(On request - Tamanna)
Q- A ball is thrown vertically upward from a window at 10 m/s at an angle of 45° to the horizontal. It hits the ground 5.0 s later.
a) What is the vertical height of the window from the ground?
b) How far from the base of the building does the ball strike the ground?
Q- A bungee jumper whose mass is 95 kg, has just completed his first bungee jump and is now bouncing up and down at the end of the cord. His oscillations have initial amplitude of 7 m and a period of 4.0 s.
(a) What is the spring constant of the bungee cord?
(b) What is the jumper's maximum speed …
Q- Two very long coaxial cylindrical conductors are placed with their axes coincide with z axis. The inner solid cylinder has radius a = 2 cm and caries a total current of I1 = 1.2 A in the positive z-direction. The outer cylinder has an inner radius b = 4 cm, outer radius c = 6 cm and carries a cu…
Q- An object is placed a distance r in front of a wall where r is exactly equals the radius of curvature of a certain concave mirror.
(a) At what distance from the wall the concave mirror to be placed so that a sharp image of the object is formed on the wall?
(b) What is the magnification of this …
Q- A car tire of inner radius 16.5 cm and outer radius 30.5cm is modeled as having two sidewalls of uniform thickness 0.635cm and a tread wall of uniform thickness 2.50cm and width 20.0cm over it. Assume the rubber has uniform density equal to 1.10 x 103 kg/m3, find its moment of inertia about an ax…
Q- A solenoid has length L = 30 cm, radius 6 cm, and N1 = 5500 turns; its axis coincides with the z-axis. A circular conducting loop containing N2 = 15 turns of radius a = 3 cm is centered inside the solenoid; the plane of the loop makes a 30° angle with respect to the z-axis. The loop has a net res…
Q- A person looks directly overhead and sees a plane exactly 1.5 km above the ground flying faster than the speed of sound. By the time he hear the sonic boom, the plane has traveled a horizontal distance of 2.0 km.
(a) Find the angle of the shock cone.
(b) Find the speed of the plane (the Mach nu…
Q- A steel wire having a mass of 5 g and a length of 1.2 m is fixed at both ends and has a tension of 974 N.
(a) Find the speed of transverse waves on the wire.
(b) Find the wavelength of the fundamental.
(c) Find the frequency of the fundamental.
(d) Find the frequency of the second harmonic.
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