How many Joules are required to melt 8 kg of aluminum if it starts at 20°C ? For aluminum the specific heat is 900 J/kg °C and Lf = 321,000 J/kg and the melting point is 660 deg C.

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Q: A bullet having mass m and velocity v collides with a block at rest having mass M. Mass M is…

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Q: Find the magnitude of the difference between the total downward force at the top of the cube, and…

A: GIVEN: Density, ρ = 1039 kg/m³ L = 0.442 m Mass, m = 7 kg Atmospheric pressure, Po = 1 atm =…

Q: A sinusoidal wave is travelling on a string under tension T = 8.0(N), having a mass per unit length…

A: Given:- A sinusoidal wave is traveling on a string under Tension T = 8.0 N  The mass per unit length…

Q: a) b) c) Determine the index of refraction, nx, for the thin film of liquid "x" Determine the angle…

A: Given, nair = 1.00nwater = 1.33λWater = 480 nmvair = 3.00×108 m/svx = 2.36×108 m/s We know that…

Q: Questions 6 and 7 refer to the following arrangement: Charge q1 (+5x10-6 C) is at the origin of the…

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Q: Questions 3and 4 For the figure shown answer the following: 3. The location of x-coordinate (X) of…

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Q: Q10: A block having a mass of 1.0 kg is given an initial velocity VA-1.6 m/s to the right and…

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Q: The Earth has a mass of 5.97 × 10^24 kg and the Moon has a mass of 7.36 × 10^22 kg. The average…

A: Mass of the Earth = 5.97 x 1024kg Mass of the Moon = 7.36 x 1022kg Average Distance between Earth…

Q: Problem 5: A student walking to class on a cold day (To = -5 °C) find a silver ring with an inner…

A: Given:-  A silver ring with a diameter of D and a coefficient of linear expression of α T0= -5°CD =…

Q: A bullet of mass 0.018 kg traveling horizontally at a high speed of 200 m/s embeds itself in a block…

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Q: A car is traveling around a circular track of 690-ft radius. If the magnitude of its total…

A: The rate at which the car is changing its speed, also known as the centripetal acceleration, can be…

Q: Part A What is the angle between vectors E and F in the figure? (Figure Express your answer in…

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Q: A roller coaster car with mass m and initial velocity v is at height h above the ground. Calculate…

A: Given  Height above the ground, h = 1.00E+02 = 100 m  Mass of car , m = 5.00E+02 = 500 kg  Speed , v…

Q: A silver block, initially at 56.9 ∘C∘C, is submerged into 100.0 gg of water at 24.1 ∘C∘C, in an…

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Q: Which of the following description about specific gravity is NOT true? O High specific gravity will…

A: The density of a substance is defined as the mass per unit volume. The unit of density is kg/m3,…

Q: Malinan Leannig At 1 atm, how much energy is required to heat 47.0 g H₂O(s) at -20.0 °C to H₂O(g) at…

A: Given:-  The mass of water is m= 47 g  The initial temperature of the water is Ti=-20°C The final…

Q: As shown in the figure below, two reversible cycles arranged in series each produce the same net…

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Q: D. Zero Q2: A system consists of three particles located as shown. The masses of the particles are…

A: Given,  m1=m2= 1 kg m3= 1.5 kg We Need to calculate,  Centre of mass of the system rCM=?

Q: The muon is unstable and has a mean lifetime of about 2.2 microseconds. A muon is an elementary…

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Q: Find the altitude in feet at which the pressure is 2.983386948 psi. Find the altitude in feet at…

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Q: What are the position, velocity and acceleration of an object vibrating at the end of a horizontal…

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Q: projectile is fired straight up in the air and is traveling at the same speed for the first 10…

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Q: One mole of an ideal gas is taken through the cycle as shown in the figure. The process from A to B…

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Q: A child on a bicycle speeds up from rest to 3.50 m/s in 4.00 s. The radius of the bicycle's tires is…

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Q: do 5 different ray drawings of convex lenses with the 5 object placed in different points. 0 2F¹ 1…

A: We are given ray diagrams for 2 different cases. The lens is given as convex lens. There are 3…

Q: A force of 20 N moves an object in the direction of the force.  The work done when the object moves…

A: Given data:  Force (F) = 20 N Initial position = 2.0 m Final position = 4.0 m Required: The work…

Q: 2. After a perfectly inelastic collision between two objects of equal mass, each having initial…

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Q: projectile is fired straight up in the air and is traveling at the same speed for the first 10…

A: Speed is same speed for the first 10 seconds. In first case: Distance = 110 ft Time = 3 s In second…

Q: Find gage(manometric) pressure p in Pascals if U-tube manometer fluid density Ro=1000 (kg/m3) and…

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Q: Rx = 3 & Ry = -84. Determine the magnitude and angle of R. Your angle will be between 0° & 360° with…

A: GivenRx=3Ry=-84R=Rx2+Ry2  =32+-842  =84.054

Q: Example The figure below shows the cross section of a wall made of pine of thickness La and brick of…

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Q: An 89.6 kg sack of rice rests on a horizontal surface. What is the minimum horizontal force that is…

A: Given data:  Mass (m)= 89.6 kg Coefficient of static friction (μ) = 0.43 Required: The minimum force…

Q: A rod 12.0 cm long is uniformly charged and has a total charge of -24.0 µC. Determine the magnitude…

A: Solution - Electric field on the point of the axis  = Length of the rod =  l Distance of the nearer…

Q: If forces of 65.0 N [E] and 82.0 N [S] act on an object, what is the net force acting on the object?

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Q: 5. A fire extinguisher has an internal pressure of 300 psi at 25°C. What is the pressure at it is…

A: Dear student,  Since both questions are different as per guidelines we can author only first one…

Q: Suppose that you pull a rope BA, exerting a force F = 50 N at point B. What are the vector…

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Q: His pointing 53° relative to the HORIZONTAL in quadrant 1. Hx = 21. Determine the magnitude and…

A: Given:- The H→ is pointing at an angle of θ=53° relative to the horizontal. The x component of the H…

Q: If the length of a second pendulum is increased by 1%, how many seconds will it lose in a day?

A: Given,     length of the speed pendulum is increased by 1%.      we need to calculate       The…

Q: Students are performing an experiment with the setup shown above, where a block of mass M sits on a…

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Q: are these operators hermitian? 2), 316 -i 6 2+31 6 2-3√17 3) P+ 4) 5² 12/8 12 12 5)5x 12 12 S 2-41…

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Q: A block of material has a volume of 2 m3. It has a mass of 1 × 104 kg. Calculate the density of the…

A: Givenvolume, v=2 m3mass, m=1×104 kgasdensity, d=mass (m)volume(v)

Q: The Merlin rocket engines developed by SpaceX can produce 7.44 x 105 N of instantaneous thrust with…

A: Given value--- instantaneous thrust = 7.44 × 105 N. instantaneous speed = 3.05 × 103 m/s. We have…

Q: the properties of the dot product to show that for any vectors u and v. |u+v|²+ |u-v² = 2|u² +2|v|².…

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Q: Plot the dependence P=f(V) for three different values of the amount of gas n. What does it mean? It…

A: According to Boyle's law, the pressure exerted by a gas is inversely proportional to the volume it…

Q: The quarterback Q throws the football when the receiver R is in the position shown. The receiver's…

A: This problem can be solved using kinematic equations and First, we can use the…

Q: A bag of rocks has a mass of 6.4 kg. What is its weight here on the Earth?

A: Solution

Q: A proton (q = 1.6x10-19 C) moves along a uniform E-field (3.0 v/m) for a distance of 10 cm. What is…

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