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related to: Cm

1. ### A child is rolling 24 3 cm of clay into the shape of a cylinder. The length of the cylinder is increasing at a rate of 0.30 cm /s. ?

I assume you meant 24 cm ^3 of clay -->  call that V.  THe volume fo the cylinder must be constant as long.../(pi*l)) so dr/dt = - sqrt(V/(pi*l))/(2*l) dl/dt = -sqrt(24/(pi*9))/(2*9) *0.3 cm /s = -0.05 cm /s

1 Answers · Science & Mathematics · 09/04/2020

2. ### A green laser with a wavelength of 5.32x10^-7m is shone on a diffraction grating with 2700 lines/ cm . Screen is 35m from diffraction grating.?

...5.03m! Distance between slits (lines) is d = 1/2700 cm = 3.7037*10^-4cm =  3.7037*10^-6m. For the final answer this should be ...

1 Answers · Science & Mathematics · 12/06/2020

3. ### A cylindrical roll of sod is being unrolled such that its volume is decreasing at a rate of 2500 cm ^3/s. If the length of the roll is ?

V= π*r^2*h, h= 45 cm dV/dt= 90πr*dr/dt 2500= 90π*12.5*dr/dt dr/dt= 250/(112.5π)≈ 0.7074 cm /s

1 Answers · Science & Mathematics · 31/03/2020

4. ### A 20 cm diameter, 2kg solid disk is rotating at 200rpm.?

before Jd = 2/2*0.1^2 = 0.01 kg*m^2 ω = 2PI/60*n = 0.10472*200 = 20.94 rad/sec L = Jd*ω = 20.94*0.01 = 0.2094 kg*m^2/sec after (L is conserved) Jℓ = 1*0.10^2 = 0.01 kg*m^2 J = Jd+Jℓ = 0.01+0.01 = 0.02 kg*m^2 since J = 2Jd...

2 Answers · Science & Mathematics · 14/11/2019

5. ### A 12.3kg ball is shot out of a cannon vertically up. The spring (k= 1.62x10^4 N/m) in the cannon is compressed by 61.7 cm to shoot the ball.?

This question has nothing to do with Personal Finance, and you will not get a useful answer here.

2 Answers · Science & Mathematics · 29/10/2019

6. ### In a pinball game, a spring constant 175 N/ fires a 105g pinball from its max compression of 11.5 cm . The pinball first travels horizontally?

A) determine the max height the ball reaches? Ignoring friction, the spring potential energy will be converted to gravity potential. Assume the spring constant is 175 N/m PE = PS mgh = ½kx² h = kx² / 2mg h = 175(0...

3 Answers · Science & Mathematics · 29/10/2019

7. ### Suppose that 4 J of work is needed to stretch a spring from its natural length of 26 cm to a length of 43 cm .?

Try this on for size.

1 Answers · Science & Mathematics · 15/06/2020

8. ### Calculus Question?

Circle => x cm Square => 700 - x cm Hence, 2πr = x so, r = x/2π =>...x/2π - 87.5 + x/8 = 0....at stationary value => x = 700π/(π + 4) i.e. x = 308 cm ....for the circle and 392 cm for the square :)>

2 Answers · Science & Mathematics · 17/04/2020

area of portrait = 20 * 12 = 240 cm ^2 area of border = 1/3 * area of portrait = 1/3 * 240 = 80 cm ^2 Now we have...

3 Answers · Science & Mathematics · 06/04/2020

10. ### Physics question ?

15 cm rise means that's a HUGE clock. Assume the mass of the...

1 Answers · Science & Mathematics · 20/08/2020