Question1a dolphin located in sea water at a temperature of, Ask an Expert

Academics

Question1

A dolphin located in sea water at a temperature of 21?C emits a sound directed toward the bottom of ocean 148 m below.

How much time passes before it hears an echo? Imagine the speed of sound in sea water is 1530 m/s at this temperature. Reply in units of s

Question2

A gun shoots bullets that leave muzzle with the speed of 332 m/s. If a bullet is to hit a target 133 m away at the level of the muzzle, the gun must be aimed at a point above the target. How far above the aim is this point? (Ignore air resistance.)

Question3

A cannon with a muzzle speed of 1000 m/s is used to start an avalanche on a mountain slope. The aim is 2000 m from the cannon horizontally and 800 m above the cannon. At what angle (in degrees and three significant figures), above the horizontal, must the cannon be fired?

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M9720354

Have any Question?Write your Review or question?

Related Questions in Physics

Question suppose we could shrink the earth without changing

Question: Suppose we could shrink the earth without changing its mass. At what fraction of its current radius would the free-fall acceleration at the surface be three times its present value? The response must be typed, ...

Question one type of bb gun uses a spring-driven plunger to

Question: One type of BB gun uses a spring-driven plunger to blow the BB from its barrel. (a) Calculate the force constant of its plunger's spring if you must compress it 0.130 m to drive the 0.0580-kg plunger to a top s ...

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 a particle initially located at the origin has an

Question: A particle initially located at the origin has an acceleration of a= 2.00j m/s2 and an initial velocity of Vi = 7.00i m/s. (a) Find the vector position of the particle at any time t (where t is measured in seco ...

Question a softball pitcher throws an underhanded pitch

Question: A softball pitcher throws an underhanded pitch with the arm fully extended (straight at the elbow). The ball leaves the pitcher's hand with a speed of 25 m/s. Assume that the pitching motion originates with the ...

A 78 g basketball is launched at an angle of 448 and a

A 78 g basketball is launched at an angle of 44.8? and a distance of 15.9 m from the basketball goal. The ball is released at the same height (ten feet) as the basketball goal's height. A basketball player tries to make ...

Question in this problem we will consider a collision of

Question: In this problem we will consider a collision of two moving objects such that after the collision, the objects stick together and travel off as a single unit. The collision is therefore completely inelastic. You ...

Question our suns 5800 k surface temperature gives a peak

Question: Our sun's 5800 K surface temperature gives a peak wavelength in the middle of the visible spectrum. What is the minimum surface temperature for a star whose emission peaks at some wavelength less than 400 nm? t ...

Question a somewhat idealized graph of the speed of the

Question: A somewhat idealized graph of the speed of the blood in the ascending aorta during one beat of the heart appears as in the figure Part A: Approximately how far, in cm, does the blood move during one beat? Part ...

Can you help me with these questionshow can you tell if a

Can you help me with these questions? How can you tell if a single measurement is more precise than another? If the smallest division on a scale is 0.1 mL, to what precision should you take a volume measurement using tha ...

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