 answer
  • What is the voltage in a circuit which has a current of 50 amps and a resistance of 10<br> ohms?
    13·1 answer
  • What is the acceleration?
    7·1 answer
  • What BAC is acceptable for teen drivers?
    7·1 answer
  • According to Coulomb's law, when the distance between two point charges doubles, what happens to the electric force acting betwe
    5·1 answer
  • How many atoms of hydrogen are in vitamin B
    8·1 answer
  • Explain why each element has a unique spectrum of absorption or emission lines.
    6·1 answer
  • What do you observe when we view the orbit of the moon at our first<br> setting?
    12·1 answer
  • The net vertical force on a box F as a function of the vertical position y is shown below.
    9·1 answer
  • What happens in a cloud to cause electrons to move from some particles to others?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!