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An object of mass 4kg moves round a circle of radius 6m with a constant speed of 12m/s. Calculate the force towards the center.
An object of mass 4kg moves round a circle of radius 6m with a constant speed of 12m/s. Calculate the angular speed.
A stone of mass 0.6kg attached to a string of height 0.5m, is whirled in a horizontal circle at s constant speed. If the maximum tension (force) in the string is 30N force before it breaks. Calculate the maximum number of revolution it can make.
A stone of mass 0.6kg attached to a string of height 0.5m, is whirled in a horizontal circle at s constant speed. If the maximum tension (force) in the string is 30N force before it breaks. Calculate
a.) The maximum speed of the stone
A harmonic oscillator has a mass of 4 kg and a spring with a force constant 100
N/m. Find the period, frequency and angular frequency.
calculate earth's mass given the acceleration due to gravity at the North pole is 9.830 m/s² and the radius of the earth is 6371km from pole to pole.
if the period of a simple pendulum is 2 s, what should its length be ? if the length of the pendulum is doubled what will its period be.
Two charges, a= +6uC and qz=-5uC.
are separated by a distance r = 15cm.
What is the magnitude of the electric
force? Is the force repulsive or attractive?
The edge of a cube was found to be 1.50 plus or minus 0.05 what is its surface area and its volume.
Your mother is using an electric flat iron that draws a current of 15 A when connected to a 220 V line.
(a) What is the resistance of the heating element of the flat iron assuming that it obeys Ohm’s law? What is the resistivity of the heating element if it is a wire that is 2.7 cm long with a cross-sectional area of 2.1 x 10-4 m2?
