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4 years ago

I am so confused by this! Someone, please help me! This isn't a test or homework question, just me being really confused!

Physics

1 answer:

Molodets [167]4 years ago

3 0

Relativistic mean its so fast its a fraction of the sped of light.

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Please help me with these questions... I really need help..

attashe74 [19]

45) B) Vaporizing water at its boiling point

46) D) There is no change in temperature

47) B) Molecules must be pulled apart

48) D) Steam at 100 C

Hope this helps!

6 0

3 years ago

My auestion is !

kkurt [141]

G has the value 6.67 × 10-11 Newtons kg-2 m2.

6 0

4 years ago

Imagine a raindrop starting from rest in a cloud 2 km in the air. If it fell with no air friction at all, it would accelerate to

LenKa [72]

Answer:

2) 433 mph

Explanation:

The final velocity of the raindrop as it reaches the ground can be found by using the equation for a uniformly accelerated motion:

$v^2 = u^2 + 2ad$

where

v is the final velocity

u = 0 is the initial velocity (the raindrop starts from rest)

a = g = 9.8 m/s^2 is the acceleration due to gravity

d = 2 km = 2000 m is the distance covered

Solving for v,

$v=\sqrt{u^2 +2gd}=\sqrt{0^2+2(9.8 m/s^2)(2000)}=198 m/s$

And keeping in mind that

1 mile = 1609 metres

1 hour = 3600 s

The speed converted into miles per hour is

$v=198 \frac{m}{s}\cdot \frac{3600 s/h}{1609 m/mi}=433 mph$

5 0

3 years ago

Which of the following best compares longitudinal waves with transverse waves?

Semmy [17]

In longitudinal waves, the particles of the medium or a system displaces back and forth(parallel) in the direction of the propagation of waves. In transverse waves, the particles of the medium or a system displaces perpendicular to the direction of the propagation of waves. Therefore, C is correct.

5 0

3 years ago

Read 2 more answers

Static electricity is the result of a net electric charge?

hichkok12 [17]

Answer:

Static electricity is the result of an imbalance between negative and positive charges in an object. These charges can build up on the surface of an object until they find a way to be released or discharged.

Explanation:

4 0

3 years ago