assume you are a perfect black body and Temp=310K. At what rate, in watts, do you radiated energy? (assume that you are spherical and have the density of water)

Q: On planet #5, a stone dropped from a height of 72.7 m above the ground will hit the ground at a spee...

A: initial height from where the stone is dropped (h) = 72.7 m Initial velocity (u) = 0 msFinal velocit...

Q: Match the variable with its description v HK A. The measure of force that opposes motion between two...

A:

Q: An electron is projected with horizontal velocity of magnitude v, into a constant downward electric ...

A: horizontal velocity = v0 vertical velocity=at=eEmt

Q: Driving down the road at a speed of 38.2 m/s, you suddenly notice a fallen tree blocking the road a ...

A:

Q: How much rotational kinetic energy in joules is there in a disk  of radius 0.2 meters and mass 76 kg...

A: Given,    r = 0.2 m   m = 76 kg  turns = 1000/s          = 1000×3600×π180 = 6285.713 rad/s  

Q: Four resistors are connected in a circuit with a battery of unknown emf, as shown below. The battery...

A: Given value--- All values given in circuit. We have to find--- (c) Calculate the power dissipated...

Q: A metal sphere hangs from a string and has 2 kg of mass. The sphere has a charge of +5.3 µC. A unifo...

A: Given: Mass of metal sphere , m=2 kg Charge on metal sphere, q=+5.3 µC   To find:(a)  the electric f...

Q: A dog is placed 18 cm from the vertex of a 59 cm diameter mirror. What is the location and nature of...

A:

Q: Suppose that the kinetic coefficient of friction between stone and grass is 0.7. A girl is sliding a...

A: Given,            μk = 0.7        Force = 72 N         mass = 8 kg      

Q: The next few questions challenge you to figure out the acceleration due to gravity ( g ) on various ...

A: Given data: The displacement of the stone is s = 63.8 m The time taken by the stone to hit the grou...

Q: A bug starts at point A, crawls 8.0 cm east, then 5.0 cm south, 3.0 cm west, and 4.0 cm north to poi...

A: Let us assume that the bug starts its movement in a coordinate system, starting its journey from ori...

Q: A charge of +12.0 µC is placed in at the center of a cube 24.0 cm on an edge. (a) What is the total ...

A: Given data:  Charge (Q) = +12.0 μC = +12.0×10-6 C Edge length of cube (l) = 24.0 cm Required: The to...

Q: Given data: Voltage=D12 Volt Reistance=4 ohm Determine current

A: Given data : Voltage=V Resistance=R   To find : Current

Q: A foam block that contains a charge of 0.0054 coulombs (C) experiences an electrostatic force of 8 n...

A: Given data:  Charge on the foam block (q1) = 0.0054 C Electrostatic Force (F) = 8 N Distance between...

Q: 2. MICROMETER 3. 10 5. - 20 TTTTTTTTT| -15 -20 – 10 MICROMETER Total Reading SR TR VR Total (cm) (in...

A: Diagram which is given in question is micrometer, we have to measure the value, SR,TR,VR value add t...

Q: The hottest and driest surface of all the inner planets is on Need help? Review these concept resour...

A: In this question we have to answer which planet is the hottest and has the driest surface. Please gi...

Q: A negative charge of -200 micro coulomb and a positive charge of 800 micro coulomb are separated by...

A: Given  charge(q1)=-200μC charge(q2)=800μC distance between the charges (r)=0.3 m Required force betw...

Q: Starting from rest, the elevator in an office building is accelerated 0.5 m/s2 for 5 seconds. And th...

A:

Q: A bus travels 250 km south along a straight path with an average velocity of 81 km/h to the south. T...

A:

Q: Rebekah is using a pulley system to lift a 710 N crate 2.4 m off the ground. The pulley system is 61...

A: Given that: Load, W=710 NLift, h=2.4 mEfficiency, η=61%=0.61Force, F=130 N

Q: 2. Which of the following statements is TRUE when two waves temporarily interfere with each other th...

A: We have been given two waves that interfere with each other temporarily and then they both resume th...

Q: 2. While driving down a road in your car that has a mass of 1300 kg, you notice that your speed is 2...

A: Given that:- Mass of car=1300kg

Q: Activity 2: Solve for all unknown valu C2 C1 C3 VT

A: Answer:-  Given  Capacitor (C1) = 2.0 F  Capacitor (C2) = 1.5 F  Capacitor (C3) = 3.0 F  Potential (...

