What is the change in entropy of 20 g of ice at 0 °C when it melts to become water at 0 °C?

Q: 9 and 10. Thanks.

A: 9.The equation for dot product

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: A long straight wire carrying a current of 0.450 A has a loop with a radius of 5 cm. The current is…

A:

Q: In the following diagram, the current passing through 20 Ohm is 1.5 A. 19. What is the current…

A:

Q: If a candle is 3 meters from a thin lens with a focal length of 2 m, find the image distance A) 2 m…

A:

Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

A: Given:    An infinitely long wire --- uniformly charged.    Voltage difference (ΔV) (between r1 = 4m…

Q: hown in the figure below, two long parallel wires (1 and 2) carry currents of I, = 2.86 A and I, =…

A: calculate the net magnetic field at point and find direction as per shown.

Q: 4. Two charged metal spheres, separated by 20 cm, resulting force when the charge on each sphere is…

A:

Q: Two infinite sheets of current flow parallel to the y-z plane as shown. The sheets are equally…

A: Given:Current through sheet at left, I1 = 2.9 (-k^) A in each wire Current through sheet at right,…

Q: A solenoid with radius a produces a magnetic field with strength B pointing into the page. A square…

A:

Q: Problem #1) Determine the moment of forces about point 0. F3=75 lb X- 15⁰ 6'-0" Y F₂ = 50 lb 90° Y…

A: Forces F1 = 25 lb,  F2 = 50 lb, F3 =  75 lbdistance between origin and point O (d) = 6 ft

Q: The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal…

A: Give Thermal conductivity = 100j/s-mC  Delta T = 21- 12 ° C = 9 ° c

Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: Using the letters, match each prefix with the multiplier it represents. V V V V x 10-6 x 106 x 10-3…

A: The given prefix are associated with multiplier as per their definition.

Q: Light bulb 1 operates with a filament temperature of 2500 K, whereas light bulb 2 has a filament…

A: T1=2500k. T2=1900k.

Q: 6&7 please

A:

Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

A: Given, star X is located 20 light-years from earth star Y is located 40 light-years  from earth…

Q: 3. We will repeat the previous problem using energy arguments. Comment: Mechanical energy is…

A: The given yo-yo is made up of two solid disks, each of mass M, so the total mass of the yo-yo is 2M.…

Q: 7. "The wider the road, the more cars can pass through". Which of the following factors affecting…

A: We need to tell which factor affecting the resistance fits the given analogy.

Q: Data and Observations Change or Reaction Burning wood or paper Chemical or physical change? How do…

A:

Q: Consider the 68.0 kg mountain climber in the figure. 31 Fup 15 (a) Find the tension in the rope (in…

A:

Q: A wheel (radius = 0.30 m) is mounted on a frictionless, horizontal axis. A light cord wrapped around…

A: Given that  mass of block m=0.5 kg radius r=0.3 m acceleration a=5 m/s^2 basing on the concept of…

Q: 7,8,9

A:

Q: wave paths to a distant screen are shown, leaving the slits at angle ₁. (The screen is so far away…

A: The wavelength of light is 624 nm.  (1) Every semi circle wavelet represents a wave front. Wave 1…