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related to: A.N.J

1. ### Physics help?

...½34•(0.12+0.087)² = 0.7284 J diff is 0.484 J Springs and weight k = F/d  k is spring constant in N /m  F is force and d is deflectionPE = ...

2 Answers · Science & Mathematics · 26/01/2021

2. ### If 600 J of work are needed to lift a crate up 4.2 meters at a constant speed, how much does the crate weigh?

E = Fd 600 = F•4.2 F = 143 N (b) answers should only be to 2 places, not 4.

2 Answers · Science & Mathematics · 25/01/2021

3. ### Physics help?

Please remember to select a Favorite Answer from among your results. The N /m² has units of pressure, not force. As we don't...

1 Answers · Science & Mathematics · 26/01/2021

4. ### Determine the following when given m, T, and E?

7.34 J = ½*0.327kg*V² 2*7.34J/0.327kg = V²...;<<<< ( a ) T = 0.216 so ω = 2π/0.216 = 29.1rad/s ω² = k/m so k...

1 Answers · Science & Mathematics · 22/01/2021

5. ### A block having a mass of 6 kg is projected with an initial velocity of 12 m/s, up an inclined plane. The plane is inclined at 45degre...?

...;<<<< a ) 224J = Ff*5m Ff = 224J/5m = 44.8N <...

2 Answers · Science & Mathematics · 25/01/2021

6. ### A 0.3 kg ball is projected by a spring of stiffness k= 300 N /m vertically upwards. The spring was compressed by 0.15 m. ?

...you asked only for PE which is 0.441 J , due to height. Presumably the spring is no...and weight k = F/d  k is spring constant in N /m  F is force and d is deflection ...

1 Answers · Science & Mathematics · 27/01/2021

7. ### Physics problem?

...2.46m = 3616 J and so the input work is 3616J / 0.875 = 4133 J and so you must pull over a distance d = 4133J / 648N = 6.38 m ◄ You can shortcut with 2...

1 Answers · Science & Mathematics · 20/01/2021

8. ### Physics Help?!?

airplane/ EPE = q*V = q*E*d q = EPE / E*d = -1.93e11J / (4.3e5V/m * 7300m) = -61 C Earth/ C = 4πε₀R where ε₀ = 8.85e-12 C²/N·m² so here C = 4π * 8.85e-12 C²/N·m² * 6.4e6m = 7...

1 Answers · Science & Mathematics · 21/01/2021

9. ### dynamic question?

a ) At the bottom, KE = ½mv²...160kg*((3m/s)²/2 + 9.8m/s²*120m) = 1.89e5 J so v = (1.89e5J * 2 / 160kg) = 48.6 m/s ≈ 49...160kg * (9.8 + 48.6²/25)m/s² = 1.67e4 N ↑ c) F' = m*(-g + v²/r) = 160kg * (-9...

1 Answers · Science & Mathematics · 26/01/2021

10. ### Why does potential energy at point 1 = 0J?

...it gets from position 1, it is easiest to set GPE = 0 J there. "In the initial state, the potential energy of the spring is...

1 Answers · Science & Mathematics · 26/01/2021