How much thermal energy is required to freeze water (12 Kg) from 23 degree Celsius to -15 degree Celsius? Draw heating/cooling graph, Heat Capacity(Water) = 4186 J/(Kg*C), Heat Capacity(Ice) = 2093J/(Kg*C) Latent heat of fusion = 3.4 x 10^5 J/

Q: How far must a lady stand in front of a concave mirror (r = 120 cm) to see an upright image of her…

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Q: A net force of 170 N acts on a body whose weight 96 N. what is the acceleration?

A: Given Net force = 170 N Weight = 96 N We have to calculate the acceleration of the body.

Q: 4. You purchase a rectangular piece of metal that has dimensions 5.0 x 15.0 x 30.0 mm and mass…

A: Given Datal=5mmb=15mmh=3mmm=0.00158kg

Q: inverse square law and how does it apply to lighting? Identify which type of architectural lighting…

A: Inverse-square law is as follows: The Inverse-square law portrays the force of light at various good…

Q: Daniel takes his two dogs, Pauli the Pointer and Newton the Newfoundland, out to a field and lets…

A: A)

Q: The orbit of the comet Kohoutek is about 44 astronomical units wide by 3600 astronomical units long.…

A: The semi major axis of the elliptical orbit a=3600/2=1800 AU and the semi minor axis of the…

Q: Q3/ A car is moving along a straight line with the acceleration a- (12t- 3t) m/s, where t is in…

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Q: Consider the circuit (Figure A) given below which has only two resistors in a parallel combination.…

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Q: Activity II: Solve the following problems intelligently. Show your solution neatly (indicate…

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Q: Q.1. RL-Girenit : R= 1000 2 L-1 H : 1 VCt) = Volts 40 sint Aouening ico) = 0, Find ict).

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Q: An electron experiences a magnetic force of magnitude 5.60 x 10^{-15} N when moving at an angle of…

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Q: Water emerges straight down from a faucet with a 2.50-cm diameter at a speed of 2.18 m/s. (Because…

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Q: Q1)) Determine voltage across R2 and R4 using voltage division rule. Assume that: R2=502, R3= 402,…

A: V1 = 220 volts R1 = 100 ohm R2 = 50 ohm R3 = 40 ohm R4 = 20 ohm

Q: John is moving the drawer from one place to another, instead of pushing he used a rope to pull it…

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Q: What is the capacitance of a defibrillator that can deliver a maximum of 300 J by discharging energy…

A: to solve - given questions on capacitance

Q: The vertical motion of the ship up and down caused by seawater is known as: Yawning Pitching Heaving…

A: The vertical motion of a ship up and down caused by sea water

Q: Give 2 examples or situations where you can apply electromagnetic induction

A: (1) Electric Generators : Electromagnetic induction is used in electric generators to convert…

Q: A sample of U (T1=1.59 × 10° yr) contains Part A 6.10 × 1018 nuclei. What is the decay constant?…

A: Given data: The half-life is T1/2=1.59×105 yr. The number of nuclei is n=6.10×1018 nuclei.

Q: A mass of 420 g is attached to a vertical spring, causing the spring to stretch a distance d. When…

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Q: In the provided image, the positively charged rod is placed near the electroscope. Figure out the…

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Q: A right circular cone has mass M, radius R, and heighth. Moment of inertia of cone about a diameter…

A: Moment of inertia of a thin disc about a diameter =M * y2/4 =(1/4) π y4 δxρ Where, y is the diameter…

Q: A diffraction grating with n = 2.5E-05 lines/nm is used to separate two colors of light. The angle…

A: Given n = 2.5E-05 and  first maxima is Δθ  ≡ θ1 - θ2 = 0.44 degrees wavelength λ1 = 618 nm. We have…

Q: The string is 70.00cm long and weighs 12.00 g. Calculate the linear density of the string. ( in…

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Q: What is the net electric force on the charge located at the lower right-hand corner of the triangle…

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Q: When a material was connected to a 12-V source, the ammeter reads 1.75A. The voltage was then…

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Q: What is the force of gravity between a keen physics student and Earth if the keen physics student is…

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Q: A merry go round is accelerated at a constant rate of 0.005 rev/s2, starting from rest. (a) What is…

A: A merry go round is accelerated at a constant rate of 0.005 rev/s2

Q: An oscillator consists of a block attached to a spring (k = 210 N/m). At some time t, the position…

A: Given Force constant of the spring is k=210 N/m Position of the spring is x=0.144 m Velocity of the…

Q: A driver drove from City A to City​ B, a distance of 85 miles. She then stopped for 2 hours to see…

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Q: Give one example/experiment on how to demonstrate the wave behavior; reflection, refraction,…

A: The mini ripple tank is an example that demonstrates refraction, reflection, diffraction, and…

Q: What is the force on the 2.0–μC charge placed at the center of the square shown below left?

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Q: 3) Billiard ball A moving with velocity vA = 3.0 m/s is traveling in the +x direction and strikes an…

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Q: 0.578 mol sample of Kr gas is confined in a 14.7 liter container at 36.7 °C. If the temperature of…

A: If the temperature of the gas sample is raised to 56.9 C holding the volume constant, the average…

Q: 1. The total uniform load of 500KN is supported by three rods of the area and material. Compute the…

A: Answer

Q: 3. A closely wound 0.20m X 0.20m square coil of 100 turns is exposed to an external magnetic field…

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Q: A spring mass system has a mass of 5 kg and k = 100N/m is pulled down a distance of 100 mm from the…

A: Given, Mass=5kg Spring constant=100N/m Distance=100mm

Q: Need other perspective. Apply Kirchoff's Law

A: Ans:- apply Kirchhoffs laws of the circuit I1 + I2 =I3 .....................1 For 1st loop V1 -…

Q: n UV sensor collects the altitude, battery level, speed data that are being sent using TDM. Each UV…

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Q: · A water is flowing in a pvc tube that has a varied cross-sectional area. (a) Find the velocity of…

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Q: Find the density of solid Mass=50 kg Volume=0.005 m3

A: Answer:-  Given  Mass(M) = 50 kg  Volume (V) = 0.005 m3  Density (d) = ?  We know that  Density =…

Q: Light that is nonpolarized has an intensity of 6.0 W/m2. Rays of this light are incident on two…

A: The correct answer is option (3)

Q: R1 A 202 102 10v 20v 2 R V, V2 402 B 3

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Q: Which of the following graphs best describes the motion of a free falling object? A. I and II only…

A: The initial speed of a free-falling object is equal to zero and it is falling under acceleration due…

Q: An object has a weight of 9 N when it is in air and 7.2 N when it is submerged into water. What is…

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Q: A snorkel is a U-shaped tube used to breathe with your head underwater (Leading from your mouth to…

A: The pressure difference at the height 'h' in a fluid is given as ∆P =ρghWhere ρ = density of the…

Q: 2. You have five 10.0 F capacitors. Show all the possible connections for the five capacitors to…

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Q: An LC circuit has an inductor of inductance 8.4 mH and a capacitor with a capacitance of 963.7 µF.…

A: Given Inductance of the inductor is given as L=8.4 mH=8.4×10-3 H Capacitance is C=963.7…

Q: 5. If a hexatriene molecule absorbs light of 2500 Å to change a Tr electron from n=1 to n=2, what is…

A: The length of the molecule is 1.248 pm.

Q: A 70.0kg stuntman is attached to a bungee with an unstretched length of 15.0m. He jumps off a bridge…

A: Solution: Determine the elastic potential energy P.E.e=12kx2 Here, k is the spring constant and x is…

Q: The velocity v(t) in the table below is increasing for Osts12.

A: Answer