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A thermodynamic system undergoes a process in which its internal energy increases by 480 J. find the energy transferred to or from it by heat
A Styrofoam cup holding 109 g of hot water at 1.00 x 10 Ccools to room temperature 21.8 C, What is the change in entropy of the room
A 80cm long metal string under 34.5 N tension has a linear mass density 2.10x10^-4 kg/m. Find the frequencies of the first three harmonics
The driver of one car sounds a 365 Hz frequency horn and the driver of the other car hears a frequency of 392 Hz, Determine the speed of both cars
A heat engine using a diatomic ideal gas goes through the following closed cycle: Isothermal compression until the volume is halved. What is the thermal efficiency of this heat engine
Two in phase speakers are set up in a field 10.0 meters apart. you stand directly in between the speakers with one on your left and the other on your right. What frequency is being emitted by both s
A 10.0-m long wire whose total mass is 39.5 grams is under a tension of 577N. Where do the pulses first meet
A 1.83-kg solid sphere (radius = 0.141 m) is released from rest at the top of a ramp and allowed to roll without slipping. What is its rotational kinetic energy
A flask is filled with 1.50 L (L = liter) of a liquid at 98.0 °C. What is the coefficient of volume expansion of the liquid
A simple pendulum consists of a ball connected to one end of a thin brass wire. Determine the change in the period of the heated pendulum
A monatomic ideal gas that is initially at a pressure of 1.41 * 10^5 Pa, How much work is done by the gas during the compression
Your friend recently purchased a musical instrument that generates sound waves using several strings. Determine the length of the strings of this instrument
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
A diverging lens (f = â€"12.0 cm) is located 23.0 cm to the left of a converging lens (f = 35.0 cm). Determine the distance of the final image relative to the converging lens
An airplane is flying with a velocity of 99.0m/s at an angle of 26.0° above the horizontal. When the plane is a distance 121m directly above a dog that is standing on level ground, a suitcase drop
The infamous chicken is dashing toward home plate with a speed of 5.6m/s when he decides to hit the dirt. The chicken slides for 1.0s , just reaching the plate as he stops (safe, of course).
The distance between the lenses in a compound microscope is 18 cm. The focal length of the objective is 1.5 cm. what must be the focal length of the eyepiece
A 3.5-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,063oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
Tetchnetium is a radioactive isotope that emits a gamma ray with a half life of 6 hours. what fraction of the original dose remains in the body 24 hours after preparation
UVB photons have a wavelenghth of 300nm. what is the frequency of UBV photons, What is the energy of a UBV photon in JOULES
How much heat flows from 1.0 kg of water at 40.0 degrees C when it is placed in contact with 1.0 kg of 16.0 degrees C water in reaching equilibrium, what is the change in entropy due to this heat tr
A 3.1 kg block of copper at a temperature of 72 C is dropped into a bucket containing a mixture of ice and water whose total mass is 1.2 kg. How much ice was in the bucket
A 25 g glass tumbler contains 410 mL of water at 24 °C. If two 20 g ice cubes each at a temperature of -3 °C are dropped into the tumbler
The specific heat of a certain metal can be determined by measuring the temperature change that occurs when a piece of the metal is heated, What is the specific heat of the metal
A simple harmonic oscillator takes 26 seconds to undergo 22 complete oscillations. What is the period of the oscillator