
Concept explainers
A 170-g quantity of a certain metal, initially at 125°C, is dropped into an insulated beaker containing 84 g of water at 16°C. The final temperature of the metal and water in the beaker is measured as 39°C. Assume that the heat capacity of the beaker can be ignored.
a. How much heat has been transferred from the metal to the water?
b. Given the temperature change and mass of the metal, what is the specific heat capacity of the metal?
c. If the final temperature of the water and this metal is 53°C instead of 39°C, what quantity of this metal (initially at 125°C) was dropped into the insulated beaker?
(a)

The amount of heat transferred from metal to water.
Answer to Problem 4SP
The amount of heat transferred from metal to water is
Explanation of Solution
Given info: A
Write the expression for heat in terms of specific heat capacity
Here,
Write the expression for change in temperature
Here,
Substitute equation (2) in (1)
Substitute
Conclusion:
The amount of heat transferred from metal to water is
(b)

The specific heat capacity of metal.
Answer to Problem 4SP
The specific heat capacity of metal is
Explanation of Solution
Given info: A
Write the expression for specific heat capacity of metal
Substitute
The negative sign in the above expression is avoided since specific heat capacity is a positive quantity.
Conclusion:
The specific heat capacity of metal is
(c)

The quantity of heat was dropped from metal to insulating beaker.
Answer to Problem 4SP
The quantity of heat was dropped from metal to insulating beaker is
Explanation of Solution
Given info: A
Write the expression for heat in terms of specific heat capacity
Here,
Write the expression for change in temperature
Here,
Substitute equation (2) in (1)
Substitute
Write the expression of mass in terms of specific heat capacity
Substitute
The negative sign in the above equation is avoided since mass is always a positive quantity.
Conclusion:
The quantity of heat was dropped from metal to insulating beaker is
Want to see more full solutions like this?
Chapter 10 Solutions
Physics of Everyday Phenomena
Additional Science Textbook Solutions
College Physics: A Strategic Approach (3rd Edition)
Fundamentals Of Thermodynamics
Organic Chemistry
- simple diagram to illustrate the setup for each law- coulombs law and biot savart lawarrow_forwardA circular coil with 100 turns and a radius of 0.05 m is placed in a magnetic field that changes at auniform rate from 0.2 T to 0.8 T in 0.1 seconds. The plane of the coil is perpendicular to the field.• Calculate the induced electric field in the coil.• Calculate the current density in the coil given its conductivity σ.arrow_forwardAn L-C circuit has an inductance of 0.410 H and a capacitance of 0.250 nF . During the current oscillations, the maximum current in the inductor is 1.80 A . What is the maximum energy Emax stored in the capacitor at any time during the current oscillations? How many times per second does the capacitor contain the amount of energy found in part A? Please show all steps.arrow_forward
- A long, straight wire carries a current of 10 A along what we’ll define to the be x-axis. A square loopin the x-y plane with side length 0.1 m is placed near the wire such that its closest side is parallel tothe wire and 0.05 m away.• Calculate the magnetic flux through the loop using Ampere’s law.arrow_forwardDescribe the motion of a charged particle entering a uniform magnetic field at an angle to the fieldlines. Include a diagram showing the velocity vector, magnetic field lines, and the path of the particle.arrow_forwardDiscuss the differences between the Biot-Savart law and Coulomb’s law in terms of their applicationsand the physical quantities they describe.arrow_forward
- Explain why Ampere’s law can be used to find the magnetic field inside a solenoid but not outside.arrow_forward3. An Atwood machine consists of two masses, mA and m B, which are connected by an inelastic cord of negligible mass that passes over a pulley. If the pulley has radius RO and moment of inertia I about its axle, determine the acceleration of the masses mA and m B, and compare to the situation where the moment of inertia of the pulley is ignored. Ignore friction at the axle O. Use angular momentum and torque in this solutionarrow_forwardA 0.850-m-long metal bar is pulled to the right at a steady 5.0 m/s perpendicular to a uniform, 0.650-T magnetic field. The bar rides on parallel metal rails connected through a 25-Ω, resistor (Figure 1), so the apparatus makes a complete circuit. Ignore the resistance of the bar and the rails. Please explain how to find the direction of the induced current.arrow_forward
- For each of the actions depicted, determine the direction (right, left, or zero) of the current induced to flow through the resistor in the circuit containing the secondary coil. The coils are wrapped around a plastic core. Immediately after the switch is closed, as shown in the figure, (Figure 1) in which direction does the current flow through the resistor? If the switch is then opened, as shown in the figure, in which direction does the current flow through the resistor? I have the answers to the question, but would like to understand the logic behind the answers. Please show steps.arrow_forwardWhen violet light of wavelength 415 nm falls on a single slit, it creates a central diffraction peak that is 8.60 cm wide on a screen that is 2.80 m away. Part A How wide is the slit? ΟΙ ΑΣΦ ? D= 2.7.10-8 Submit Previous Answers Request Answer × Incorrect; Try Again; 8 attempts remaining marrow_forwardTwo complex values are z1=8 + 8i, z2=15 + 7 i. z1∗ and z2∗ are the complex conjugate values. Any complex value can be expessed in the form of a+bi=reiθ. Find θ for (z1-z∗2)/z1+z2∗. Find r and θ for (z1−z2∗)z1z2∗ Please show all stepsarrow_forward
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegePhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning





