2 years ago

3. In what circumstance will a flash of lightning travel through the sky and touch the ground?

1 answer:

5 0

Answer: The answer is both. Cloud-to-ground lightning comes from the sky down, but the part you see comes from the ground up. A typical cloud-to-ground flash lowers a path of negative electricity (that we cannot see) towards the ground in a series of spurts.

Explanation:

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A young man exerted a force of 9,000 N on a stalled car but was unable to move it. How much work was done?

olasank [31]

W=F*s
W=9000*0
W=0
W:Work
F:Force
s:Distance

5 0

3 years ago

The bending of waves such as sound waves, light waves, and waves in water, around obstacles or the edges of openings is called.

kolezko [41]

Answer:

Diffraction

Explanation:

Diffraction is the bending of waves around obstacles and openings. The amount of diffraction increases with increasing wavelength.

4 0

1 year ago

A bird flies 10 miles south, turns and flies 15 miles east. What distance did it fly.

vfiekz [6]

Answer:

wouldn't it be 25 miles?? yeah

Explanation:

4 0

3 years ago

A ball is thrown upward with an initial velocity of 13 m/s. Using the approximate value of

dem82 [27]

Answer:

v=v0 - gt

Explanation:

The equation for velocity is

v=v0 - gt

where v0=14m/s, g=10m/s^2.

in 1 second:

v=14-10=4m/s

it is positive so direction is upwards

in 2 seconds:

v=14-20=-6m/s

it is negative so direction is downwards

5 0

3 years ago

A graduated cylinder contains 17.5 ml of water. When a metal cube is placed onto the cylinder, its water level rises to 20.3 ml.

igomit [66]

Answer:

V=2.8 ml

Explanation:

volume of the cube is it would be 20.3 - 17.5 ml so 2.8 ml.

8 0

4 years ago