3) Suppose you drop 100g of aluminum at a temperature of 90°C into 195g of water at 5°C. What is the final temperature?

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A: Given: Initial speed,u=0 (as start from rest) Final speed, v=95.0 m/s Uniform acceleration, a=2.20…

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A: For a myopic eye that far point is given to be d=2 m. Since a myopia eye has a problem in seeing far…

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Q: The force required to start a mass of 50 kg moving a rough surface is 343 N. What is the coefficient…

A: Mass (m) = 50 kg , force (F) = 343 N  g = 9.8 m/s^2 ,  μ = ? Force = μ * N  But N = normal force= mg…

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Q: 21.2 Ə A ray of light strikes a mirror and is reflected so that the angle between the incident and…

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Q: Thermal energy is produced in a resistor at a rate of 127 W when the current is 2.45 A. What is the…

A: Power (P) = 127 W Current (I) = 2.45 A

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A: Let the angle of incidence & the angle of refraction for the refraction of light at the…

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A: The rest energy of the particle is define as                                     E = moc2 Where m is…

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Q: A uniform, 31.16-N rod is 14.45 n long carries a 415.01-N at its right end and an unknown weight W…

A: Balancing torque about falcrum  W(14.45-2.73-4.13) + 31.16×[(14.45/2)-4.13] = 415.01×4.13  7.59W =…

Q: Determine the wavelength of the maximum amount of radiation emitted by surface at 49 °C. Express…

A: Power = 100 W surface temperature (T) = 49o C = 322 K

Q: 1) A 0.5 kg box is attached to an ideal spring with spring constant k=80 N/m. If the spring is…

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Q: Forces F1, F2, and F3 act on the structure of Figure 3 as shown. We wish to put the structure in…

A: Given data: The forces are, F1=20 NF2=10 NF3=5 N The distances are, a=2.0 mb=3.0 mc=1.0 m

Q: As shown in the figure, a light beam travels from air, through olive oil, and then into water. If…

A: By snell's law  n1Sinθ1 = n2Sinθ2  1×Sinθ1 = 1.47×Sin34.2°  Sinθ1 = 0.826  θ1 = 55.69°

Q: Directions: Answer the following problem, write the given and the solution. Calculate the Hall…

A: Given Magnetic field (B) = 0.800 T Inside diameter of vessel's L = 4.8 mm    = 4.8 × 10-3 m Speed…

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Q: Four resistors (3Ω, 4Ω, 6Ω, and 8Ω) are connected in parallel across a 9-Volt battery. How much is…

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Q: How much mass would need to be converted to energy in one hour to provide the sun with 1.378x10^30…

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Q: Determine the speed of sound on a cold winter day (T=3 degrees C).  Q2. Find out the speed of sound…

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Q: 30.28 Five resistors are connected to a 24 V resistor as shown in Figure 30.30. (a) What is the…

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Q: When a tire pressure gauge is pressed against a tire valve, the air in the t pushes against a…

A: Let us assume that the spring is ideal, then according to the hook's law…

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Q: In the figure, two circular arcs have radii a = 13.7 cm and b = 11.0 cm, subtend angle = 78.0°,…

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Q: With what velocity must a ball be thrown vertically upward in to order to rise to a height of 50ft?…

A: height = h = 50 ft = 15.24 m acceleration due to gravity g = 9.8 m/s2 final velocity = V = 0 m/s…

Q: 22) which of the following terms refers to the flow of electrical charge? a) voltage b) current…

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Q: 24.39 Four capacitors with capacitances C₁ = 3.50 nF, C₂ = 2.10 nF, C₂ = 1.30 nF, and C₁=4.90 nF are…

A: Given, C1 = 3.50 nFC2 = 2.10 nFC3 = 1.30 nFC4 = 4.90 nFV = 10.3 V

Q: POP 2 Q21 2 You throw a baseball straight up, and because of air resistance some of the ball's…

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

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Q: If you are going to launch a 10,000 kg spacecraft from Earth, (a) how much kinetic energy it must…

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Q: Two point charges (91 = -3µC and q2 = 8 μC) are fixed along the x-axis, separated by a distance d =…

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Q: 5. Derive the lens equation. = 4+1/26 - 12/20 4 Note: Draw Image, Show the rays, angles and…

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Q: Seatwork. (. A car travels on the road with a constant velocity. a) (what is the horizontal ret…

A: Given  Car is travelling with constant velocity . To find  a) Horizontal net force acting on the car…

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A: Given data: The equation of displacement is, d=8-5cosπt

Q: y A total charge Q = 1.9 µC is distributed uniformly over a quarter circle arc of radius a = 8.6 cm…

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Q: Solve and arrive the exact answer one of these choices. Make sure your solutions is readable.…

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Q: What image is produced by placing an object 8 cm away from a convex lens of focal length 12 cm?

A: Given data :- distance between lens and the object u = 8 cm focal length of the lens f = 12 cm

Q: Find the momentum A car that has a mass of 1305 kg and a velocity of 12 m/s?

A: Given data :                       Velocity    =    V                          Mass      =    m…

Q: 30. A commercial pressure sensor is used to measure gage pressure pgage of a gas container. If the…

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Q: QUESTION A wave in one medium encounters a new medium and enters it. Which of the following wave…

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Q: What are some realizations we can get after doing an experiment about the law of refreaction? Ex: an…

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Q: How many electrons have been removed or protons added?

A: