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Physics Problem involving Youngs Modulus *copper wire*? - Mathskey A copper wire (with a Young's modulus of 120 x 109 Pa) of length 3 08 m is observed to stretch by 2 25 mm when a weight of 136 N is hung from one end What is the diameter of the wire? I need some help setting up the equation I'm assuming I need to use Hook's Law F A=y*(Delta L L)
Find the value of d such that the line? 2x + dy = 4 has slope -5 Where m = slope b = y - intercept 2 x + d y = 4 is convert to the Slope intercept form d y = 4 - 2 x y = ( 4 - 2 x) d y = 4 d - ( 2 x d) y = - ( 2 x d) + 4 d y = - ( 2 d) x + 4 d Slope ( m ) = - 2 d and y - intercept = 4 d Therefore - 2 d = - 5 - 2 - 5 = d 2 5 = d ⇒ d = 2 5 Solution : The value of
Find the horizontal acceleration of the block? - Mathskey. com Mass of the block,m=7 kg Weight of the block,W=mg =(7)(9 81) =68 67 N Horizontal component of the force F1 is (F1)x=F1cos45=46cos45=32 53 N Vertical component of the force F1 is (F1)y=-F1sin45=-46sin45=-32 53 N To find acceleration using D'Almbert equation, ΣFx = max (F1)x=max ax=(F1)x m = 32 53 7 =4 647 m s^2 Horizontal acceleration, ax
determine the following - Mathskey. com Diameter ofthe pulley, D P = 75 mm = 0 075 m Cuttingforce, F C = 2500 N Torque lost due to friction , T F = 15 N-m-----1 Calculate the torque required at the driving pulley: T - T F = (F C ) (D P 2) T - 15 = (2500) (0 075 2) T = 952 5 N-m-----2 Calculate driving force: T = ( F D ) (Effective diameter 2) 952 5 = ( F D ) (0 25 2) F D
physics - Mathskey. com The speed of light that should be used is 3 00x10 8 m s u= 1 66x10-27 kg 1 Question 4 options:
I need help with these answers. ? - Mathskey d 24 4 Suppose you make $12 an hour as a lifeguard at the community pool during the summer Let h represent the number of hours you work in a week Write an expression that represents the amount of money you earn in a week and evaluate it for h = 15 (1 point) a 12h; $180 b 12 + h; $27 c 7(12h); $1,260 d 5(12h); $900
radial acceleration of a point - Mathskey. com A wheel of diameter 35 0cm starts from rest and rotates with a constant angular acceleration of 3 50rad s2 At the instant the wheel has completed its second revolution, compute the radial acceleration of a point on the rim in two w