Socola and Brooke are balanced on a teeter-totter plank as shown below. Socola has a mass...

Socola and Brooke are balanced on a teeter-totter plank as shown below. Socola has a mass of 7.7 kg, and Brooke’s mass is 53 kg. Brooke is located 1.0 m from the pivot. Assume the plank is massless, and calculate how far Socola is from the pivot (x).

Expert Solution

genius_generous answered 1 year ago

A girl of mass mG is standing on a plank of mass mP. Both are originally...

A girl of mass mG is standing on a plank of mass mP. Both are originally at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk along the plank at a constant velocity vGP to the right relative to the plank. (The subscript GP denotes the girl relative to the plank.) (a) What is the velocity vPI of the plank relative to the surface of the ice? (Use the following as necessary: vGP,...

The helicopter shown in the figure below has a mass of 12 tons and it needs...

The helicopter shown in the figure below has a mass of 12 tons and it needs to rotate its 14 meter blades (diameter of the blades = 14 meters) at 670 rpm just to hover (stand still in mid air) without any additional load. The air flow caused by the rotation of the helicopter blades may be modeled as a moving cylindrical body of air having a 14 meter diameter. The average velocity of the airflow of that cylindrical air-body...

A twisting swing has a plank seat 2ft wide of negligible mass. It takes a force...

A twisting swing has a plank seat 2ft wide of negligible mass. It takes a force of 20 punds applied to each side of the seat edge to twist a 180 pound person sitting in the seat. That force is pprox. costant as the person is wrapped up 5 twists. After being released from rest it takes 8 seconds to unwind if teh person extended their full height of 6 feet, and 4 sec if they are doubled up to...

For the balanced equation shown below, if the reaction of 24.3 grams of SO2 react with...

For the balanced equation shown below, if the reaction of 24.3 grams of SO2 react with 42.3 g of H2S producing 4.58 grams of sulfur, what is the percent yield? 2 H2S + SO2 → 3 S + 2 H2O

When the half reaction shown below is balanced, the sum of the stoichiometricc coefficients is: __e–...

When the half reaction shown below is balanced, the sum of the stoichiometricc coefficients is: __e– +__H+(aq) +__Cr2O72–(aq)  __Cr3+(aq) +__H2O(l) A. 24 B. 23 C. 10 D. 30 E. 15

1)Use the balanced chemical equation below to calculate the mass of KCl that is formed for...

1)Use the balanced chemical equation below to calculate the mass of KCl that is formed for every 164 L of O2(g) produced. You may assume the reaction takes place at STP. 2 KClO3(s) → 2 KCl(s) + 3 O2(g) 2)Identify the limiting reactant and calculate the theoretical yield of CO2(g), in grams, if 21.5 L of C3H8(g) reacts with 96.1 L of O2(g) according the the balanced chemical equation below. C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g)

For the balanced equation shown below, if 98.0 grams of C2H3Br3 were reacted with 62.2 grams...

For the balanced equation shown below, if 98.0 grams of C2H3Br3 were reacted with 62.2 grams of O2, how many grams of Br2 would be produced? 4C2H3Br3+11O2=8CO2+6H2P+6Br2

(a) For the balanced equation shown below, if 10 grams of Ca(OH)2 reacted with 16.5 grams...

(a) For the balanced equation shown below, if 10 grams of Ca(OH)2 reacted with 16.5 grams H3PO4, How many grams of hydroxide (OH) woudl be produced? (Hint: assuming that the reactants reacted completely. You are asked to find the theoretical yield for the hydroxide) 3Ca(OH)2 + 2H3PO4 ------------> Ca3(PO4)2 + 6OH (b) assuming that the actual yield is 3.085 grams from the reaction from (a), calculate the percent yield using your answer from (a).

Consider the balanced chemical equation shown below: 2 NH3 + 5 F2 ---> N2F4 + 6...

Consider the balanced chemical equation shown below: 2 NH3 + 5 F2 ---> N2F4 + 6 HF 1. How many moles of N2F4 form per mole of reaction? (Answer is in mol / mol reaction) 2. If 0.022 moles of HF form, how many moles of reaction have been completed? I tried both .5, and 0.0146 for answer for 1, and .0256 and then 0.0183 for my answer for 2 - but none of those are correct.

As shown in the figure below, a box of mass m = 68.0 kg (initially at...

As shown in the figure below, a box of mass m = 68.0 kg (initially at rest) is pushed a distance d = 91.0 m across a rough warehouse floor by an applied force of FA = 226 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. Determine the following. (For parts (a) through (d), give your answer to the nearest multiple of 10.) (d) work...

Question