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

...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

(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**= 14.7**cm**approx.3 Answers · Science & Mathematics · 16/11/2020

...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

...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

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**.............. Answer2 Answers · Science & Mathematics · 09/11/2020

...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

We know the pen is the hypotenuse of a triangle with base² = 12²+12² = 288 17² = 288+h² h² = 17²-288 = (1

**cm**)² so the box has height 1**cm**assuming the pen width can be ignored.1 Answers · Science & Mathematics · 11/11/2020