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Harman [31]
3 years ago
12

Calculate the volume of this regular solid.

Physics
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

2122.64 cm^3

Explanation:

Some data in the problem are missing.

Missing values:

Radius of the cylinder: 13 cm

Height of the cylinder: 4 cm

The volume of a cylinder is given by

V=\pi r^2 h

where

r is the radius of the base of the cylinder

h is the height of the cylinder

In this problem, we have:

r = 13 cm (radius)

h = 4 cm (height)

Therefore, the volume of the cylinder is:

V=\pi (13)^2(4)=2122.64 cm^3

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A box with mass (m) it's sliding along on a friction-free surface at 9.87 m/s at a height of 1.81 meters. It travels down the hi
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A) The answer is 11.53 m/s

The final kinetic energy (KEf) is the sum of initial kinetic energy (KEi) and initial potential energy (PEi).
KEf = KEi + PEi

Kinetic energy depends on mass (m) and velocity (v)
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KEi = 1/2 m * vi²

Potential energy depends on mass (m), acceleration (a), and height (h):
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KEf = KEi + <span>PEi
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..
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1/2 vf² =  1/2 * 9.87² + 9.8 * 1.81
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b) The answer is 6.78 m

The kinetic energy at the bottom (KE) is equal to the potential energy at the highest point (PE)
KE = PE

Kinetic energy depends on mass (m) and velocity (v)
KE = 1/2 m * v²

Potential energy depends on mass (m), acceleration (a), and height (h):
PE = m * a * h

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1/2 * 11.53² = 9.8 * h
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66.47 = 9.8 * h
h = 66.47 / 9.8
h = 6.78 m
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