**Weegy:** A. 5,362.56 N is the answer.

**User:** An object with a mass of 78 kilograms is lifted through a height of 6 meters. How much work is done? A. 47.75 J
B. 468 J
C. 4,586.4 J
D. 764.4 J

**Weegy:** An object with a mass of 78 kilograms is lifted through a height of 6 meters. 4,568.4J of work is done.

**User:** A car travels from Boston to Hartford in 4 hours. The two cities are 240 kilometers apart. What was the average speed of the car during the trip?
A. 60 km/hour B. 4 km/hour C. 960 km/hour D. 36 km/hour

**Weegy:** D. 60 km/hour was the average speed of the car during the trip. SOLUTION :
240/4=60 kph (C)

**User:** An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon?
A. 196 N B. 20 N
C. 1,176 N D. 12.24 N

**Weegy:** C. 196 N

**User:** Oil flows upward in the wick of a lantern because of the liquid property called A. density.
B. meniscusity.
C. viscosity.
D. capillarity.

**Weegy:** C. Capillarity

**User:** If an object has a mass of 20 kg, what is the force of gravity acting on it on earth? A. 2.04 kg
B. 1.96 kg
C. 32.67 N
D. 196 N

**Weegy:** C. 196 N. 20 * 9.789 = 195.78, rounded to 196 N.

**User:** The acceleration of gravity is a constant equal to _______ meters per second squared. A. 9.8
B. 10.2
C. 7.6
D. 8.4

**Weegy:** 9.8 meters per second squared

**User:** A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve?
A. 16 meters B. 32 meters C. 160 meters D. 80 meters

**Weegy:** A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve? B. [ 80 meters cf = mv^2/r, 6000 = 1200*400/r
r = 80 meters. ]

**User:** In a practical machine, the power output is _______ the power input. A. equal to
B. multiplied by
C. smaller than
D. larger than ...

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