Calculate the minimum amount of energy, in joules, required to completely melt 200g of gold initially at 25.0°C. Melting point of gold is 1337K, heat of Fusion LF is 63 kJ/kg, Boiling point of gold is 2973K, heat of Vaporization Ly is 1576 kJ/kg and specific heat capacity is 130 J/kg.K. An aluminum-alloy rod has a length of 20.00 cm at 23.0°C and a length of 20.05 cm at the boiling point of water. i) What is the length of the rod at the freezing point of water? ii) What is the temperature if the length of the rod is 20.02 cm?

Q: What is the meaning of physics

A: Physics is a  branch of science deals with the nature and properties of matter and energy. In the…

Q: A body of mass 2 kg is driven by an engine delivering a constant power of 1 J/s. The body starts…

A:

Q: om surfaces. In a typical u ed image, the wavelength

A: Given: Human range of hearing is 20,000 Hz. Speed of waves travel is v=1500 m/s. Wavelength is 1 mm

Q: 3. A box (mass = 100 g) is initially connected to a compressed (x = 80 cm) spring (k = 100 N/m) at…

A:

Q: A sphere has a surface uniformly charged with 1.00 C. At what distance from its center is the…

A: Given:  In this question, the given details are, A sphere has a surface uniformly charged with…

Q: Use Newton's law of gravity to calculate the force of gravity between: a) The Earth and the Moon. b)…

A: Newtons law of gravity is given by: F=Gm1m2r122F= gravitational forceG= universal gravitational…

Q: Calculate the binding energy of the a particles, and if its moved through the gold 179 foil 1Au, so…

A: i) Binding energy is the energy required to break down a nucleus into its components (neutrons and…

Q: 559) See Fig 559. The curve is described by V(t)-Vm*cos (w*t+theta) + Vshift. Given V1-45 volts,…

A: Given:                   V(t)=Vmcos(ωt+θ)+VshiftV1 =45 voltsV2=-V1V3=7.8750 voltsT=2.500…

Q: As shown in the right figure, a collimated light beam with intensity of I, = 100(W/m²) passes…

A: We know that here in the figure we have given that A collimated light beam intensity of I0 and it…

Q: 1. Determine the electrical force of attraction between two balloons with separate charges of +3.5 x…

A:

Q: 8. Determine the Magnitude of the Resultant Force acting on the Screw Eye and its direction measured…

A: Given data: The force in horizontal direction is F1=400 N. The force at θ=40° is F2=600 N.

Q: Solve the question on a paper and upload the paper for evaluation: A wave is modeled with the wave…

A:

Q: Analyze the position over time graph below. Which segments(s) show a non-zero constant velocity.…

A: in this question  we analyze the graph .

Q: A person leaps from an airplane 9000 feet above the ground and deploys her/his parachute after 11…

A: First, let's calculate how fast the person is falling when the parachute is deployed, which happens…

Q: 2m A VA B m Sphere A of mass 2m initially moving with velocity va = 6 ft/sec collides with sphere B…

A:

Q: Fill in the blank with correct answers: A B Frequency Series Resonance -Impedance vs. Frequency. The…

A: Impedance of an ac circuit is given by,  Z = ( R2 + ( XL - XC ) 2 ) 1/2 R is resistance XL is…

Q: A flower pot is thrown down at a 4.00m/s and hits the ground in 8.00s. From what height was it…

A: initial speed (u)=4 m/s  time to reach ground(t)=8 sec  acceleration due to gravity (g) =9.8m/s2 let…

Q: $800.45 equivalent in pennies. How do I solve this

A: V=800.45 $

Q: The Hamiltonian for a 3-D isotropic harmonic oscillator is given by 1 •z [p² + p² +p² + µ² (q? + q²…

A: The Hamiltonian is given as H=12p12+p22+p32+μ2q12+q22+q32 The derivative of Hamiltonian with respect…

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: Directions: Choose the appropriate phrase from the box that depicts the best meaning of the diagram.…

A: answer of diagram 1 is (B)  answer of diagram 2 is (A)

Q: 15). What is an object's acceleration that takes 550.0 meters to go from 6.0 m/s to 85.0 m/s?

