Answer:
42500 kg.m/s
Explanation:
Momentum = mass * velocity
Momentum = 1700* 25
Momentum = 42500 kg.m/s
Answer: A) I, II, and IV only
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The things you want to keep the same are the controls.
Keeping these things the same will help your independent variable, what you're changing (aka temperature), to be the only thing affecting your dependent variable, what you're measuring that usually changes because of the independent variable (aka speed of sprouting), giving you more accurate results.
From your list of choices, notice that the only thing you'll be changing is the III, the temperature. You want the amount of sunlight (I), water (II), and fertilizer (IV) to remain the same, or else those things might affect your final results. You want temperature to be the only thing affecting your final results!
Answer: 0.0328 A
Explanation:
Given
No of turns 
Length of solenoid 
Magnetic field 
the magnetic field at the center of the solenoid is
Putting values we get
