The energy reaching Earth from the Sun at the top of the atmosphere is 1.36 x10^3 W/m2 , called the solar constant. Assuming that Earth radiates like a blackbody at uniform temperature, what do you conclude is the equilibrium temperature of Earth?

Q: F Two blocks are in contact on a frictionless table. A horizontal force F is applied to M₂, as…

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Q: Find the distance covered by car moving 23.5 km/hr in 2.5 hr

A: Given value--- speed = 23.5 km/hr.  time = 2.5 hr. We have to find--- covered distance?

Q: 4) Four-point charges are placed on the corners of two equilateral triangles as shown in Figure 3.…

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Q: Find the kinetic stored in ball having mass 0.5 kg moving with velcoity 3.3 m/s. Report answer in…

A: Kinetic energy= 12mv2 J m= mass of the ball v= velocity of ball

Q: If an object reflects purple light and absorbs other colors, what color will that object appear to…

A: Given that, if an object reflects purple light and absorbs other colors, what color will that object…

Q: A football is placed on a line 25 m from the goalpost. The placement kicker kicks the ball directly…

A: horizontal distance covered by the football = x = 25m speed of the football = 21 m/s angle θ = 470

Q: If the absolute pressure is 300 Kelvin, what is the equivalent in degree Rankine?

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Q: A)What is the potential at the point indicated below? B)What is the electric field there?

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Q: Find the momentum if car has mass of 60 kg moving with velocity 2 m/s

A: Given data : Velocity is represented by V Mass is represented by m   Required : Momentum

Q: : A particle moving with rectilinear motion starts from rest and is given a constant acceleration of…

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Q: A basketball player is shooting some hoops, on one particular shot the ball leaves her hands 10.7m…

A: There might be some error in data. Check it once again and follow the same procedure to calculate…

Q: Time t (seconds) 0.4326 0.8625 1.2978 1.7304 Displacement d (inches) 6 12 18 24 Average…

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Q: There is an electric current of I = 0.16 A flows through a long, straight wire. The wire lies in the…

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Q: A batter hits the baseball A with an initial velocity of vo-98 ft/sec directly toward fielder B at…

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Q: An alternating current completes 5 cycles in 8 ms. What is its frequency?

A: Given value--- An alternating current completes 5 cycles in 8 ms. We have to find--- What is its…

Q: (a) What is the radial acceleration of the bob? magnitude m/s2 direction inward (b) What are the…

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Q: Find the kinetic stored in ball having mass 0.5 kg moving with velcoity 3.3 m/s. Report answer in…

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Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…

A: Given  speed of sound in air  v = 343 m/s  Frequency of sound wave f = 220 Hz To find  wavelength of…

Q: Jeff Gordon and Dale Earnhardt are racing their stock cars to try to win the Daytona 500. Jeff makes…

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Q: You have two stones in your hands, and you are standing on a bridge. You throw the first stone with…

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Q: 10 J of heat are removed from a gas sample while it is being compressed by a piston that does 20 J…

A: Given data:  Heat removed from the gas = 10 J Work done on the system = 20 J Required: The change in…

Q: Q4.:Block A in Fig 2 weighs 50 N and block B weighs 35 N. The blocks are connected by a flexible…

A: Given, Weight of Block A, WA = 50 N weight of Block B, WB = 35 N coefficient of friction between the…

Q: 5. Which car will go farther: A, B, or C? Explain the reason for this result. 0 m -Initial height:…

A: Given data:  The projectile motion of the cars Initial height (h) = 0 m Launch angle (θ) = 75°…

Q: As your friend skateboards down a hill, you measure their velocity at 1.0-second intervals. You…

A: Given data:  Initial velocity at t = 0.0 s u = 0.0 m/s Final velocity at t = 2.0 s v = 4.6 m/s…

Q: What is the voltage across the terminals of a 23 resistor that has 0.065 A of current flowing…

A: Given value--- resistance = 23 ohm current = 0.065 A. We have to find --- Voltage?

Q: Two blocks with masses M₁ and M₂ hang one under the other. For this problem, take the positive…

A: Given data:  Two blocks hang one under the other The masses of the blocks are M1 and M2 g =…

Q: A

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Q: A 72.0 kg sprinter starts a race with an acceleration of 1.32 m/s2. If the sprinter accelerates at…

A: Given value--- A 72.0 kg sprinter starts a race with an acceleration of 1.32 m/s2. If the sprinter…

Q: Answer the following A. A comet has just passed the Earth and its peak emission is observed at…

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Q: Two point-charges, 2q and -q are placed on the y-axis as shown, the line integral of their combined…

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Q: A marksman fires a practice round from A toward a target B. If the target diameter is 170 mm and the…

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Q: 6m 4 kN -2m 30°

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Q: A boat moves in still water with a velocity which is & times less than the river flow velocity. Find…

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Q: Say that the surface of a star has a temperature of 6000 K and an electron density of n = 2.6 x 1019…

A: Find step to step solution in image attached below. Answer = 1.6565 × 10^-4

Q: If the frequency of a photon increases, then its energy will

A: Since Energy of photon is directly proportional to the frequency of photon E = hv

Q: 2. If the absolute pressure is 300 Kelvin, what is the equivalent in degree Rankine?

A:

Q: Find the kinetic stored in ball having mass 0.5 kg moving with velcoity 3.3 m/s. Report answer in…

A: Given value--- mass = 0.5 kg. velocity = 3.3 m/s. We have to find--- kinetic energy?

Q: A cannon launches a cannonball from level ground with an initial speed of 80 m/s at an angle of 280…

A: Given data:  Initial velocity (u) = 80 m/s Angle (θ) = 28°,above the horizontal g = 9.81 m/s2…

Q: Q4.:Block A in Fig 2 weighs 50 N and block B weighs 35 N. The blocks are connected by a flexible…

A:

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Given, Current across the microwave oven, I = 10 A Voltage, V = 120 V

Q: Two 3.7-g spheres are suspended by 13.5-cm-long light strings (see the figure). A uniform electric…

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Q: 1. When .x=0, the spring is unstretched. For the motion when initially x₁ = 100 mm to the moment…

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Q: 4. A wave is traveling at 130 m/s. Determine its frequency if its wavelength is 0,8 m.

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Q: 13-5. The reason that massive neutrinos were considered as a candidate for solving the miss- ing…

A: 5) The density of photons and neutrinos is 500 photons/cm3. It is required to find the individual…

Q: 2) The speed of sound in air is 343 m s. If the frequency of a sound wave is 220 Hz, what is the…

A: Given data : Frequency of sound wave is represented by f Speed of sound in air is represented by V…

Q: A horizontal spring of constant k connected to a mass m slides on a horizontal surface that presents…

A: In the following problem,  Amplitude of oscillation decreases by 0.95 A. Number of cycle, n=10

Q: Write a realistic problem for which the expression below is the solution

A: In the following problem, We have an expression 2az Vm=-dVdz Here: a is the constant, with unit of…

Q: Find the quantum volume, in m3, of a nitrogen molecule at a temperature of 293 K.

A: Quantum volume is given by vQ= h2πmkT3

Q: A boat crossing a river travels north with a velocity of 10.0 kph relative to the water. The…

A: Given data:                The velocity of the boat travels to the north =10.0 kph…

Q: Calculate the displacement and velocity at times of (a) 0.500, (b) 1.00s, (c) 1.50s, and (d) 2.00s…

A: The free fall motion of an object is the motion under the influence of acceleration due to gravity.…

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.