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What is Interference of light? What are coherent source? Give the condition for well-defined and Sustened interference.
A simple pendulum is found to vibrate 50 times within 200seconds. When 1.5m of its length is reduced to a certain length, it vibrates 50 times in 175s. Find the original length of the pendulum.
Assuming that 80% of the Mars surface is covered with water at an average
depth of 3.5 miles and the radius of the earth is given by 5.97x106 meter,
estimate the mass of the water on the Mars in kilogram
Palmer hikes to a campsite where he will spend the evening. He hikes 6.0 km, north and 3.0 km, west. The magnitude of Palmer’s displacement is ___km.
A block weighing 100 N and having dimensions 200 mm on an edge is
allowed to slide down an incline on a film of oil having a thickness of 0.05 mm.
If a linear velocity profile in the oil is assumed, what is the terminal
speed of the block?
The viscosity of the oil is 7*10^-2 Ns/m^2
You and your friends are playing in the swimming pool with a 25-in diameter beach ball. How much force (in Newtons) would be needed to push the ball completely under water?
Palmer hikes to a campsite where he will spend the evening. He hikes 6.0 km, north and 3.0 km, west. The magnitude of Palmer’s displacement is ___km.
A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s. What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?
Can 500 year old rope survive under fresh water intact
How much work is done on a bookshelf being pulled with a force of 53.8 N for a distance of 5.00 m at an angle of 37.0o from the horizontal?
