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Andrew [12]
2 years ago
7

2. Mrs. Stern is standing still on rollerblades on a frictionless floor in the middle of the A-gym while

Physics
1 answer:
scoundrel [369]2 years ago
6 0

Answer:

If she bends forward

Explanation:

because the equilibrium of gravity will not stay the same causing her to move forward

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Mama L [17]
52, mass number equals protons + neutrons
3 0
3 years ago
HELP ME, I'M BEING TIMED
m_a_m_a [10]

Answer:

i think c

Explanation:

because cars run on mechanical energy and solar powered means its by the sun which is light energy

7 0
2 years ago
Read 2 more answers
Justin Bieber is thrown horizontally at 10.0 m/s from the top of a cliff 122.5 m high.
sveticcg [70]

===>  Distance fallen from rest in free fall =

                                         (1/2) (acceleration) (time²)

                               (122.5 m) = (1/2) (9.8 m/s²) (time²)

Divide each side by (4.9 m/s²):   (122.5 m / 4.9 m/s²)  =  time²

                                                           (122.5/4.9) s²  =  time²

Take the square root of each side:    5.0 seconds


===> (Accelerating at 9.8 m/s², he will be dropping at
                               (9.8 m/s²) x (5.0 s) = 49 m/s
when he goes 'splat'.  We'll need this number for the last part.)


===> With no air resistance, the horizontal component of velocity
doesn't change.

Horizontal distance = (10 m/s) x (5.0 s)  =  50 meters .

===>  Impact velocity =  (10 m/s horizontally) + (49 m/s vertically)

                                 = √(10² + 49²)  =  50.01 m/s  arctan(10/49)

                                 =    50.01 m/s   at  11.5° from straight down,
                                                           
away from the base of the cliff.  

7 0
3 years ago
Read 2 more answers
What happens to the free energy released as electrons are passed from photosystem II to photosystem I through a series of electr
lana [24]
<span>It is used to establish and maintain a proton gradient.</span>
6 0
3 years ago
A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0 N. What is the speed of the wave?
enyata [817]
The speed of a wave is determined by the product of the frequency and the wavelength; we already have the wavelength and the frequency, so all we need to do is multiply them by each other and use our proper unit of measure.

Velocity (speed) = Frequency x Wavelength
V = 250 x 6
V = 1500

Your answer is 1500 m/s.

I hope this helps!
5 0
3 years ago
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