Pounding a nail into wood makes the nail warmer. Suppose that a hammer exerts an average...
Pounding a nail into wood makes the nail warmer. Suppose that a hammer exerts an average force of 500 N on a 6-cm steel nail when it drives into a piece of wood. the nail becomes hotter. If all the heat goes to the nail, calculate its increase in temperature. (assume that the specific heat capacity of steel is 450 J/kg*C degrees.)
Homework Answers
Work done = F*d = 500*0.06 = 30 J
Energy = Work done = 30 J
Energy = m*Cp*(T2 - T1)
30 = 20*10^-3 *450*(T2 - T1)..............assuming m = 20 grams
T2 - T1 = 3.33 deg C
Add Answer to:
Pounding a nail into wood makes the nail warmer. Suppose that a
hammer exerts an average...
A hammer of mass M is moving at speed v_0 when it strikes a nail of...
A hammer of mass M is moving at speed v_0 when it strikes a nail of negligible mass that is stuck in a wooden block. The hammer is observed to drive the nail a distance L deeper into the block. Find the work W done on the hammer by the nail. Express your answer as a function of F and L, where F is the force the nail exerts on the hammer. Don't forget to consider the sign of your...
Thermo: Calorimetry - KE, PE, & Q SOLIDS Specific heat Material (J/kg.K) Aluminum 921 LIQUIDS Material...
Thermo: Calorimetry - KE, PE, & Q
SOLIDS Specific heat Material (J/kg.K) Aluminum 921 LIQUIDS Material Specific heat (J/kg.K) Acetone 2150 Brass 402 Benzene 1800 Copper 377 Bromine 470 Glass 840 Ethyl alcohol 2400 Gold 126 Gasoline 2220 Ice 2095 Glycerin 2430 Iron 461 Kerosene 2010 Lead 130 Mercury 140 Nickel 502 Olive oil 1970 2130 Silver 239 Petroleum Styrofoam 1131 Toluene 1720 Zinc 390 Water 4186 Part 1: Bullet A 94 g bullet is fired from a height of...
Application to manufacturing/ Machining temperature : Estimate the average temperature along the ...
Application to manufacturing/ Machining temperature : Estimate the average temperature along the shear plane and the maximum temperature along the tool rake face for the following conditions during the orthogonal cutting of Ti6Al4V, as function of machining velocity from 1 m/s to 4 m/s: Tool rake angle: - 5 degree . Cutting ratio: 0.3 Cutting force (Fc): 225 N Thrust Force (Ft): 75 N Machining velocity: 1 m/s to 4 m/s Feed: 0.1 mm/rev Width of cut: 1.07 mm Length...
Even when shut down after a period of normal use, a large commercial nuclear reactor produces...
Even when shut down after a period of normal use, a large
commercial nuclear reactor produces heat at the rate of 162 MW by
the radioactive decay of fission products. This causes a rapid
increase in temperature if the cooling system fails.
Answers are NOT 12650 and 0.181 for #1.
Even when shut down after a period of normal use, a large commercial nuclear reactor produces heat at the rate of 162 MW by the radioactive decay of fission products....
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with...
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with an initial temperature of 10°c. The specific heat of aluminum is 900 J/(kg-K) and that of water is 4190 J/(kg K). What is the final temperature of assuming no heat is exchanged with the surroundings? A) 3 B) 35°C D) 28°C E) 33°C 3) A heat engine with aneffic ency of 300% performs 300 of work. How much heat is discharged to the lower...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Please Show alll work. 1.A person’s blood pressure is 120/70 (measured in mmHg). What must the...
Please Show alll work. 1.A person’s blood pressure is 120/70 (measured in mmHg). What must the height of an IV bag be so that blood is not pushed into the IV line by the blood pressure? 2. A graduate student doing an experiment puts 0.150 moles of helium into a cylinder with a moveable piston. The helium is at a pressure of 1.0 atm and a temperature of 30 °C at the beginning of the experiment. They then compress the...
A hammer of mass M is moving at speed v_0 when it strikes a nail of negligible mass that is stuck in a wooden block. The hammer is observed to drive the nail a distance L deeper into the block. Find the work W done on the hammer by the nail. Express your answer as a function of F and L, where F is the force the nail exerts on the hammer. Don't forget to consider the sign of your...
Thermo: Calorimetry - KE, PE, & Q
SOLIDS Specific heat Material (J/kg.K) Aluminum 921 LIQUIDS Material Specific heat (J/kg.K) Acetone 2150 Brass 402 Benzene 1800 Copper 377 Bromine 470 Glass 840 Ethyl alcohol 2400 Gold 126 Gasoline 2220 Ice 2095 Glycerin 2430 Iron 461 Kerosene 2010 Lead 130 Mercury 140 Nickel 502 Olive oil 1970 2130 Silver 239 Petroleum Styrofoam 1131 Toluene 1720 Zinc 390 Water 4186 Part 1: Bullet A 94 g bullet is fired from a height of...
Even when shut down after a period of normal use, a large
commercial nuclear reactor produces heat at the rate of 162 MW by
the radioactive decay of fission products. This causes a rapid
increase in temperature if the cooling system fails.
Answers are NOT 12650 and 0.181 for #1.
Even when shut down after a period of normal use, a large commercial nuclear reactor produces heat at the rate of 162 MW by the radioactive decay of fission products....
2) A person pours 400 g of water at 45°C into an 855-g aluminum container with an initial temperature of 10°c. The specific heat of aluminum is 900 J/(kg-K) and that of water is 4190 J/(kg K). What is the final temperature of assuming no heat is exchanged with the surroundings? A) 3 B) 35°C D) 28°C E) 33°C 3) A heat engine with aneffic ency of 300% performs 300 of work. How much heat is discharged to the lower...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Most questions answered within 3 hours.
-
What is facilitated diffusion and how does it differ from
symport and antiport transportation? How do...
asked 32 minutes ago -
if a firm producing 100 units at $5.00 each experience
an 80% experience curve, what will...
asked 1 hour ago -
A solid, uniform disk of radius 0.250 m and mass 53.7 kg rolls
down a ramp...
asked 3 hours ago -
Given the following table of high speed internet access vs.
annual home income:
Home Income
%...
asked 3 hours ago -
A baseball batter hits a 0.145kg baseball straight up into the
air. The baseball leaves the...
asked 4 hours ago -
An FM modulator is tested using
single-tone baseband signal with frequency of 50kHz and a sprectrum...
asked 4 hours ago -
Write the ionic equations for the first stage of salts
hydrolysis.
Anion, Cation?
Na2S
NiSO4
K2SO4...
asked 6 hours ago -
suppose there is a normally distributed population with a mean of
250 and a standard deviation...
asked 7 hours ago -
Question Three
Suppose you as project manager are using the Waterfall
development methodology on a large...
asked 8 hours ago -
Which statement is not true about welfare in Canada?
A.Benefits typically vary based on one's ability...
asked 8 hours ago -
Please help me with FLOWCHART and UML diagram for class,
thank you!
#include <iostream>
#include <fstream>...
asked 9 hours ago -
3. Describe the “logic circuit” of the Lac operon. Which
proteins are bound or not to...
asked 9 hours ago