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zhannawk [14.2K]
3 years ago
9

If you drop a ball, and then one second later drop a ball identical in mass, size and shape, what happens to the distance betwee

n them as they fall?
Physics
1 answer:
Mumz [18]3 years ago
8 0
They maintain the same distance between each other throughout the fall
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Determine the automobile’s braking distance from 90 km/h when it is going up a 5° incline. (Round the final value to one decimal
NeX [460]

Answer:

366 m

Explanation:

u = 90 km/h = 25 m/s,

theta = 5 degree

acceleration, a = g Sin theta = 9.8 x Sin 5 = 0.854 m/s^2

The final velocity os zero and let the braking distance be s.

Use third equation of motion

v^2 = u^2 - 2 a s

0 = 25 x 25 - 2 x 0.854 x s

s = 366 m

8 0
3 years ago
Solids in which the atoms have no particular order or pattern are called
posledela

Answer:

Amorphous solids are composed of atoms or molecules that are in no particular order. Each particle is in a particular spot, but the particles are in no organized pattern. Examples include rubber and wax. Crystalline solids have a very orderly, three-dimensional arrangement of atoms or molecules

Explanation:

8 0
3 years ago
Help, im not sure how to do this at all
antiseptic1488 [7]

Answer:

60 m

Explanation:

The boat has two separate motions:

1- A motion due north, with constant speed of 10 m/s

1- A motion due east, due to the current, at speed of 2 m/s

We know that the river is 300 m wide, so we can consider first motion 1) to find how much does it take for the boat to cross the river:

t=\frac{d}{v}=\frac{300 m}{10 m/s}=30s

Now we can find how far downstream the boat moved by calculating the distance that the boat covered moving east during this time interval:

d'=vt=(2 m/s)(30 s)=60 m

5 0
3 years ago
Page 1:Page 2:
goblinko [34]

Answer:

or the other answer is venn diagram if your on another question

Explanation:

5 0
3 years ago
Read 2 more answers
Neon signs require about 12,000 V for their operation. Consider a neon-sign transformer that operates off 120- V lines. How many
Ugo [173]
I can't give you the actual number of turns, because it's the RATIO
that counts. 

However many turns the primary has, the secondary should have
about TEN TIMES that number.  Then the transformer will multiply
the primary voltage by 10 ... 120 volts of AC at the primary will
become 1,200 volts of AC at the secondary.

Note that it HAS TO be AC.  If the transformer is supplied with DC,
then 120 volts at the primary becomes zero volts at the secondary
and a big cloud of stinky smoke in the room.
8 0
3 years ago
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