You would like a solenoid that is 32 cm long to produce a magnetic field of 0.78 T when it carries a current of 7.7 A. How many loops should this solenoid have?
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How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.