A metallic plate, 15 cm by 50 cm in size, is heated from 20°C to 220°C. If the plate is made of steel (? = 11 x 10-6/°C), what is its change in area?

Q: A straight wire segment I L = (3.0 [A])(4 [cm] Î + 3 [cm] Ĵ) is in a uniform magnetic field B = 2.0…

A:

Q: 8. An object moving at 5.0 m/s suffers an impulse of 40 N-s At the end of the impulse the t object's…

A: Given data:  Initial velocity (u) = 5.0 m/s Impulse (I) = 40 Ns Final velocity (v) = 12 m/s…

Q: 16. A police car has an 800-Hz siren. It is traveling at 35.0 m/s on a day when the speed of sound…

A:

Q: A shopper pushes a grocery cart 24.0 m at constant speed on level ground, against a 32.0 N…

A: Given Distance d               = 24.0 m Frictional force Ffr  = 32.0 N Angle θ1                 =…

Q: Consider the circuit shown below. Battery emf is = 16V and the resistances are R₁ = 1892, R₂ = 902…

A:

Q: 79. In proton-beam therapy, a high-energy beam of protons is BIO fired at a tumor. The protons come…

A: Given data, Energy U=0.1 J Voltage V= 12 MV

Q: 5. In the figure, a light ray enters a glass slab at point A at incident angle 0₁ = 45.0° and then…

A: Total Internal Reflection:Whenever a ray of light is proceeding in a medium with a refractive index…

Q: 1. Two pulleys A and B shown are supported by a system of light cords and pulleys, which are…

A:

Q: nd

A: Given: Speed of proton is 3×104m/s. Angle is 30o Electric field is 400 N/C

Q: A house that was heated by electric resistance heaters consumed 1200 kWh of electric energy in a…

A:

Q: thermal energy (A) decreases to zero (B) decreases by about 25% (C) stays about the same (D)…

A: The correct option is:(C) stays about the sameWhen you cool an object from room temperature (20°C)…

Q: Consider the E(k) plot shown below. What is the direct bandgap? What is the indirect bandgap? -k O…

A: In direct bandgap semiconductor, the maximum energy of valence band aligns with minimum energy of…

Q: H. Conduction (Heat Current) 15. A large metal cylinder with a bottom 2 m in diameter is made of out…

A: The amount of heat conducted is  H = K A (T' - T) td where, K is the coefficient of thermal…

Q: A rope that weighs 0.5 lb/ft is attached to a bucket filled with cement plaster that weighs 22 lbs.…

A: weight per unit length, w=0.5 lb/ft Bucket with plaster, W=22 lb This bucket is pulled by the rope…

Q: A+2.0 nC charge is at the origin and a -4.0 nC charge is at x 1.0 cm a. At what x-coordinate cm…

A: part (a)to determine,at what x-cordinate should third charge be place , so thatit experiences no.…

Q: The figure below shows the field that results when a conducting sphere is placed in a uniform…

A: The figure below shows the field that results when a conducting sphere is placed in a uniform…

Q: I. Radiation (Heat Current) 17. A hot sphere of radius 0.040 m and an emissivity of 0.80 has a…

A:

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: The cue ball hits the "8" ball in a head-on collision. The cue ball is moving at a speed of 3.96 m/s…

A: In a perfectly elastic collision between two bodies, total momentum is conserved and total kinetic…

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

A:

Q: 17. An FM radio station broadcasts at 96.7 x 10° Hz. What is the wavelength of the radio wave used…

A: Given data : Frequency, f=96.7×106 Hz Standard data: c=3×108 ms-1

Q: 3. Determine whether the corresponding system is linear, time invariant and causal. Show block…

A:

Q: A wave out in the deep ocean has an amplitude of 1.51 m, a wavelength of 212 m and a period of 14.3…

A: Amplitude = 1.51 m  Wavelength = 212 m  Time period = 14.3 seconds

Q: 4 6. 7 8. You are on the right side of a sled, pulling it to the right with 150 N of force. A friend…

A: Since there are three forces acting in horizontal direction namely 150N towards right , 200N towards…

Q: 1. One morning, Connie walks from her house to go to a store that is 500 ft, S 40° W from her house.…

A:

Q: When an 525 N object floats on water, what is the net force in the vertical direction acting on the…

A: Weight= w = 525 NObject is floating on water.

Q: 6 10 2 2 t (ms) 6 The current i through a 4.1 H inductor varies with time t as shown by the graph of…

A: Given Inductance L = 4.1 H Resistance R = 12 Ω Find the magnitude in volts of the induced emf &…

Q: (numbers 13-14) Trucks 1 and 2 each have a siren emitting a pure tone of 600 Hz. Truck 1 remains…

A:

Q: 10. (3) Using the same formula for the speed of sound in question temperature outside if your friend…

A:

Q: I need help with 15 please.

A: Given information: The time taken by the I0 to circle Jupiter (T) = 1.769 days = 1.769 (24) hr =…