You throw a ball straight up, it peaks out and then comes back down to you. During this motion, the velocity and acceleration always point in the same direction
a. True
b. False
Indicate whether the statement is true or false
False
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During the _______________ phase, sunlight illuminates the far side of the Moon, and the side you see is in darkness
Fill in the blank(s) with correct word
Magnetic Field of a Long Wire: In the figure, the two long straight wires are separated by a distance of d = 0.40 m. The currents are I1 = 1.0 A to the right in the upper wire and I2 = 8.0 A to the left in the lower wire. What are the magnitude and direction of the magnetic field at point P, that is a distance d/2 = 0.20 m below the lower wire? (?0 = 4? × 10-7 T ? m/A)
What will be an ideal response?
A skydiver jumps out of a hovering helicopter. A few seconds later, another skydiver jumps out, so they both fall along the same vertical line relative to the helicopter. Both skydivers fall with the same acceleration. (Assume g is constant.) The difference in their velocities
1.increases. 2.decreases. 3.stays the same.
Two parallel straight wires carry currents in the same direction. The magnetic forces between the wires are such that
A) the wires feel a clockwise torque. B) they are pulled in the direction of the wires. C) the wires repel each other. D) the wires attract each other.