@amy's hints are sound. vertically, T*sinΘ = m*g T = 0.185kg * 9.81m/s² / sin13.0º = 8.07 N horizontally, T*cosΘ = mω²r = mω²LcosΘ ω² = T / mL = 8.07N / (0.185kg * 0.680m) = 64.1...

2 Answers · Science & Mathematics · 30/10/2020

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

minimum speed such that g = v²/r v = √(gr) = √(9.81m/s² * 0.580m) = 2.39 m/s time to fall from h = (2.45 + 0.58)m = 3.03 m t = √(2h / g) = √(2 * 3.03m / 9.81m/s²) = 0.786 s distance to right x = v*t = 1.87 m If you find this helpful, please select Favorite Answer!

1 Answers · Science & Mathematics · 30/10/2020

Treating 90

**cm**as "distant" y ≈ (n+½)λD / d 0.21 m ≈ (2+½)*λ*0.90m / 6e-6m λ ≈ 5.6e-7 m = 560 nm1 Answers · Science & Mathematics · 31/10/2020

...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

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

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

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

...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

...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

...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