What wavelength ( in nanometers ) is the peak intensity of the light coming from a star whose surface temperature is 4987 Kelvin? What color would we see with our eyes?

Q: A magnifier has a magnification of 5.0×. How far from the lens should an object be placed so that…

A: A magnifier has a magnification = 5.0 Image is at the near-point distance of 25 cm

Q: A 25 μF capacitor is connected in parallel with the series combination of 10 μF and 15 μF…

A: Capacitance 1 = C1 = 25 μFCapacitance 2 = C2 = 10 μFCapacitance 3 = C3 = 15 μF

Q: The electromotive force from a battery drives a current around the circuit shown in the figure.…

A: here q=6,250μC=6,250×10−6C   T=10sec⁡

Q: (8.0x10^0) kg box is sliding across a horizontal floor, with an initial velocity (1.19x10^0) x ^…

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Q: he charge per unit length on a long, straight filament is -86.3 μC/m.

A: Given : charge per unit length λ = - 86.3 μC To find : Electric field at (a) 10 cm…

Q: If light is traveling from air to water with an angle of INCIDENCE of 40 degrees what is the angle…

A: Light is traveling from air to water. Angle of incidence is θi=40° Refractive index of air is na=1…

Q: Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their…

A: The charge of electrons and protons are same, q The charge to mass ratio for electron is…

Q: An avatar on the surface of the planet Pandora throws a rock of "ba" She then records the vertical…

A: time (s)  y(m) x(m) 0 0 0 2 6 10 4 16 20 6 30 30 8 48 40 10 70 50

Q: particle with mass m is dropped with zero initial velocity a height h above the ground, under the…

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Q: The photo is a microscopic look at the surface of a reflective compact disk (CD), circa 2004. The…

A: The spectrum of color in Compact Disk is due to

Q: In a particular region of space, the electric potential is given by V=-7x²z+5xyz. What is the…

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Q: if you push a fridge with 20N force for a 5m distance, how much work did you do? (ignore friction)

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Q: A uniform solid disk with a mass of 22.0 kg and a radius of 0.244 m is free to rotate about a…

A: The mass of the disk is 22 kg. The radius of the disk is 0.244 m. The applied forces are 90 N and…

Q: Find the x and y components of the force shown in the figure. (Let to the right be the positive x…

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Q: Part C Calculate the energy stored in the inductor at t = 1.30 ms. Express your answer with the…

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Q: A block of mass m₂ = 12.0 kg is connected to a block of mass m₂ = 36.0 kg by a massless string that…

A: Given: m1 = 12kg m2 = 36kg k = 240 N/m h = 18 cm Apply the energy conservation equation.

Q: The molecules of a given mass of gas have r.m.s. velocity of 200 ms at 27°C and 1.0x105 Nm-2 pressur…

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Q: 1.0 Q9. In the figure shown, the dashed lines represent equipotential lines and the solid lines…

A: 9) Charge (q) = 1×10-6 C The equipotential lines are as shown in the figure

Q: Two masses connected by a light rope are pulled across a frictionless horizontal surface by a force…

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Q: A gas at 100° C fills volume V₁. If the pressure is held constant, by what factor does the volume…

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Q: Consider a closed triangular box resting within a horizontal electric field of magnitude E = 6.38 x…

A: The magnitude of the electric field is E=6.38×104 N/C

Q: A string of length 5.0 m is fixed in place on both ends. When it is plucked, it produces a standing…

A: The frequency of a standing wave on a string is determined by the wave speed and the wavelength of…

Q: An object of 1.0 cm in height is placed 31.5 cm in front of a concave mirror with a focal length of…

A: Focal length of concave mirror is f=10 cm Object height is ho=1 cm Object is placed at a distance…

Q: A block of 1 kg is moving at 3 m/s. It collides with and sticks to a 5 kg mass that is initially at…

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Q: A particle with a charge of 4.2 nC is in a uniform clectric field E directed to the left. It is…

