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A simple pendulum has a period of 2.5 s.
(a) What is its period if its length is made four times larger?
(b) What is its period if the mass of the suspended bob is made two times larger?
White light reflected at perpendicular incidence from a uniform soap film has an interference maximum at 480.0 nm, what is the film thickness
A proton a neutron and an alfa particle accelerated through the same potential difference enter a region of uniform magnetic field moving at right angles to B.(a) Compare their kinetic energies.(b) if the radius of the proton’s circular path is 10 cm..
Presume the electron is at the midpoint between the proton.
An 8m, 290 N uniform ladders rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.75, and the ladder makes a 50° angle with the ground. How far up the ladder can a 720 N person climb before the lad..
two converging lenses, each of focal length 15.0 cm, are placed 40cm apart, and object is placed 30cm in front of the first. what is the magnification of the system
q1. the two rotating systems shown in the figure differ only in that two identical movable masses are positioned at
A building made with a steel structure is 650 m high on a winter day when the temperature is 0°F. How much taller (in cm) is the building
Nik is walking a tightrope across Niagara Falls. The tightrope spans 460m. Find the tension in the tightrope while he is standing at this point
A proton moves through a magnetic field at 36.9% of the speed of light. At a location where the field has a magnitude of 0.00629 T and the proton\'s velocity makes an angle of 141° with the field, what is the magnitude of the magnetic force acting on..
A 0.8-kg mass is hanging from a spring with spring constant 19 N/m. Then the mass is displaced from the equilibrium by 2.3 cm and let go. What is the resulting period of the oscillation
What would be apparent speed of the spacecraft image
An airplane propeller is rotating at 1250rpm. Compute the propeller's angular velocity
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