The specific heat of water is 1.0 cal/gram oC. 100 gram hot water at 100 oC is mixed with 300 gram cold water at 20 oC. What is the final equilibrium temperature (in oC) of the mixed water?

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A: Torque due to current coil can be given as,  τ = NiABsinθ Where,  N = number of turns i = magnitude…

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Q: Learning Goal: To understand how to use conservation of angular momentum to solve problems involving…

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Q: Bernoulli. Which of the following observations follows from Bernoulli's equation? O A. Fluid flow…

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Q: Two magnetic dipoles m1 = m1ˆz and m2 = m2ˆz lie on the z axis, separated by a distance r. Find the…

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Q: What is the magnification of an astronomical telescope whose objective lens has a focal length of 78…

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Q: A pilot heads his jet due east. The jet has a speed of 450 mi/h relative to the air. The wind is…

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Q: Banked Curves: Two cars go around banked curve at the proper speed for the banking angle. One car…

A: We are given two cars, one with new tires and other with bald tires. We need to tell which car will…

Q: Two waves, of the same wavelength are travelling in opposite directions.  One wave has an amplitude…

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Q: Using the density table provided in the directions or the density table in the unit's overview, find…

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Q: A 1.28-kg object is suspended from a vertical spring whose spring constant is 116 N/m. (a) Find the…

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Q: How much energy is needed to melt 1 kg of ice? Heat of Fusion of water is 333 kJ/kg, melting point…

A: Given: The mass of the ice is 1 kg. The latent heat of fusion is 333 kJ/kg.

Q: 550 N 65° Determine the x, y, and z components of the 550 N force. Z Y 35° X

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Q: A block 3 cm x 4 cm is partially immersed to a depth of 6 cm in a pail of water. (a) What is the…

A: Assume that the height of the block is 9cm a) mg =ρgV →ρ0V0g = ρgV →ρ0 = ρV/V0     =…

Q: A certain isotope has a half-life of 9.82 h. What is its decay constant in s-1?

A: Given, The half-life of an isotope, t12 = 9.82 hr

Q: A nucleus of 238 Np captures a thermal 239 Np. neutron to form a nucleus of 239 What is the…

A: Given: Nucleus,  N238p  Nucleus, N239p To Find: excitation energy in MeV

Q: An athlete can shoot an arrow at a speed equal to 4 times his speed while running. At what angle…

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Q: A gas expands from I to F along the three paths indicated in the figure below. Calculate the work…

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Q: A 1500-kg satellite orbits a planet in a circular orbit of radius 6.2 × 106 m. What is the angular…

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Q: A U-tube open at both ends is partially filled with water (Figure (a)). Oil (? = 750 kg/m3) is then…

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Q: Satellite Motion: A satellite orbits the Earth once every 6.0 hours in a circle. G= 6.67 x 10-11…

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Q: What are solar cells, how do they work?

A: Given that Solar cells To determine that - What are solar cells, how do they work?

Q: A certain isotope has a half-life of 6.4 h and an atomic mass of 87.29 u. What will the activity in…

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Q: Two vectors A = aî - 25+ Â and B = 2î+5-4k are given. If A B = 4, determine a? 01 O 5 O 0 O 3 O 4 02

A: Given             A →=ai^-2j^+k^             B→ =2i^+j^-4k^             A→.B→= 4

Q: The picture shows a system composed of a swivel chair, a person on the chair and the bicycle wheel…

A: moment of inertia of person and swivel chair is Io . moment of inertia of bicycle wheel about its…

Q: A runner weighs 550 N and 71% of this weight is water. (a) How many moles of water are in the…

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Q: Part (a)  Calculate the mass, in grams, converted to energy by the fission of 0.85 kg of uranium.…

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Q: ssm A patient recovering from surgery is being given fluid intravenously. The fluid has a density of…

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Q: On the diagram above extend each force of gravity vector so that it reaches the floor. The "pivot"…

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Q: Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.400 mm wide. The…

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Q: In Concept Simulation 10.2 you can explore the concepts that are important in this problem.…

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Q: Problem 2. A wire carries a 7.00-A current along the x axis, and another wire carries a 6.00-A…

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Q: Consider the change in the internal energy of a system.  what is the change in the internal…

A: Given data: The work done by the system, δW=4.75×105 J   The heat supply to the system, δQ1=3.05×106…

Q: The rate of decay of a radioactive material is directly proportional to the amount of the material…

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Q: A majorette in a parade is performing some acrobatic twirlings of her baton. Assume that the baton…

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Q: A plane electromagnetic sine wave is shown propagating in the x-direction. If the wavelength is 50 m…

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Q: A majorette in a parade is performing some acrobatic twirlings of her baton. Assume that the baton…

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Q: 1. What kind of mirror does a dentist use when he wants to observe a magnified image of the took,…

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Q: A ball falls from height of 20.0 m, hits the floor, and rebounds vertically upward to height of 15.0…

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Q: Explain why electrical conductivity in semiconductors depends more on temperature than electrical…

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Q: Mechanical] A pressurized water tank supplies water to a hose. The tank has a pressure of 155 kPa…

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Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 3.10 s later.…

A: To solve this we use one of the equations of motion, s = ut+12at2, where s = the distance travelled,…

Q: In the following cartoon, the system is a swivel chair, a person is on the chair and the bicycle…

A: Given : moment of inertia of person and swivel chair is Io . moment of inertia of bicycle wheel…

Q: A 15 g bullet is fired horizontally into a block of wood with a mass of 2.5 kg an embedded in the…

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Q: F(r)=nrn-²r where, as usual, r = = x + y + z2 and r = x² + y² + z² and n is an integer.

A: For a force is conservative, its curl must be zero. That is, ∇×F→=0 where the operator ∇ is defined…

Q: Distinguish carefully between the following terms: (a) wavelength and frequency, (b) wave properties…

A: Wavelength is defined as the distance between the two consecutive crests or troughs of a wave.…

Q: A force F = (8 î – 5 ĵ) N acts on a particle that undergoes a displacement Ař = (4 î + ĵ) m. (a)…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.