A: Charge of a particle q=4.2nC=4.2×10−9C. Kinetic energy is K.E=1.5×10−6J. Distance traveled by the…

Q: When ultraviolet light with a wavelength of 374 nm falls on a certain metal surface, the maximum…

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Q: (Q29-Q30) A double-slit interference pattern is observed on a screen 1.2 m behind two slits spaced…

A: Distance between fringe A and B = 0.4 cm = 0.004 m

Q: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 5 amps. Overall Hint a. What…

A: See below

Q: Vector has a magnitude of 12 units and makes a 60° angle with the + x axis. What is the y component…

A: Given- The angle made by a on the x-axis-60 degree vector a magnitude=12units  The Y-ais component…

Q: A coin is found at the bottom of a swimming pool. stuck to the wall of it. If the pool has a depth…

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Q: An alpha particle gains 1.50 x 10-15 J of kinetic energy. Through what potential difference was it…

A: Given data :  Kinetic energy ( ∆ K.E. )  = 1.50 × 10-15 J  For an alpha particle , q = 2 × e    To…

Q: Person on a Merry-Go-Round A 25-kg child stands at a distance r = 1.0 m from the axis of a rotating…

A: Given that, Mass of the child (m)= 25 kg Distance of child from axis (r)= 1.0m Mass of the merry go…

Q: Light strikes an air water boundary with an angle of incidence of 30°. Calculate the refracted light…

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Q: 4. Three capacitors (with capacitances C₁= 5F, C₂= 7F and C3 =10F and power supply (U-120V are…

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Q: A Spinning Bicycle Wheel A bicycle mechanic mounts a bicycle on the repair stand and starts the rear…

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Q: Series Circuit For nos. 1-4, refer to the diagram below. R₁ Question 1 Your Answer: Answer What is…

A: Resistance, R1 = 750 ΩResistance, R2 = 270 ΩResistance, R3 = 380 ΩTotal voltage applied, V = 23…

Q: clock in a spaceship is observed t nly 3/5 that of a similar clock at r et is the spaceshin moving

A: Since Speed of clock in spaceship = 35 speed of clock at rest Therefore, Δt' = 35 Δt ∆t' = time take…

Q: The initial temperature of 60 g of ice is -20⁰C. The specific heat capacity of ice is 0.5 cal/g.C⁰…

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Q: A boat has broken down and is being towed by two other boats into a port (as per picture shown). W…

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Q: Calculating the Acceleration of a Fishing Reel A deep-sea fisherman hooks a big fish that swims away…

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Q: = A long current carrying pipe consists of two conducting layers. The first layer has an inner…

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Q: Two men are running at constant speeds along a circular track 1350 meters in circumference. running…

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Q: 4. If this entire wave is 30 meters long what is the wavelength of this wave? M^^^^^

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Q: Consider a positive charge Q₁ of magnitude 6.5 µC fixed at the origin with another positive charge…

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Q: Sketch the I-V graph of a substance that obeys Ohm’s Law.

A: According to Ohm's law, the voltage across a conductor is proportional to the current flowing…

Q: At each corner of a square of side & there are positive point charges of magnitudes Q₁ = Q. Q2 = 8Q.…

A: At each corner of a square of side there are positive point charges of magnitudes- Q1 =Q. Q2 =8Q. Q3…

Q: Equal amounts of an identical ideal gas are added to two containers. Container A can expand freely,…

A: The first law of thermodynamics, states that the change in internal energy of a system is equal to…

Q: For the configuration shown in the figure below, suppose a = 5.00 cm, b = 20.0 cm, and c = 25.0 cm.…

A: Since there are multiple sub-parts posted, we will answer the first three sub-parts for you. If you…

Q: 2. You are in a car traveling at 25.0 m/s toward a pole-mounted warning siren. If the siren's…

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Q: A contestant in a winter games event pushes a 50.0 kg block of ice across a frozen lake as shown in…

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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.