A:

Q: A ball is dropped from the top ofa 100 m high tower on a 1 planet. In the last s before hitting the…

A:

Q: 2. In a region0 w, the wave function is y3(x) = 0. A. Applying the boundary conditions at xx = a,…

A:

Q: An arrangement of source charges produces the electric potential V=5000x2 along the x-axis, where V…

A: Given: Electric potential is V=5000×2 Charged particle is 15 nC Turning points at ±8.4 cm

Q: rge is half the final value. The c #.6 μF AUF

A: Given: Resistance is 720 Ohm Time is 10 ms t=10 ms=10×10-3st=0.01 s

Q: 1. What is the velocity of a car that traveled a total of 65 km east in 2.3 hours

A:

Q: or

A: Given: Length of solenoids are 15 cm Number of turns are 350 Current is 4 A

Q: A 18 g ball of clay traveling east at 4.0 m/s collides with a 30 g ball of clay traveling north at…

A: Given: East- Mass of clay ball is 18 g Velocity is 4 m/s After collides, North- Mass of clay ball is…

Q: 6.59 Calculate the sound velocity for a monatomic fcc crystal along (100) and (111) directions.…

A: Given: Mass of the atoms m=9.23×10-23kg Lattice constant  a=5.54A˙=5.54×10-10m Spring constant…

Q: opt

A: Given: Gravitational acceleration is 16 m/s2

Q: Capacitance of a Thundercloud The charge center of a thundercloud, drifting 3.0 km above the earth's…

A: Given: In this question, the given details are, Capacitance of a Thundercloud The charge center of a…

Q: 1. force that q2 exerts to q3 * 90000N O 22500N O 10000 N O 2.0 x 10 * 4 N O 5.1 x 10 ^-5 N O ON

A:

Q: 7. Mr. Mangan runs 50 m south in 1.5 seconds. What is his speed? What is his velocity?

A: Given,Mr. Mangan runs 50 m soth in 1.5 seconds

Q: Humans evolved in Earth's atmosphere, therefore the pressures interior to the body are relatively…

A: We will use formula for pressure to answer the question. The steps are as follows

Q: The answer is wrong! The correct answer is 3.62. How do i get this answer

A:

Q: 4 Consider a fixed amount of an ideal gas undergoing an isochoric process ("isochoric' means…

A: Given  An ideal gas with initial temperature T1  and final temperature T2 =2T1

Q: As shown in the figure, three charges are placed on the x-y plane. 93 92 91 Charge q1 = -7 µC is at…

A:

Q: A sound wave is travelling in air has a frequency of 490 Hz, What is the wavelength of the wave in m…

A: The speed of the sound varies with temperature  The formula to calculate the speed of the sound is

Q: Convert the following into the new units. Find 9.807 m/sec² (the acceleration of gravity) in miles…

A: Given that, acceleration due to gravity (g)= 9.807 m/s² We know that, 1 meter = 0.000621 miles And,…

Q: The magnetic field is uniform and out of the page inside a circle of radius R, and is essentially…

A: According to Faraday's first law of electromagnetic induction, an electromotive force is generated…

Q: A15 mH inductor is connected to an AC generator with a frequency of 60 Hz and carries a current i…

A: we can say that,  emf=LdidtL= inductancei= current given that:- L=15mH=15×10-3H…

Q: er has a speed of v2= mine the skier's height

A: Given: Speed of ski-jumper is 9.31 m/s Speed of skier is 7.4 m/s

Q: ermine the wave's amplitude. B

A: Given: Wave equation is yx,t=Bcos2πx/L-t/T Amplitude is A=B=5.2 mm L=25 cm

Q: Determine the angle e between the 350-lb force and the line OC. B F = 350 lb %3D 9" 11" 20" C

A: The angle between the two vectors is given by Where Dot sign (.) = Dot product,                 are…

Q: If a trillion (1012) asteroids, each 5 km in diameter, were assembled into one spherical body, how…

A: In the given problem, a large of asteroids are assembled in one body . Therefore at first we have to…

Calorimetry

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