4. The thermal radiation from the earth's surface peaks at a wavelength of approximately 10 um. What is the energy of a photon at this wavelength? A. 2.4 eV C. 0.24 eV В. 1.2 eV D. 0.12 eV

Q: 11) A student performs an experiment with three unknown fluids and obtains the following…

A:

Q: Question 3. A force F pulls a box of mass m at an angle of 6 above the horizontal. The coefficient…

A: Given data The force magnitude is F The angle of inclination is θ The mass of the box is m The…

Q: A car travels over the top of a hill. Suppose that the radius of curvature at the top of the hill is…

A:

Q: 7. In the circuit shown below: (a) Rank in order from most to least bright to least bright, the…

A:

Q: 15. Given the circuit below, find the following. 11 12 13 24 V RE R2 R3 10 0 20 N 30 n Rr= I =. V =…

A: Voltage of the circuit is V = 24 V Magnitude of resistance 1 is R1 = 10 ohms Magnitude of resistance…

Q: A student stands at the

A: (a) Initial position of the stone x=0 my=50.0 m (b) Components of initial velocity Horizontal…

Q: 2. A light travels and strikes a mirror at 400. What is the angle of reflection? a. 100 b. 200 с.…

A: 2) Given: Here, θi is the incidence angle.

Q: 8. Determine the acceleration of the block up the hill. The coefficient of friction is 0.1 M= 3.0 kg…

A:

Q: A cable exerts a constant upward tension of magnitude 1.94 x 104 N on a 1.60 x 103 kg elevator as it…

A:

Q: A string oscillates according to the equation y´ = (0.488 cm) sin[(1/3.0 cm-1)x] cos[(40.2 t s-1)t].…

A:

Q: 5. • A concave spherical mirror has a radius of curvature of 10.0 cm. Calculate the location and…

A:

Q: List two differences For the wave below travels at 4 cm/s. W wavelength into per

A: Two differences between the sound wave and lightwave    Sound is longitudinal waves, light waves…

Q: IE .. A car on a circular track accelerates from rest. (a) The car experiences (1) only angular…

A: a) Angular acceleration to increase its speed and centripetal acceleration to keep it in circle so ,…

Q: 3. If one of the masses is tripled, how does the gravity change? If the din Ruitu ohange?

A:

Q: 14,200 kg railroad cart that is traveling at a speed of 24.0 m/s collides with a 11,500 kg cart that…

A: Given data:  m1 = 14200 kg and V1 = 24.0 m/s m2 = 11500 kg and V2 = 0 m/s Carts lock together after…

Q: 15. There are 750 registered voters in one precinct. In a primary election, 64 out of 100 voters…

A: so given that only 64 out of a hundred voter actually voted so the voting in percentage is  64% ( 1%…

Q: 3. An open tank contains brine to a depth of brine is 1,030 kg/m³ and density of oil is 880 kg/m².…

A: Given:- Brine depth  = 2.0 m  oil on top of the brine = 3 m  density of brine = 1030 kg/m3  density…

Q: 3) A human body has a temperature of 98.6 °F ( 37 °C or 310 K) on average, if the outside…

A:

Q: slope =..... k=...... Slope = ……. % Error (k) The true value (which used in your experiment), kr =…

A: This problem can be solved using basic formula of slope of any graph and it is related to the…

Q: efore ball A, at what height will ball A catch up to ball B? 2) [Vertical] A green ball (m= 2 kg) is…

A: Given,  Mass of green ball = 2 kg . Height from which green ball is dropped = 8 m . At the moment it…

Q: 2) A) The transfer and distribution of thermal energy from molecule to molecule within a body is? a)…

A: Given data: The transfer of thermal energy from molecule to molecule within body  Required: The type…

Q: rent. A 115 V dc generator delivers 120 A to a load. If the generator has an efficiency of 81…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3. A particle with mass m and charge q=+1.6× 10C has a speed of v-4.5x10' m/s at point A. It enters…

A: As given in figure the diameter of the semicircle is d=50cm=0.5m Therefore its radius is r=d/2=0.25m…

Q: Use Newton's Second Law to determine an equation for the horizontal acceleration of the system (the…

A: Given data, Combined mass of the system = MT+ml Force on the system = FD,R

Q: A 11.7-kg object hangs in equilibrium from a string with a total length of 5.50 m and a linear mass…

A:

Q: *44. The drawing shows a large cube (mass = 25 kg) being accelerated across a horizontal…

A: Given values: Mass of the large block, M=25 kg Mass of small block, m=4.0 kg Coefficient of static…

Q: 14. Lee pushed horizontally with a 80-N force on a 20-kg mass 10 meters across a floor. Calculate to…

A: 14. Given Horizontal force on Lee F = 80 N Mass of Lee m = 20 kg Distance travelled across a floor.…

Q: 8. A 50 kg ice skater sp making 2.5 turns eac measurements indica What horizontal for

A: Given,  mass of skater = 50 kg Making 2.5 turns each second means angular velocity , ω = 2.5×2π…

Q: 15. The third floor of a house is 8.0 meters above street level. How much work is needed to move a…

A: Potential energy : It is the energy held by an object because of its position relative to other…

Q: 3. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of the…

A: Required : For which type of electromagnetic radiation, is the atmosphere of the Earth completely…

Q: Step 2. Refer back to Figure 8.1. For which types of electromagnetic radiation is the atmosphere of…

A: For which type of the electromagnetic radiation is the atmosphere of the Earth totally opaque.

Q: 7,8,9

A: