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pshichka [43]
3 years ago
6

PLZ FAST Scientific knowledge is both long lasting and always _______.

Physics
2 answers:
Montano1993 [528]3 years ago
8 0

Answer:

Answer=Changing......

horrorfan [7]3 years ago
4 0
The answer is changing
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Which is a characteristic of all ions? They are made of one type of atom. They have one overall charge. They are made of two or
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Answer:

They are made of one type of atom.

Explanation:

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an object tied to the end of the string moves in a circle . the force exerted by the string depends on the mass of the object it
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Answer:Fc=mv^2/r

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A physicist makes a cup of instant coffee and notices that, as the coffee cools, its level drops 3.00 mm in the glass cup. Show
Lady bird [3.3K]

Answer:

change in height  is 1.664 mm

Explanation:

Given data

drops = 3.00 mm

diameter = 5.00 cm = 0.05 mm

decrease  =  350 cm^3

temperature = 95°C to 44.0°C

to find out

the decrease in millimeters in level

solution

we  will calculate here change in volume so we can find how much level is decrease

change in volume = β v change in temp   ...............1

here change in volume = area× height

so = \pi /4 × d² h

so we can say change in volume =  \pi /4 × d² × change in height   .......2

so from equation 1 and 2  we calculate change in height

( β(w) -β(g) )× v× change in temp = \pi /4 × d² × change in height

change in height = 4 × ( β(w) -β(g) ) v× change in temp / \pi /4 × d²

put all value here

change in height = 4 × ( 210 - 27 )(350 ) 10^{-6}× (95-44) / \pi /4 × 0.05²

change in height  is 1.664 mm

5 0
3 years ago
Which of the following remains constant during the motion of a projectile fired from a planet?
trapecia [35]

Answer:

C. Horizontal component of velocity

Explanation:

Object in motion stays in motion,

nothing works against its motion in the horizontal direction, unlike in the vertical direction, gravity pulls object down.

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Non examples of gravity ?
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Floating. When you have no gravity you have nothing to be pushing you down to the floor so that would be an example of no gravity pushing on you.
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