You plead innocent to a charge of running a red light, claiming that the light was doppler-shifted so as to appear green. Unfortunately, you were then charged with speeding. How fast were you going? Take the wavelength of red and green light to be 0.7 and 0.55 micron, respectively?

Q: 5. Jim's mass is m = 62 kg. He is standing in a lift (an elevator), with no motion relative to the…

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Q: 9. Find vn. Let V₁ = 4V, R₁ = 2k, R₂ = 4 kN, R3 = 2 kN, R₁ = 2 kN, V¯ = -1.67 V, and V+ = 5 V. a)…

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Q: What is the efficiency of a machine that produces 23 J of work from an input of 55 J? A. 32 %…

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Q: into a water tank. The stone has negligible spe- ds to sink to the bottom. While sinking, the resi d…

A: Given as, m= 3 kg, t= 3 sec, R= 9 N, u= 0 m/sec.

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Q: Calculate q when a system does 49.67 J of work and its energy decreases by 77.26 J.

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Q: A large household air conditioner may consume 13.0 kW of power. What is the cost (in $) of operating…

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Q: 4. W - 100 J t-10 s P=? 7. W-500 J t=25s P=? *** 5. W=225 J P-25 W t=? 8. W=336 J t=? P = 14 W 6.…

A: 4) W=100 J t=10 s P=W/t=100/10=10 w 5) W=225 J P=25 w t=W/p=225/25=25 s 6) P=20 w t=15 s…

Q: E(n) = n² h² 8m₂ L2 3² × (6.62607004 × 10-34 Js)² = 8 ×9.1093856 × 10-3¹ kg × (8.4 × 10-¹0)² m² It's…

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Q: sume that R₁ = 42 . R₂ = 71. R₂ = 20 . R₁ = 73 . R = 20 2. R6=25 2. Submit ✓ Correct Part C Previous…

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Q: An 1100 kg car moves at 22m/s. Neglecting friction, what braking force is needed to stop the car in…

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Q: What is the power in watts of a motor rated ¼ hp?…

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Q: A val IS KICKeu iHoI ne grounu at pom U WII an al verocty vo makes an angle 0 = 30° with the…

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Q: A bedly bes 40 J of workin What is its power? 6 S.

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Q: the KE of a 1 000 kg . Calculate car travelling at 60 km/h.

A: Given data:  Mass (m) = 1000 kg Velocity (v) = 60 km/h Required: Kinetic Energy (KE)

Q: What is the approximate cost of operating a 80 W light bulb for 3.0 h per day for 2 weeks, if…

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Q: Initial Final K, +马+馬,WK y.AE te= 0.80 s Y3D0.70m to Earth ti= 0 Earth mbarbell=13.6 kg వా

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Q: Calculate q when a system does 46.33 J of work and its energy decreases by 73.53 J.   Round your…

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Q: Four resistors of the same resistance 74 are connected in a manner as shown below. The connection…

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Q: 10. The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N ? Ans. 2 ms

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Q: object with 4.8 kg dropped with initial velocity 20m/s . The air resistance is 0.002v newton. Where…

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Q: 75%. Calculate the pow air is 1.864 Kg/m³.

A: Given as, d=18 m, v=10ms , η=0.75, ρ=1.864 kgm3 .

Q: Lightbulb A was found out to give 30.0W of power, producing the same brightness as lightbulb B…

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Q: Water is pumped between two tanks (A and B) in a single pipe with energy equation of HP3DZ8-ZA…

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Q: Two stacked blocks are pushed along a horizontal table. Force F' is applied horizontally to the 6m…

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Q: 8. Your doctor has told you to watch your weight. Of course, your weight comprises two factors, so…

A: Given, x1=2.1 cmx2=3.5 cm

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Q: A 83kg person climbs a 6.2m ladder in 14s. What is the power out put for this process

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Q: will it ta

A: Given: Mass of piano is 385 kg Height is 16 m Power is 2750 W

Q: body Becond What jB jts power ? joules of work jm 9 do es 45

A: Given data :            Work  =  w           Time  =  t             To find  :                Power

Q: A motor consumes 15 kJ in 0.854 minutes. Calculate its power.

A: Given: Energy(E) =15kJ=15000J Time(t)=0.854minutes=51.24sec To find: Power(P)

Q: Which of the following formulae for Power is INCORRECT? а. V b. v2 R С. VI d. 12R

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Q: 2. A ead slides without friction around a loop-the-loop. The bead is released from a heigh h=3.5 R.…

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Q: 25.0 0 www- 15.0 0 ww 25.0 0 30.00 ww ww 10.00 20.0 0 20.0 0 Fwwww 50.0 0 :40.00 50.0 0

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Q: A boy of mass 35 kg climbs a vertical rope 10 meters in length in 12 seconds with constant velocity.…

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Q: 5. F = x²i+czj- yk If the force is conservative, the value of the constant c is A. -2 B. 3 C. -5 D.…

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