What is the final temperature of the coffee

Assignment Help Physics
Reference no: EM1386967

Q. A thermos contains 155 cm3 of coffee at 85° C. To cool the coffee, you drop two 15-g ice cubes into thermos. The ice cubes are at first at 0° C and melt completely. What is the final temperature of the coffee? Treat the coffee as if it were water.

Q. Two sounds differ in intensity level by 4.62 dB. What is the ratio of the intensities of these two sounds? (Let I1 be the intensity of the first (higher) sound and I2 be the intensity of the second (lower) sound.)

Reference no: EM1386967

Questions Cloud

Implement the calculator using stacks and queues : You will implement the calculator using stacks and queues. Your calculator should support following operators: Parenthesis. The input will be given in form of infix expressions, e.g. ( 2 + 3 ) * 5.
What is the tension at the bottom of the circle : An 0.82 kg bucket full of water is being swung by a rope in a vertical circle of diameter 2.31 m. Compute the least speed a bucket must be moving so that the water doesn't fall out.
Levels of all departments in all kinds of organizations : The Management Model (Planning, Organizing, Leading, Controlling ) is universal. In other words, managers at all levels of all departments in all kinds of organizations use this system. MAKE UP some examples (2 or 3) which illustrate that this is ..
Illustrate what are the major advantages of using evm : Illustrate what are the major advantages of using EVM as a project control mechanism? Illustrate what do you perceive are its disadvantages?
What is the final temperature of the coffee : Two sounds differ in intensity level by 4.62 dB. What is the ratio of the intensities of these two sounds? (Let I1 be the intensity of the first (higher) sound and I2 be the intensity of the second (lower) sound.)
True proportion of americans-visiting for holidays : An article in Parenting magazine reported that 60% of Americans needed a vacation after visiting their families for the holidays. Suppose this is the true proportion of Americans who feel this way. A random sample of 100 Americans is taken.
Illustrate what do you feel are the most common challenges : Illustrate what do you feel are the most common challenges related to supervising or being supervised? Examine personal challenges which you faced as a supervised employee or while supervising other employees.
Find the pressure that each ski exerts on the snow : A parallel plate capacitor has plates of area 2.0x10^-3 m^2 and a plate separation of 1.0x10^-4 m. Determine the capacitance of this system if air fills the volume between the plates.
Which location would minimize the total costs : Which location would minimize the total costs, given an annual productoi of 50,000 units? For what levels of manufacture and distribution would each location be best?

Reviews

Write a Review

Physics Questions & Answers

  How long does it take to make the complete trip

Evaluate with the strength of the earth's gravity at its surface, how much weaker is gravity at a distance of 10 earth's center.

  Find the force acting on a moving electron

An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.

  What is the acceleration of plane

Plot the position, velocity, and acceleration of the plane throughout this time interval as a function of time, using initial position of the plane as the origin.

  What charge is enclosed by the box

Imagine a "free" electron and a "free" proton held midway between the plates of a charged equivalent plate capacitor. When released, how do their accelerations and directions travel compare.

  How much chromium will remain after 1 year

A gymnast of mass 69.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 for the acceleration of gravity.

  How much time elapses before compass hits the ground

A space vehicle is coasting at a constant velocity of 28.5 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.523 m/s2 in the +x direction.

  The angular acceleration of the pulleys

Determine the angular acceleration of the pulleys and the tension T in the cord supporting the 612 Kg mass when it is released from rest.

  What is the radius of curvature

Unpolarized light with an intensity of 275 W/m2 passes by the two polarizers whose transmission axes are at an angle of 30.0° with respect to each other. What is an intensity of the light transmitted through both polarizers.

  If the mouse walks to the center of turntable

An owl is chasing a squirrel and is using echolocation (the reflection of sound) to aid in the hunt. If the squirrel is 40.5 m from the owl, how long does it take sound to travel from the owl to the squirrel and then back to the owl? (Use 343m/s a..

  Find out the work done by the force of friction

A flight attendant pulls her 64 N flight bag a distance of 370 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 51° above the horizontal.

  At what speed is astra approaching the planet

The amplitude of the voltage across an inductor can be greater than the amplitude of the generator emf in an RLC circuit. Consider an RLC circuit with Epeak = 50 V, R = 14, L = 1.05 H, and C = 1.12 µ F. Find out the amplitude of the voltage across th..

  What is the tension in each wire supporting street lamp

A certain freely falling object requires 1.7s to travel the last 40m before it hits the ground. From what height above ground did it fall.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd