An insulated cup of water (145g water) at room temp (20C), is warmed by a 25g sample of aluminum at 100C and cooled by a 40g ice cube at 0degC. What is the final temperature of the water.

Q: The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A.30 caliber…

A: The mass of the bullet is The speed of the bullet relative to the muzzle is The mass of the rifle is…

Q: A 2.00-kg ball is raised from the ground to a bench 1.49-m high from the ground. The work done by…

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Q: A 33.2 kg boy and a 22.0 kg girl are standing at the edge of a 161 kg merry-go-round of radius 1.41…

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Q: High-speed stroboscopic photographs show that the head of a 250-g golf club is traveling at 54 m/s…

A: Mass of golf club = m1 = 0.250kgVelocity of golf club u1 = 54 m/s

Q: 5) During a rockslide, a 520 kg rock slides from rest down a hillside that is 500 m long and 300 m…

A:

Q: A hand-pumped water gun is held level at a height of 0.63 m above the ground and fired. The water…

A: The height of the hand pump is y = 0.63 m.The horizontal distance moved by water x = 7.6 m.

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: A cheetah can maintain its maximum speed of 95km/hr for 27.0 seconds.what minimum distance must a…

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Q: A magnetic field is used to suspend a wire of mass 5.0x10-2 kg and length 0.12 m. The wire is…

A: The mass of the wire is The length of the wire is The current in the wire is

Q: A rock of mass 0.432 kg falls from rest from a height of 17.4 m into a pail containing 0.373 kg of…

A:

Q: Which of the following objects are in free fall? a ball that was thrown at an angle below horizontal…

A: An object that is moving only because of the action of gravitational force is said to be free…

Q: Suppose you get a slope of 0.168 for the 2.00o ramp's linearized distance vs time graph. What is the…

A: Slope of distance vs time graph is Angle of inclination is Note:Gravitational acceleration is…

Q: 23.46 CP A point charge q1 = +5.00 μC is held fixed in 91 space. From a horizontal distance of 6.00…

A: q1 = 5 x 10-6 Cq2 =  2 x 10-6 Cinitial distance = r1 = 6 cm = 0.06 mVi = 40 m/sVf = 25 m/s

Q: Two blocks are connected by a massless rope. The mass of the block on the table is m1=5.5 kg and the…

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Q: The figure below shows a box with a mass of m = 3.90 kg on a ramp inclined at an angle of 35.0°. The…

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Q: Romeo (75.0 kg) entertains Juliet (49.0 kg) by playing his guitar from the rear of their boat at…

A: a)The center of mass of the boat, Romeo and Juliet system can be given as,Here, m and x represent…

Q: Scientists have found evidence that Mars may once have had an ocean 0.500 km deep. The acceleration…

A: Write the given values to the suitable variables.Here, d is the depth,  is the acceleration due to…

Q: a helicopter descends from a height of 600 m with uniform negative acceleration, reaching the ground…

A: The displacement of the helicopter is The acceleration of the helicopter is The time taken by the…

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

A:

Q: how far does block 2 travel after the collision

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Q: In a series circuit, is the total resistance equal to the product, sum, difference, or quotient of…

A: In a series circuit, the total resistance is equal to the sum of the individual resistances. This is…

Q: 1) Let the elevator have a mass of 1,275 kg and an upward acceleration of 2.9 m/s. Find T. N s your…

A: Mass = m = 1275 kg

Q: To get up on the roof, a person with a mass m = 71 kg leans an aluminum ladder (mass 10.5 kg and…

A: Given data:The mass of person, The mass of aluminum ladder, The length of ladder, The diameter of…

Q: You have submerged a cubic box in sea water (Psea = 1030 kg m-³). The box has side length 1 = 20 cm,…

A: // As per our guidelines we were instructed to answer only first three sub-parts of the question in…

Q: Provide the angular momentum (as multiples of ℏ) of an electron in the orbitals 4d, 2p, and 3p.…

A: We have to determine a) orbital angular momentum b) Radial node For,4d2p3p

Q: What is the net torque about on the bar shown in (Figure 1) about the axis indicated by the dot?…

A:

Q: Q1/A connecting rod weighing 21.35 N oscillates 53 times in one minute when suspended as shown.…

A: If the rod is displaced at some angle and then allowed to oscillate, then it acts as a physical…

Q: Please answer the following question(s): 1. C= y e= A+B+C =0 Ꮎ = ? C = ? m m 21° A = 80 m B = 105 m…

A: Now

Q: If an object is moving in a straight line due west with its speed changing, the net force acting on…

A: 1) an object is moving in a straight line due west with its speed changing2)A shoe sits on a ramp…

Q: m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C)…

A: length, L = 138 km width, w = 28.1kmheight, h = 247 m density, d = 917 kg/m3 Annual energy = 9.3 x…

Q: Part A What is the angular displacement of the wheel between t = 5 s and t = 15 s? Express your…

A: The graph between angular displacement and time is shown in figure-

Q: Calculate the angle a person needs to lean from the vertical when 1. walking a 14 m (radius)…

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Q: Scientists have found evidence that Mars may once have had an ocean 0.500 km deep. The acceleration…

A: Write the given values to the suitable variables.Here, d is the depth,  is the acceleration due to…

Q: 14. On a midway ride called The Round Up, participants climb into a cylindrical appar and stand…

A: mass of rider, m = 60.0 kgradius of round up ride, r = 8.0 mtime period of ride, t = 4.0 s.

Q: As you go down a rough slide and speed up, the energy transformation is O Ug → K OK → Ug O Ug →K+…

A: surface is rough hence frictional force is workingat the top You have potential energyAt the bottom…

Q: Consider as a system the Sun with Mars in a circular orbit around it. Find the magnitude of the…

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Q: The lateral head and the medial head of the gastrocnemius muscle pull on the Achilles tendon, as…

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Q: 5. For the circuit at right, write the nodal equation for the top-middle node. Clearly label the…

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Q: How many tightly bound molecules could a single ray of frequency 2.56 x 1020 Hz break apart? The…

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Q: Which energy diagram represents the energies of a 50 kg object as it falls from the top of Niagara…

A: Mass (m) = 50 kgHeight (h) = 100 mRequired:Kinetic energy, gravitational potential energy and total…

Q: how do you locate the center of mass (CM) of a right-angled triangle without using calculus?

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Q: The dielectric in a capacitor serves two purposes. It increases the capacitance, compared to an…

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Q: The coefficient of kinetic friction between the 45-kg crate and the ground is μ = 0.3. The crate…

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Q: A 65.0-kg file cabinet is sliding down a rough ramp for a distance of 5.00 m from rest as shown. The…

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Q: A ball of mass m moving with velocity v strikes a vertical wall as shown in (Figure 1). The angle…

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Q: Find the frequency of an electromagnetic wave with wavelength 460 nanometers. (in Hz) OA: 1.367x1014…

A: Wavelength, λ = 460 nm = 460×10-9 mFrequency, f = ?

Q: Super Invar, an alloy of iron and nickel, is a strong material with a very low coefficient of…

A:

Q: Which of the following is least reasonable regarding light waves?    a) Ultraviolet light has a…

A: light wave

Q: Three resistors in series have an equivalent resistance of 95 Ω, and two of them are 25 Ω and 35 Ω,…

A:

Q: 2. Consider the following set of blocks being pulled across a rough horizontal surface by a constant…

A: R is the reaction force between m and 2m