A 7.0-kg pipe is hung from a steel wire that is 2.5 m long and has a diameter of 0.75 mm. Young's modulus for steel is 2.0 × 1011 N/m2. (a) By what distance does the wire stretch? (b) If the wire diameter were doubled, what would be the stretch?
What will be an ideal response?
(a) 1.9 mm (b) 0.49 mm
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Projectile Motion: A projectile is fired from ground level with an initial speed of 55.6 m/s at an angle of 41.2° above the horizontal. Neglect air resistance, take upward as the positive direction, and use g = 9.8 m/s2.(a) Determine the time necessary for the projectile to reach its maximum height.(b) Determine the maximum height reached by the projectile.(c) Determine the horizontal and vertical components of the velocity vector at the maximum height.(d) Determine the horizontal and vertical components of the acceleration vector at the maximum height.
What will be an ideal response?
Essay? List the six steps you can follow to create a website design plan.
What will be an ideal response?
In each element of a series LRC circuit
A) the currents are not in phase. B) the currents and voltages are not in phase. C) the voltages are in phase. D) the currents are in phase. E) the currents and voltages are in phase.
Which diagram correctly shows the magnetic field lines created by a circular current loop in which current flows in the direction shown?
a.
b.
