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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)
www. mathskey. com M ultiply and or D ivide in order from left to right (MD) \ 4 A dd and or S ubtract in order from left to right (AS) \ A simple technique for remembering the order of operations is turned \ into phrase "P lease E xcuse M y D ear A unty S ally" \ \ First operation is addition \ (Add: ) \ \ Next operation is multiplication \
www. mathskey. com M ultiply and or D ivide in order from left to right (MD) \ 4 A dd and or S ubtract in order from left to right (AS) \ A simple technique for remembering the order of operations is turned \ into phrase "P lease E xcuse M y D ear A unty S ally" \ \ The expression is The given expression there are no grouping symbols \ First operation is
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 Downward acceleration of the droplet is a = 2 50 m s 2 Distance between plates d = 1 cm = 1 × 10 -2 = 0 01 m Potential difference between the plates v = 533
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
Physics practice problems help? - Mathskey. com Mass of the solid m s = 20 g Specific heat of the solid= Cs Temperature of the fluid Tf = 20°C Mass of the fliud m f = 100 g Specific heat of the fluid= Cf Temperature at thermal equilibrium Te = 30°C ΔTs = Te - Ts = 30 - 70 = - 40 ΔTf = Te - Tf = 30 - 20 = 10 At thermal equilibrium,Qhot = -Qcold m f Cf (ΔTf) = -m s Cs(ΔTs) 100