A blackbody radiator (none of the choices) does not absorb thermal radiation. emits radiation only in the visible light region. O is a reflecting surface.

Q: Find pressure value Force 2.11 N Area=0.223 m2

A: Given data : Force=F Area=A   Required : Pressure

Q: john was driving , moving at 17.0 m/s, approaching the open window of Khuslen who was experimenting…

A: Observed frequency f' = (v+ vo)*f /(v-vs)  When the observer/source is closing the distance between…

Q: A 22.9 kg suit case is being lifted up by a rope and pulley system as shown here. If the distances…

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Q: An equilateral triangle has sides of 0.15 m. Charges of -9.0 µC, +8.0 µC and +2.0 µC are located at…

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Q: Arelyz and Hyeonggyun drop a 364.0-g piece of metal at 100.0°C into 445.0 g of water at 20.0°C. The…

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Q: If the block is 1000kg, determine the value of frictional force if P is equal to 3200N.…

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Q: *17-44. The uniform bar of mass m is pin connected to the collar, which slides along the smooth…

A: Solution:-

Q: Using a dish-shaped mirror, a solar cooker concentrates the sun’s energy onto a pot for cooking. A…

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Q: A ball is thrown horizontally from the top of the Cliff 144 ft high with an initial speed of 60…

A: Given, The ball is thrown horizontally with a speed (u) = 60 ft/scc  The height of the cliff is (h)…

Q: How many turns, a thoroughly flat circular coil of wire, which has a diameter of 6 mm that carries…

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Q: Ice has formed on a shallow pond, and a steady state has been reached, with the air above the  ice…

A: Write the given values with the suitable variables. T1=-5 °CT2=4 °CL=1.4 mki=0.4 cal/m·°C·skw=0.12…

Q: An object starts from rest at the origin and moves along the x axis with a constant acceleration of…

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Q: A 200 Ω resistor, 1.6 H inductor, and 3.0 μF capacitor are connected in series across a 60 Hz, 120 V…

A: Given resistance(R)=200 ohms Inductance (L)=1.6 H Capacitance (C)=3.0*106 F Frequency (F)=60 Hz…

Q: A stone is thrown vertically upward at the rate of 20 m/s. It will return to the ground after how…

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Q: A ball is thrown up into the air. Ignore air resistance. When it is rising and reaches half of its…

A: Given : A ball is thrown up into the air. To determine : Net force when the ball reaches half of its…

Q: Pilots can be tested for the stresses of flying high-speed jets in a whirling “human centrifuge,”…

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Q: he velocity (v) in metres per second of an object in terms of the time (t) in seconds is given by:…

A: Given: The equation of the velocity of the object is. v=-10t2+9…

Q: A rod 2 m long expands 1 mm when heated from 8 degree Celsius to 70 degree Celsius. What is the…

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Q: (5 N ******** C ACTIVITY 1. CHECKPOINT 1 Direction: Based on the sketch, answer the given questions.…

A: We have a circular loop near which a magnet is being brought. In the given figure the north pole of…

Q: Find the displacement Work done=12.002 J Force=5 N

A: Given data:  Work done (W) = 12.002 J Force (F) = 5 N Required: Displacement (d)

Q: A motorist drives south at 20.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.00…

A: Velocity and displacement vector

Q: A sound wave propagates in air at 21°C with frequency 4.50 kHz. It passes through a region where the…

A: Given: A sound wave propagates in air 210 c with a frequency 4.50 kHz. It passes through a region…

Q: Arelyz and Hyeonggyun drop a 378.0-g piece of metal at 100.0°C into 447.0 g of water at 20.0°C. The…

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Q: 5. A 35 W compact fluorescent bulb operates at 30.0 % efficiency. Calculate the amount of energy…

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Q: Yujin is playing on a violin string with a length 32 cm and linear density 1.5 g/cm, that resonates…

A: For an organ pipe closed at one end,  First overtone frequency ,f1 = 3v/4L v is velocity of sound =…

Q: A 1500kg car can accelerate from 0 m/s to 3 m/s in 30s. What is the work done to the car (in Nm)?…

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Q: This works because of thermal emission (a) solar cell (b) pyrometer (c) optical fiber…

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Q: The voltage across the terminals of an AC generator varies with time according to the equation v =…

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Q: Two point charges +0.08 µC and +0.32 µC are 20 cm apart in air.  (a) What is the potential energy of…

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Q: Aquaman is swimming in the Dead Sea at a depth of 40:0m. What gauge pressure acts on him at this…

A: Given: The density of the dead sea is 1.24x103 kg/m3. The depth of the water level is 40 m.

Q: 2. The nuclear radius of gold is approximately r = 7.0 fm (1.0 fm = 1.0 × 10-15 m). The radii of…

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Q: Charge is placed on the surface of a 2.7-cm radius isolated conducting sphere. The surface charge…

A: Given: The radius of the sphere is 2.7 cm. The surface charge density is 6.9x10-6 C/m2.

Q: Q3/ The near point of a certain eye is 100 cm in front of the eye. What lens should be used to see…

A: We have a eye with a near point of u=100 cm in front of the eye and we need a lens of focal length…

Q: What is the rate of change of the sound pressure p with respect to time W = 7.2 and dW/dt = 0.5 at…

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Q: Quantum Dot: Patent number 979-878-436 is for a quantum dot that only emits and absorbs three…

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Q: c. A person throws a ball with an initial velocity of 17 m/s, 65° above the horizontal. J v=17 m/s…

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Q: A force of 268 N is applied to an object of area 24 m² find the pressure ?

A: Introduction :  In this question we are provided with value of force and area . with these data we…

Q: A 3.25 cm high object is placed 28 cm in front of a convex mirror. Its image was formed 14cm behind…

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Q: wath will be the potential energy of 4 Kg height of 12m. [Take g = 10 m/s² ] mass kept art

A: Write the given values with the suitable variables. m=4 kgh=12 mg=10 m/s2 Here, m is the mass, h is…

Q: What would be the change in temperature in kelvin if the change in temperature in degress celsius is…

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Q: Compute the momentum Mass=22.66 kg Velocity=0.99 m/s

A: Data provided: Mass (m) = 22.66 kg Velocity (v) = 0.99 m/s Asked: The momentum

Q: b. v = 25 [N15°E] S N 15% = 25 m/s E

A: Given data: The velocity, v=25 m/s Direction, θ=150 NE Our question is to find the components of…

Q: Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given…

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Q: A ball is thrown at 55.0 degrees about the horizontal with a speed of 29.0 m/s. What is the max…

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Q: Determine the speed of a certain molecule whose mass is 6.13 × 10^−26 kg. The kinetic energy of that…

A: Write the given values with the suitable variables. m=6.13×10-26 kgK=6.13×10-21 J Here, m is the…

Q: The force F has a magnitude of 690 lb and acts along the line AM where M is the midpoint of the…

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Q: Find the momentum of a body having mass 3 kg moving with a velocity 2 m/s.

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Q: In the Twin Paradox, the difference in age for the twins can be accounted during which crucial…

A: Correct answer: During the period of acceleration where the traveler changes direction and returns…

Q: Yusheng and Dominic determine the root-mean-square speed (thermal speed) of the molecules of a gas…

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Q: 6. A toy spring launcher is used to launch a 10.5 g object into the air. The spring of the launcher…

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.