A ball is dropped from heigh

Reference no: EM13551654

A ball is dropped from height of 20 m above the surface of water in a lake. The refractive index of water is 4 / 3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is 12.8 m above the water surface, the fish sees the speed of ball as

Reference no: EM13551654

Questions Cloud

Kinetic energy of electrons that are freed in this process : Ultraviolet light with a wavelength of 10.0 nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process?

What is the volume of gasoline that overflows the tank : A 40.0 liter gas tank is filled to the brim with gasoline when the temperature is 5.00°C. Gasoline has a coefficient of volume expansion of 950 10-6/°C. If the gas tank is moved into the sun of a hot summer day, the temperature of the gas tank is ..

Compare the strength of the wine : One vessel contains a mixture of 5 parts pure wine and 3 parts soda, whereas the other vessel contains a mixture of 9 parts pure wine and 5 parts soda. Compare the strength of the wine.

What is the ratio of water and spirit in the new mixture : Two litres of mixture in which there is 2/5 of water and the rest spirit is mixed with five litres of mixture in which there is 1/3 of water and the rest spirit. What is the ratio of water and spirit in the new mixture?

A ball is dropped from heigh : A ball is dropped from height of 20 m above the surface of water in a lake. The refractive index of water is 4 / 3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is 12.8 m above the wate..

What is the intensity of the outgoing light : Unpolarized light with intensity I0 is sentrst through a polarizer with the polarizing axis aligned in the vertical direction, and then through a second polarizer with the polarizing axis oriented 30° from the vertical. What is the intensity of the o..

What is maximum height that stuck-together blocks will reach : Two block of mass M = 30 kg and m = 10 kg slide without friction down the sides of a hemispherical bowl. They each start simultaneously from rest at the lip of the bowl, a height h = 6.0 m above the bottom of the bowl.

What is the index of refraction of the unknown liquid : A laser beam is directed from air (n = 1.0) into an unknown liquid. The angle of incidence is measured to be 60° and the angle of refraction is measured to be 45°. What is the index of refraction of the unknown liquid?

Air resistance is dominant and ignoring lesser contribution : The equation F = arv + br2v2 gives the magnitude of the resistive force (in newtons) exerted on a sphere of radius r (in meters) by a stream of air moving at speed v (in meters per second), where a and b are constants with appropriate SI units.

User Account

All Pages