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A 2kg block is released 4m from a massless spring with a force constant K=100N/m that is aong a plane inlined at 30°. if the plane is frictionless , find the maximum compression of the spring.
Two filament lamp A and B takes 0.8Ampere respectively when connected across 110 volt supply.Determine the value of current when they are connected in series
A crate of mass 10kg is pulled up arough incline with an initial speed of 1.5m/s. the pulling force is 100N parallel to the incline which makes an angle of 30° with the horizontal. the coefficient of kinetic friction is 0.4 and the crate is pulled 5m. How much mechanical energy is lost due to friction?
! Suppose that you have a battery with12v, show that a device operating at 4v can be powered by this battery? If estimate the value of resistance that will be used in your proposed cercuit.
- Determine the wave-number of the wave shown in the figure below, where A = 9.8m and B = 1.3m. Note: Use this notation in writing your unit (Examples: 1/m or 1/s)
- Gusts of wind make the bamboo grass sway back and forth at a vibration frequency of about 0.12Hz. What is its period of vibration?
If you release the metal block, will it sink, or will it float to the surface? Explain.
Calculate the thrust of a steel ball of 10cm radius immersed in water. (Archimedes Principle) Show solution.
A car weighing 1200kg is moving with a velocity of 12.0 m/s to the East. Another car, located 40 meters away, has a mass of 1800kg and is moving with a velocity of 20.0 m/s to the East as well.
a. Find the position of the center of mass of the system consisting of the
two cars.
b. Find the momentum of each of the cars.
c. Find the momentum of the entire system.
Define the interference and diffraction of light.
Write down the difference between the interference and diffraction of light?
