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Use the standard formula for an effective spring constant of a prismatic member: k = E*A/L where E is Young's modulus, A is cross sectional area, L is length. You can derive this from stress, strain, and Young's modulus definitions. A will equal Pi*d^2/4, if it is approximated as a cylinder.

Just so you know, spring scales will not measure mass. They measure force. If it is calibrated in kilograms or grams, it is using these as pseudo-units of force. Spring scales should be calibrated in Newtons or pounds.

step 1: ignoring the negation and the imaginary number, find the fourth root of 20. Since it is an irrational number, I will represent it as "qart(20)" meaning the quartenary root of 20. Step 2: Now, we need to find the quartenary root of the -i part of it. To do this, translate the number of...

Use energy considerations. How much work did she do compressing the book against the spring? How much energy is stored in a compressed ideal spring due to the work done compressing? When it slides away from the compressed position, how much kinetic energy will it have if it was at rest under...

To find torque, multiply the force applied by the distance from center to position of application. Only take the component of the force which is perpendicular to this distance. Crank length: L Weight: m*g A) tau = L*m*g using m:=53kg; L:=0.165m; g:=9.8N/kg; tau = 85.701 Newton*meters B)...

Most timing codes in Flash games are based on the timing of the on movie_clip.enterframe() event, which means that the movie_clip contains two frames and switches back and fourth at a globally specified frame rate (typically 12 frames/second). Every 1/12 of a second, the movie clip changes...

I live in Southern Maine near the seacoast and weather conditions may also influence the answer. Let me know if you can recommend any brands.

Only the last one, There is a nonzero net force acting on the object. It requires a force to accelerate any object. If forces add to zero, no acceleration.