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1. ### Note: The symbol for an Atomic Mass Unit is “ u ”. A proton of mass 1 u undergoes a headon elastic collision with a stationary atomic?

...the relative velocity of approach = relative velocity of separation, or 472 m/s = V - U where V is the post-collision velocity of the nucleus and U is...

1 Answers · Science & Mathematics · 18/06/2020

2. ### Potential energy U relation to Q charge help!?

Energy stored E = 1/2 CV^2 where V = voltage but C = Q/V so V = Q/C &  V^2 = Q^2/C^2 s0 E = 1/2 CV^2 = 1/2 C*Q^2/C^2 = Q^2/(2C) Now if...

2 Answers · Science & Mathematics · 17/06/2020

3. ### What would happen if a U .S. spacecraft accidentally turned into a wormhole?  ?

Left turn or Right turn?

3 Answers · Science & Mathematics · 27/07/2020

4. ### The speed of a boat in still water is v. The boat is to make a round-trip in a river whose current travels at speed u .?

1 Answers · Science & Mathematics · 02/08/2020

5. ### During a rockslide, a 330 kg rock slides from rest down a hillside that is 500 m long and 300 m high. ?

(a) U = mgh = 330kg * 9.81m/s² * 300m = 9.71e5 J (b) friction work W...0.12 * 330kg * 9.81m/s² * 500m * (4/5) = 9.32e4 J (c) KE = U - W = 8.78e5 J (d) 8.78e5 J = ½ * 330kg * V²...

1 Answers · Science & Mathematics · 10/07/2020

6. ### Physics - Electric Potential?

U = (kQ₁Q₂/r₁₂) + (kQ₂Q₃/r₂₃) + (kQ₁Q₃... = –3 C r₁₂ = 10 m r₂₃ = 4 m r₁₃ = 6 m U = k(35•16/10 – 16•3/4  – 35•3/6) You can do the math, ...

1 Answers · Science & Mathematics · 14/06/2020

7. ### Meaning of this differential equation for velocity?

... to write that as T then you get T*dv/dt = T*a(t) = u - v(t)  --> a(t) = acceleration So T is some sort of time constant...

1 Answers · Science & Mathematics · 11/09/2020

8. ### An object 4.56 centimeters tall is placed 78.3 centimeters in front of a diverging lens. The lens has a focal length of 45.9 centimeters. ?

(1/ u ) + (1/v) = 1/f (1/78.3) + (1/v) = -1/45.9 1/v = -(1/45.9) - (1/78.3) v = 1 / [-(1...78.3)] Image distance, v = -28.9 cm Height of the image = 4.56 × |v/ u | = 4.56 × |-28.9/78.3| = 1.68 cm Since v is negative, the image ...

3 Answers · Science & Mathematics · 24/07/2020

9. ### A block with mass m = 12 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4784 N/m after being?

1) energy stored in spring was U = ½kx² = ½ * 4784N...8.4 m/s (8.43 before rounding) 5) Now U = ½ * 4784N/m * (0.14m)²...

1 Answers · Science & Mathematics · 07/08/2020

10. ### E/M question?

good start -- U = kQq / d at point of triangle, U = 2*kQq / x at midpoint of base, U = 2*kQq / (x/2) = 4*kQq / x so Δ U = 2*kQq / x

2 Answers · Science & Mathematics · 05/02/2020