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Aleonysh [2.5K]
3 years ago
9

How safe is Hydroelectric Energy? Use in your own words.

Physics
1 answer:
pickupchik [31]3 years ago
4 0
This is your perfect answer
It is flexible. Water flow can be adjusted and even conserved according to the need for power. It is safe! Compared with the use of fossil fuels and nuclear energy, hydropower is a much safer system..
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An astronaut is in space with a baseball and a bowling ball. The astronaut pushes both objects in the same direction. If both ba
Crazy boy [7]

Answer:

As a mass greater than that of baseball, at the moment of the bowling wave the moment of the baseball ball is also greater

Explanation:

This problem is an application of momentum and momentum. When the astronaut pushed balls, he needed more force to move the ball of greater mass (bowling). The expression for soul is

      p = m v

Besibol Blade

      p1 = m1 v

Bowling ball

      p2 = m2 v

As a mass greater than that of baseball, at the moment of the bowling wave the moment of the baseball ball is also greater

      p2 >> p1

3 0
4 years ago
PLEASE HELP!!!! 15 point!!!!!
Nadusha1986 [10]
ANSWER 1: The manipulated variable is the fertilizer since the other factors (water and sunlight) are given in equal amounts. It is a controlled experiment because one group receives fertilizer while the other does not. Any differences in growth should be due to either having fertilizer or not.

ANSWER 2: In order for it to be a theory, it has to be tested numerous times by multiple scientists.

Hope it helps. God bless
3 0
4 years ago
Read 2 more answers
Can sometimes solve problem 16
NISA [10]
It’s called the the magnetic field
7 0
3 years ago
A 20 kg cart moving at 4 m/s has how much momentum?
masha68 [24]

Answer:

We conclude that the required momentum is 80 kgm/s.

Explanation:

Given

  • Mass m = 20 kg
  • Velocity v = 4 m/s

To determine

The momentum p = ?

Important Tip:

  • The momentum of an object is the product of mass and velocity.

We can determine the momentum using the formula

p = mv

where

  • p is the momentum
  • m is the mass
  • v is the velocity

now substituting m = 20 and v = 4 using the equation

p = mv

p = (20) (4)

p = 80 kg m/s

Therefore, we conclude that the required momentum is 80 kgm/s.

6 0
3 years ago
Beer producers and bread bakers depend on types of yeast to respirate anaerobically to make their products.
Karo-lina-s [1.5K]

Answer:

True

Explanation:

5 0
3 years ago
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