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lukranit [14]
3 years ago
11

A student practicing for track ran 800 meter in 110 seconds. what was her speed?

Physics
1 answer:
adoni [48]3 years ago
3 0
Her speed was 7.27 meters per second
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17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air ( 3.0×106
sleet_krkn [62]

Answer:

Explanation:

Distance between plates d = 2 x 10⁻³m

Potential diff applied = 5 x 10³ V

Electric field = Potential diff applied /  d

= 5 x 10³  / 2 x 10⁻³

= 2.5 x 10⁶ V/m

This is less than  breakdown strength for air  3.0×10⁶ V/m

b ) Let the plates be at a separation of d .so

5 x 10³ / d = 3.0×10⁶ ( break down voltage )

d = 5 x 10³  / 3.0×10⁶

= 1.67 x 10⁻³ m

= 1.67 mm.

5 0
3 years ago
What are forces that two objects apply on each other
liq [111]
Answer: Whenever two objects are touching, they usually exert forces on each other. The force of gravity, on the other hand, is an example of a force that exists between objects without them having to be in contact. Objects with mass exert forces on each other via the force of gravity.

HOPE IT HELPED:) HAVE A NICE DAY
3 0
3 years ago
The mechanical advantage of an inclined plane can be increased by increasing the ramp's _____. slope length friction height
artcher [175]

Answer:

height is the answer i'm pretty sure.  

Explanation:

8 0
4 years ago
2. Michelle bought 15.6 yards of fabric. She used 5.43 yards in her art 10 points
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Do find the percentage you:
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8 0
3 years ago
Please answer for me thanks
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I believe one of these are called Elliptical, Spiral, and Irregular Galaxies.

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