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Paladinen [302]
3 years ago
9

If an object is the equal to the density of water will it float of sink?

Physics
1 answer:
castortr0y [4]3 years ago
4 0
Yes it wil float.ngjgugjgjgjg
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Sensible heat involves a change in which aspect of a substance?
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Sensible heat involves a change in temperature.
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Changing the length of an air column will alter its _______
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Natural Frequency 
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Based on the wall of conservation of energy how can we reasonably improve a machines ability to do work?
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we can reduce the friction between its moving parts.

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3 years ago
Optimus Prime is flying straight up at 24 m/s when he accidentally drops his mega-ray blaster and it falls 94 m to the ground be
natali 33 [55]

Answer:

The time it will take the mega-ray blaster to hit the ground is 2.57 s.

Explanation:

Given;

initial velocity of Optimus Prime, u = 24 m/s

height of fall of the mega-ray blaster, h = 94 m

The time of fall of the mega-ray blaster is calculated using the following kinematic equation;

h = ut + \frac{1}{2}gt^2\\\\94 = 24t +  \frac{1}{2}(9.8)t^2\\\\94 = 24t + 4.9t^2\\\\4.9t^2 +24t -94 = 0\\\\Use \ formula \ method \ to \ solve \ for \ "t"\\\\a = 4.9 , b = 24, c = -94\\\\t = \frac{-b \ +/- \ \sqrt{b^2 -4ac} }{2a} \\\\t =  \frac{-24 \ +/- \ \sqrt{(24)^2 -4(-94 \times4.9)} }{2(4.9)} \\\\t = \frac{-24 \ +/- \ \sqrt{2418.4} }{9.8}\\\\t = \frac{-24 \ +/- \ 49.177 }{9.8}\\\\t = \frac{-24 \ +\  49.177 }{9.8} \ \ or \ \ t = \frac{-24 \ -\  49.177 }{9.8} \\\\

t = 2.57 \ s \ \ or \ \ t = -7.47 \ s

t = 2.57 s

Therefore, the time it will take the mega-ray blaster to hit the ground is 2.57 s.

3 0
3 years ago
7 types of electromagnetic waves from lowest to highest frequency
goldfiish [28.3K]

Answer:

radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

Explanation:

Electromagnetic waves are the waves which are created as the result of the electrical waves which are perpendicular to each other and also perpendicular to the direction of propagation.

Electromagnetic spectrum is range of the frequencies and their respective wavelengths of the various type of the electromagnetic radiation.

In order of the increasing frequency and the photon energy and the decreasing wavelength the spectrum are:  

<u>radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays</u>.

5 0
3 years ago
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