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Usimov [2.4K]
2 years ago
8

Alai is comparing the physical property of two materials. He is hitting each with a hammer to observe what happens. What physica

l property of the materials is Alai most likely observing? solubility conductivity hardness odor.
Physics
2 answers:
dalvyx [7]2 years ago
8 0

Answer:

C:Hardness

Explanation:

if youre hitting something your going to see wich one breaks first

STALIN [3.7K]2 years ago
4 0

Answer:  C

Explanation:

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A speed truck locks it’s brakes and it skids to a stop. If the truck’s total mass were doubled, it’s skidding distance would be?
Gnom [1K]

Answer:

The skidding distance would be doubled

Explanation:

When the truck applies the brakes and slows down, its motion is a uniformly accelerated motion, so its skidding distance can be found by using the suvat equation

v^2-u^2=2as

where

v = 0 is the final velocity (zero since the truck comes to a stop)

u is the initial velocity

a is the acceleration

s is the skidding distance

The acceleration can also be written as

a=\frac{F}{m}

where F is the force applied by the brakes and m the mass of the truck. Substituting into the previous equation,

-u^2 = 2\frac{F}{m}s\\s = -\frac{mu^2}{2F}

We see that the skidding distance is proportional to the mass: therefore, if the mass of the truck is doubled, the skidding distance will double as well.

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3 years ago
Good afternoon.....from bangladesh....
Step2247 [10]

Answer:

good afternoon

Explanation:

4 0
3 years ago
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Why would the bulb not light?
padilas [110]

are you a dmbss? the bulb and wire must be connected to both end

8 0
3 years ago
In which city did the wright brothers take off on their very first flight
Nezavi [6.7K]
<h2>Answer: Kitty Hawk, North Carolina </h2>

The Wright brothers, Wilbur and Orville, were pioneers of aviation, since they flew in a device heavier than air, which was inconceivable at that time.

Their first successful flight was on December 17th, 1903 in Kitty Hawk, North Carolina, which lasted only 12 seconds in which their plane (the Flyer I, with 341 kg, 6.4 m long and a wingspan of 12.3 m) traveled 37 m without touching the ground. This was achieved through the help of an external catapult that "threw" them into the air.

It should be noted that the Wright brothers only studied until high school, however, their passion for solving the problem of the human inability to fly, their perseverance and experience acquired over the years in their bicycle company, led them to reach that goal. An achievement that marked the beginning of the  aviation era.

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3 years ago
Describe how sound waves propagate.
Free_Kalibri [48]

Answer:

Sound waves go back and forth sending signals to your eardrum

Explanation:

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