Q: A spelunker is surveying a cave. She follows a passage that takes her a distance 190 m straight west...

A:

Q: 1) A car starting from rest is traveling with a constant acceleration of 30 mis Find s veledity aher...

A: Here, we calculate the given as follow;

Q: A highway curve has a radius of 475 m and a banking angle of 20°. If a 1,200-kg car can safely negot...

A: According to Bartleby guidelines, I can answer the first three subparts only. If you need help with ...

Q: Determine the quantity and type of charge on an object that has 3.62 x 10^12 more protons than elect...

A: Proton is positive charge particle it has a charge of + 1.6 × 10-19 Coulomb charge.

Q: Select all of the following that describe an AU. OThe average distance between Earth and our Sun Abo...

A: Astronomical unit is a unit of distance commonly known as AU.

Q: As two trains move along a track, their conductors suddenly notice that they are headed toward each ...

A:

Q: (4%) Problem 4: AAV =1.5 V battery loses E = 5.5 J of energy each day (t 24 hrs) powering a cell pho...

A: Given: ∆V=1.5 V Energy loss, E=5.5 J Time, t=24 hrs   To find (a) write an expression for current. ...

Q: A puck is sliding around a circular track that is banked at an angle o with respect to the horizonta...

A:

Q: Consider a sports car moving on a straight track according to the equation x x is in meters and t is...

A: It is given that x=2t2+t+1       ...(1)Velocity is v=dxdt=4t+1    ...(2)Acceleration isa=dvdt=4     ...

Q: Explain The term “white coal”

A:

Q: A car is tied to a tree with a rope, while you push on the rope with a force F, exactly in the middl...

A:

Q: The ends of a cylindrical copper rod are maintained at two different temperatures. The rod conducts ...

A:

Q: Using magnetic confinement, one particle is restrained to levitate over another. What is this separa...

A: For levitation,  weight should be equal to the electrostatic force, i.e. weight = electrostatic forc...

Q: f the density and atomic mass of copper are respectively 8.80 x 103 kg/m3 and 63.5 kg/kmol (note tha...

A:

Q: How far apart must be a proton from a group of 24 protons (held in place next to one another) if the...

A: Group of 24 protons and a proton lone Required: Mass of earth, ME = 5.97 x 1024 kg Radius of earth, ...

Q: (a) A straight conducting wire is placed perpendicularly to the earth magnetic field at a location. ...

A:

Q: A lump of clay of mass 0.28 kg is dropped from a height of 10.8 m. The clay comes to a full stop 0....

A: mass of lump of clay (m) = 0.28 kg initial height (h) = 10.8 mInitial velocity (u) = 0 ms   

Q: Pluto’s orbit around the Sun is highly elliptical compared to the planets in our Solar System. It ha...

A: Given value--- perihelion distance of 29.7 AU aphelion distance of 49.5 AU We have to find--- a) ...

Q: nA thermometer is taken from a room where the temperature is 24°C|to the outdoors, where the tempera...

A:

Q: Four charges form an isosceles trapezoid: Q1 = +2C is located at vertex X; Q2 = -3C is located at ve...

A: Q1 = 2C Q2=-3C Q3 =+4C Q4 =-5C Shorter length of trapezoid= 4m Longer length of trapezoid= 8m Altitu...

Q: The electric field just above the surface of the charged drum of a photocopying machine has a magnit...

A: Given in question - Electric field (E) = 3.0×105 N/c To find - Surface charge density(σ) on the drum...

Q: A bug starts at point A, crawls 8.0 cm east, then 5.0 cm south, 3.0 cm west, and 4.0 cm north to poi...

A:

Q: 1. A 400-lb object is released from rest 500 ft above the ground and allowed to fall under the influ...

A:

Q: A spacecraft starts from rest, and makes a journey to a destination 330000 km from its starting poin...

A: Total distance travel by spacecraft = 33000km acceleration of space Craft in 1st half part of journe...

Q: Charge q 1 and q 2 exert 20-N repulsive forces on each other. Calculate the repulsive force of one c...

A:

Q: 3. The vector position of a particle varies in time according to the expression r = (3.00i – 6.00/²j...

A:

Q: Given data : Mass of ball=5 kg Velocity of ball =2.8 m/s Determine kinetic energy

A: Given data : Velocity of ball=V Mass of ball=m   To find : Kinetic energy

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.