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Lady bird [3.3K]
3 years ago
6

8. Differentiate between each of these land designations made during the Progressive Era:

Physics
1 answer:
aliya0001 [1]3 years ago
7 0

Answer:djhssnjsksksmksjsbhddbd

Explanation:

Hsjdbdkxlziucychcjxnsbsb

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The eiffel tower is 300 meters tall. Disregarding air friction, at what velocity would an object be traveling when it reaches th
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Explanation in the pic above.

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Does the efficiency of a motor depend on mass?
Valentin [98]

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  • Efficiency=Output/input

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5 0
2 years ago
Read 2 more answers
Three kids are riding on a snow sled traveling horizontally without friction at 19.8 m/s. The masses of Kid A, B, and C are 42.8
Kamila [148]

Answer:

34.6 m/s

Explanation:

From conservation of momentum, the sum of initial and final momentum are equal. Momentum is a product of mass and velocity. Initial mass will be 42.8+31.5+25.9=100.2 kg

Final mass will be 31.5+25.9=57.4 kg

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M1v1=m2v2

Making v2 the subject of the formula then

V2=\frac {M1v1}{m2}

Substitute 100.2 kg for M1, 19.8 m/s fkr v1 and 57.4 kg for m2 then

V2=\frac {100.2 kg\times 19.8 m/s}{57.4 kg}=34.56376 m/s\approx 34.6 m/s

4 0
3 years ago
The temperature of a substance is _________
emmainna [20.7K]
The answer is B.
Temperature is just another term for the average kinetic energy of a substance.
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