Three 25-lb boxes are placed on an oak beam. Determine the vertical reaction force at the left end of the beam. Let a = 70 in. and b = 36 in.

Loads P = 667 N and Q = 376 N act on an oak beam. Determine the magnitude of the largest shear force (consider both positive and negative values) in the beam. Let a = 0.4 m and b = 0.7 m.

Determine the reaction force at B. Let w = 15 lb/in., a = 67 in., and EI = 58 × 106 lb·in.2.

Refer to the graph above. The government imposes a $40 price ceiling in the market for sweaters. As a result, ____ will be bought and sold. 

Determine the deflection at C. Let M = 6,500 lb·in., a = 69 in., b = 33 in., and EI = 106 × 106 lb·in.2.

Determine the deflection at C. Let w = 12 lb/in., a = 94 in., b = 24 in., and EI = 90 × 106 lb·in.2.

Determine the deflection at C. Let P = 170 lb, a = 128 in., b = 32 in., and EI = 166 × 106 lb·in.2.

TRUE OR FALSE: Empirical studies (meaning, “real-world data”) have shown that historical increases in the minimum wage led to large increases in unemployment. 

A recent article in the New York Times reported that the price of eggs had risen 35% in the past year. Over the same time period, the number of eggs bought and sold decreased. Which of the following explanations is consistent with these observations?

Determine the reaction moment at A. Let w = 2 lb/in., a = 102 in., and EI = 52 × 106 lb·in.2.