A Cook leaves a plastic spoon and a wooden spoon in a pot of hot water for the same length of time , the spoon have the same mass if plastic has a higher specific heat capacity than wood , which spoon will have a larger change in temperature ? Explain why .

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Q: 20. Ware to add angular momenta j,-1 and j; -1 to formj=2, 1, and states. Using either the ladder…

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Q: 4. Bodies A and B are moving in the same direction in a straight line with a constant velocities on…

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A: Given in question - " If the electrons had positive charge and protons negative charge." Solution -…

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Q: A thin, convergent lens has a focal length of 8.10 cm. If the object distance is 30.0 cm, find the…

A: Given: The focal length of the converging lens is 8.1 cm. The distance of the object is 30 cm.

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Q: make answer clear and visable (box answer or circle it undeline it etc...)

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Q: An electric iron of resistance 20 ohms takes a current of 4 A. Find the heat developed in 28 s.

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Q: Problem 21:  Suppose a Carnot engine has an efficiency of 42.5 % and a cold reservoir temperature of…

A: In the question, its given that Efficiency of Carnot engine (ηc) = 42.5 % Cold reservoir temperature…

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Q: What is the refractive (focusing) power for the following lenses: a. A converging lens with focal…

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Q: Topic : GENERAL PHYSICS 2 ( TIME DILATION AND LENGTH CONTRACTION) Give 1 sample problem of Length…

A: Length contraction L is the shortening of the measured length of an object moving relative to the…

Q: A high-speed electron having a mass of 9 × 10−31?? is moving at right angle to 0.75-T magnetic field…

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Q: QUESTION 10 A 5.33x103 kg car moves on a 66.87 m radius curve road. Assuming an unbanked curve, find…

A: Given data- mass m=5.33×103 kg radius R=66.87 m static coefficient of friction μs=0.420

Q: if a mass of a person is 55kg. What is his weight on the moon? gm= ge/6 Select one: a. 150N O b.…

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Q: Box B is pushed with a force 462N[>] parallel to the ramp. Box A has a mass of 32.0 kg and Box B has…

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Q: 2. A 0.225 kg sample of tin initially at 97.5 °C is dropped into 0.115 kg of water. The initial

A: GivenMass of tin sample, mtin=0.225 kgTemperature of tin sample, Ttin=97.5°CMass of water, mw=0.115…

Q: 24. A water balloon weighing 8.6 N rests on a table. The balloon has an area of 6.7 x 10 m² in…

A: Given: The weight of the balloon is 8.6 N. The area of contact with the table is 6.7x10-3 m2.

Q: An ideal gas (y = 1.4) follows the cycle given by the table below. State P (atm)| V (L) 100 1 1.0…

A: a) Draw the pressure-volume diagram of the cycle.

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Q: es of 2.0 Ω, 4.0 Ω, and 6.0 Ω and a 24-V emf device are all in p

A: GivenResistances of 2.0 Ω, 4.0 Ω, and 6.0 Ω emfV=24 V

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A: Given:-  The circuit as  Find:-  a) Find the potential of point a with respect to point b in…

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Q: A car moving at 15 m/s rounds a semi-circular bend of radius 60 m.  What is the centripetal…

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Q: EQUIVALENT RESISTANCE AND CURRENT IN A PARALLEL CIRCUIT Three resistors, 15.0 0.30.0 Q, and 60.0 Q…

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Q: The speed of light c = 3 x 10^8 m/s. A proton is moving north at 0.75 c (75% the speed of light),…

A: velocity of proton = 0.75 c , northwards magnetic field (B) = 8.3 T , due east

Q: 1. Two masses experience a perfectly elastic collision in 1D. Find their respective final velocities…

A: Given: The intial velocity of the mass m1 = 1 kg is 50 m/s in the right direction. The initial…

Q: * Question Completion Status: and an Oxygen H. QUESTION 5 We have two containers: one is filled with…

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Q: A sledge loaded with bricks has a total mass of 18.8 kg and is pulled at constant speed by a rope…

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Q: An M = 1.35 kg block is placed on top of a vertical spring, whose force constant is k = 12,400 N/m.…

A: Given  Mass of the block = 1.35 kg Force constant (k) = 12400 N/m compression in spring d = 0.0230 m…

Q: Show (in diagram) that when a body of mass m is dropped from a height h, the sum of its kinetic and…

A: Kinetic energy = (1/2) mv^2 Potential energy = mgh M= mass h = height v = speed

Q: A 120 V house circuit fused for 25 A has operating on it the following: two 75 W bulbs, a 1500 W…

A: If resistance is connected in parallel with the battery then   Power loss, P =V2RR =V2P

Q: QUESTION 24 The first law of thermodynamics is AU=- W+0 We here consider an ideal gas system which…

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Q: A spring with a mass of 10 kg has natural length 1 m. A force of 30 N is required to maintain it…

A: 1) Spring constant k is given by F=kx⇒k=Fm=301.5=20 N/m

Q: 2) The blood flows from the blood vessel, which has a diameter of d, into tubes B and D, each of…

A: To solve this question, we must use the equation of continuity for a streamlined flowing liquid . It…

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Q: Which statement describes a condition when magnetism exists? >Magnetism exists when electric charges…

A: Moving charges create electric field which in turn creates magnetic field, both of which are…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.