“At any point along a streamline in an ideal fluid in steady flow, the sum of the pressure, the potential energy per unit volume and the kinetic energy per unit volume have the same value.” The concept is known as

The amount of heat which is absorbed during the change of state of a substance without rise in its temperature is called its

When the temperature of an ideal gas is increased at constant pressure,

The phenomenon of damping results in decrease in

The characteristic of sound which enables us to distinguish two musical notes having the same frequency and loudness is called

A 3.5 lb weight hangs at the end of a spring with k = 20 lb/ft. The weight is pulled slightly and released. Calculate at what frequency it will vibrate?

The position x of an experimental rocket moving along a long rail is measured to be x(t) = (4m/s)t + (7m/s2)t2 + (5m/s3)t3 – (0.35m/s4)t4 over the first 10s of its motion, where t is in seconds and x is in meters. Find the velocity of the rocket for the first 10 seconds

At what temperature do both the centigrade and Fahrenheit thermometers show the same reading

At the boiling point of liquid, the vapor pressure

Suppose you want to store 1.00 J of electric potential energy in a volume of 1.00 m3 in vacuum. What is the magnitude of the required electric field?

Material a is a water and material b is a glass with index of refraction 1.52. If the incident ray makes an angle of 60o with the normal, find the direction of the reflected ray.

On decreasing the pressure, the boiling point of water will

A 60-ohm electric lamp if left connected to a 240-volt line for 3.0 min. How much energy is taken from the line?

The surface of the thermos flask is silvered for minimizing heat transfer by what process

According to this law, “The force between two charges varies directly as the magnitude of each charge and inversely as the square of the distance between them

When the pitch of a note is raised then, its

What is the work done in a piston-cylinder system that contains 0.5 cu meter of air initially at 150 kPA and 50 degrees Celsius if the temperature remains constant while the volume is decreased to a quarter of the original volume?

Heat will flow from one body to another in thermal contact with it, when they differ in

Which of the following thermometers is best suited for measuring a temperature of nearly 1500oC?

A spaceship moving away from Earth with speed of 0.900c fires a robot space probe in the same direction as its motion, with speed of 0.700c relative to the spaceship. What is the probe’s velocity relative to the Earth?