how much heat is necessary to change the temp of 35g of aluminium at 90C to 12C in cal.

Q: A wire 1.37 m long carries a current of 15.6 A and makes an angle of 46.5° with a uniform magnetic…

A: Length of wire is Current is Magnetic field is Angle between magnetic field and wire's length is…

Q: Air Cart on Pulley Experiment: a. Draw the free body force diagram of the dangling mass (m₂), when…

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Q: When 4960 J of heat are added to a 0.217-m-long silver bar, its length increases by 6.25 x 103 m.…

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Q: Jane took 10 minutes to drive her boat upstream to water-ski at her favorite spot. Coming back later…

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Q: The figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk…

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Q: The mass density of a semicircular wire of radius (Figure 3) varies directly as the distance from…

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Q: The figure below shows a thin converging lens for which the radii of curvature of its surfaces have…

A: We know that the lens maker formula is given as: So, for the given focal length, the refractive…

Q: It has been speculated that gravity does not truly exist as a force in and of itself, but is instead…

A: The electrostatic force or coulombic force is the force responsible for the repulsion of…

Q: An R=145k resistor and a C=22μF capacitor are connected in series with a open switch. The capacitor…

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Q: If a soccer ball is kicked at a projection angle of 30° with an initial speed of 20m/s, How high…

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Q: 1. A 104 kg person and their 10 kg dog are 12.5 m away from each other. If you approximate them both…

A: Mass of the person M = 104 kgMass of the dog m = 10kgSeparation, r = 12.5 mForce, F = ?

Q: When a spring is stretched by 1.00 m, its spring potential energy is 20 J. What is the spring…

A: The stretching in spring is The spring potential energy is Note:Find:(a) Spring constant.(b)…

Q: A flywheel slows from 662 to 400 rev/min while rotating through 38 revolutions. a. What is the…

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Q: Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be…

A: The differences in the two arrangements are shown belowIn first case the slab has a total length…

Q: PLEASE ANSWER IN SCIENTIFIC NOTATION USING E IF YOU CAN NOT ANSWER ALL OF THEM DO NOT RESPOND A…

A: 1)Write the lens equation and substitute the corresponding values to calculate the distance of the…

Q: An optometrist has a patient who needs bifocals. The patient can clearly see an object when it is…

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Q: It's been a great day of new, frictionless snow. Julie starts at the top of the 60° slope shown in…

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Q: A block is being pulled on an incline at a constant speed on the Moon. If the mass of the block is…

A: Draw the free-body diagram of the block.

Q: If I have a 125g sample of lead at 85 degrees C and a 320 g sample of silver at 34 degrees C , and…

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Q: 8. If a pipe has a diameter of 15.0 cm at one end and 9.0 cm at the other end, then what is the…

A: Equation of continuity is a principle in fluid dynamics and is based on conservation of mass. It…

Q: A beam of light shines on an equilateral glass prism at an angle of 41° to one face. 1) What is the…

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Q: A clock is showing the time as exactly 3:00 p.m. and 25 s. If the tip of the second hand is directly…

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Q: Feeling lazy, John tries to slide a box 3.5 m across the floor to his co-worker. If the coefficient…

A: Distance between box and his co-worker, d = 3.5 mCoefficient of friction, Initial speed of the box =…

Q: An astronaut is being tested in a centrifuge. The centrifuge has a radius of 11.0 m and, in…

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Q: Based on this FBD, select the 4 statements that accurately describe the motion of the object: Ffrict…

A: If we see clearly then Length of Fnorm is equal to Fgrav Length of Ffrict is applied in…

Q: Results Given Vector Vector A Vector B Resultant Equilibrant Mass (kg) 1.2 0.55 1.75 1.35 Force (N)…

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Q: the second part is inc

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Q: ure k = 80,000 N/m m = 100 kg 10 m 130⁰ 1 of 1

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Q: The rotational velocity of a spinning disk decreases from 6 rev/s to 3 rev/s in a time of 12 s. What…

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Q: At the center of a 40.1 m diameter circular (frictionless) ice rink, a 72.8 kg skater travelling…

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Q: The Michelson interferometer can be used to measure the index of refraction of a gas by placing an…

A: Wavelength of light = Length of tube = L = 5.40 cm Fringe shift (number) = N = 168

Q: A wall in a house contains a single window. The window consists of a single pane of glass whose area…

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Q: A 0.23 kg mass is suspended on a spring which stretches a distance of 5.3 cm. The mass is then…

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Q: 2. Before 50.0 kg V₁ = 2.00 m/s V₂ = 0 m/s 25.0 kg €

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Q: The figure below shows a box with mass m = 5.6 kg pulled up a surface inclined at an angle of 8 =…

A: Mass of the block Angle of inclination of the ramp Magnitude of force parallel to the ramp…

Q: A cart of mass M1 = 3.0 kg and initial speed = 3.0 m/s collides head on with a second cart of mass…

A: In the question, it is given thatCALCULATION OF

Q: Consider a uniformly charged solid sphere of radius R and total charge q centered on the origin. Use…

A: We have givenThe radius of the sphere is R and total charge is Q centered on origin.We have also…

Q: Two forces are applied to a merry-go-round with a radius of 1.2 m. One force has a magnitude of 80 N…

A: radius = r = 1.2 mtwo forces F1 = 80 N (UP)F2 = 50 N ( Down)

Q: A cell membrane can be modeled as a capacitor. The thickness of membrane is 7.0 nm Part A How much…

A: Thickness of the member Diameter of the cell Potential difference Energy released from hydrolysis of…

Q: A current loop is in the magnetic field as shown. Which way will this current loop rotate? the loop…

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Q: Consider two different examples of the dot product between vectors, a force and a displacement 4,.…

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Q: What was the acceleration for the bean bag when dropped from each height? Trial 1 Trial 2 Trial 3…

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Q: A flatbed truck is carrying a crate along a level road. The coefficient of static friction between…

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Q: The reason that curves are banked is because the normal force acting on the car is reduced. the…

A: Given that the curves are often banked To determine thatThe reason that curves are banked is…

Q: An ideal gas undergoes the process a→b→c→a shown in the pV diagram. In the figure, Pa = Pc = 240…

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Q: A manufacture claims that a teakettle has an output of 5.2kw. A test is done by heating 1liter of…

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Q: v(t) = a cos(Bt) + 8 sin(et) v(t) = at v(t) = ßt²

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Q: Part (a) of the drawing shows a rectangular bar whose dimensions are Lox 240x34o. The bar is at the…

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Q: projectile motion of the ball is shown below. at is the time of flight in seconds? und your answer…

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Q: A house at the bottom of a hill is fed by a full tank of water 6.0 m deep and connected to the house…

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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.