A ball is dropped from height of 20 m above the surface of, Ask an Expert

Academics

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

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91088765

Have any Question?Write your Review or question?

Related Questions in Physics

Question a slingshot will shoot a 10-g pebble 220 m

Question: A slingshot will shoot a 10-g pebble 22.0 m straight up. Part A: How much potential energy is stored in the slingshot's rubber band? Express your answer using two significant figures. Part B: With the same pote ...

Question in this problem you will apply kinematic equations

Question: In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 m/s2 . Ignore air resistance. How long is the flea in the air from the time it jump ...

Question the power rating on a light bulb indicates how

Question: The power rating on a light bulb indicates how much power it would dissipate when it is hooked up to the standard household voltage of 120 V (this rating does not mean that the light bulb always dissipates the ...

Question resistivity measurements on the leaves of corn

Question: Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.3 MÎ© measured between two electrodes placed 20 cm apart ...

Problem a block oscillating on a spring has a maximum speed

Problem: A block oscillating on a spring has a maximum speed of 20cm/s. What will be the block's maximum speed if its totalenergy is doubled? Explain. (in its simplest form of physics,please) The response must be typed, ...

Question an old-fashioned lp record rotates at 33 13 rpm

Question: An old-fashioned LP record rotates at 33 1/3 rpm (revolutions per minute) and is 12 inches in diameter. A "single" rotates at 45 rpm and is 7.0 inches in diameter. If a fly sits on the edge of an LP and then on ...

Question part a find the energy u0 stored in the capacitor

Question: Part A: Find the energy U0 stored in the capacitor. Express your answer in terms of A, d, V, and Ïµ0. Remember to enter Ïµ0 as epsilon_0. Part B: The capacitor is now disconnected from the battery, and the plat ...

Question a simple pendulum oscillates with frequency fa

Question: A simple pendulum oscillates with frequency f. (a) What is its frequency if the entire pendulum accelerates at 3/4g upward? (b) What is its frequency if accelerates at 0.75g downward? The response must be typed ...

Question the tires of a car make 60 revolutions as the car

Question: The tires of a car make 60 revolutions as the car reduces its speed uniformly from 87.0km/h to 64.0km/h . The tires have a diameter of 0.90m. Part A: What was the angular acceleration of the tires? Part B: If t ...

Question the resistivity of a wire is given by rpla where p

Question: The resistivity of a wire is given by R=pL/A. Where p is the resistivity of the material, L is the length of the wire and A is the cross sectional area of the wire. a) If the diameter of the wire is .35mm calcu ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert