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The engine on a motorcycle hums at 85 Hz.
If the motorcycle travels toward a resting observer at a velocity of 29.6 m/s, what frequency does the observer hear?
Use 343 m/s for the speed of sound.
For a very every case the moment of inertia of a one particle about an axis is given by, I = mr 2 Here, m is the mass of the particle and r its distance from the axis under
Q. Give any two differences among Peltier effect and Joule's law of heating. Joule's law of heating Peltier effect Takes place all th
The loudness of sound depends on: Amplitude of vibration. Area of vibrating body. Distance from the sounding body. Density of the medium.
How to draw hr diagram including life cycle of the sun
Plane and The Package Suppose a plane moving along with a constant speed at an elevated height above the Earth's surface. Within the course of its flight, the plane drops a pac
A power boat of mass 500 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coa
Q. How can we increase the current sensitivity of a galvanometer? The current sensitivity of a galvanometer is able to be increased by (i) Rising the number of turns (ii
Consider air (ideal gas) as working substance inside a piston-cylinder device (closed system). This air undergoes a power cycle as shown in figure. Determine work output per unit m
Determination of packing fraction of diamond The co-ordination number of an atom in diamond structure is 4 as can be seen from the unit cell of diamond and is loosely packed.
An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of: a) Momentum but not energy b) Neither momentu
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