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1. ### A 9.35 kg block is being lowered down a ramp, inclined at θ = 39 degrees, by the 4.05 kg pulley. The pulley has a radius of 45.0 cm  ?

Answer: a = 5.07 m/s² What accelerates the block is its weight, more precisely the component of weight in direction of slope F = mg sin θ What opposes this force is the inertia of the block plus inertia of the pulley. Problem...

2 Answers · Science & Mathematics · 27/11/2020

2. ### Physics questions center of mass?

...order for the missing ¼ of the pizza to "pull" the CM of the uneaten part to (0, 0), that missing part must have a CM at 3...

2 Answers · Science & Mathematics · 23/11/2020

3. ### Physics question springs?

(a) Spring PE, U = ½kx² = ½(124)(0.25)² = 3.875 J (b) KE of block+bullet = Spring PE ½(m₁+m₂)v² = 3.875 v² = 2(3.875)/(m₁+m₂) v² = 7...

1 Answers · Science & Mathematics · 16/11/2020

.../AB² = 2/3 RS = AB√(2/3) = 18√(2/3) = 6√6 cm = 14.7cm approx.

3 Answers · Science & Mathematics · 16/11/2020

5. ### Physics question conservation of energy?

...block is v m/s when the spring expands to a compression of only 2.20 cm , by the law of energy conservation: =>PE(i) of the spring = PE(of spring...

2 Answers · Science & Mathematics · 11/11/2020

6. ### Hi I need help?

...and w = 8 and l = 9 The original box had dimensions of 7 cm by 8 cm by 9 cm .

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

7. ### Cylinder capacity 4.25 L, cylinder diameter of 13 what is the height of the cylinder?

Let height of the cylinder =  h cm   and  R = Radius of the Cylinder Capacity of the...h  =  4250 => h  =  4250 divided by π (6.5)²   =   32.02 cm i.e.  =  32 cm .............. Answer

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

8. ### HELP PLS ASAP?

See below for work and solution.

2 Answers · Science & Mathematics · 07/11/2020

9. ### Physics Grade 10 Need urgent help  ?

...just indicating the image is real} =>di = [8 x 4.5]/6 =>di = 6 cm b)  By m = hi/ho = 4.5/6 = 0.75 c) For concave mirror, this condition...

1 Answers · Science & Mathematics · 06/11/2020

10. ### Math Problem Help?

We know the pen is the hypotenuse of a triangle with base² = 12²+12² = 288 17² = 288+h² h² = 17²-288 = (1cm)² so the box has height 1cm assuming the pen width can be ignored.

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

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