wellington

5[3m-(m+6)]>-6(m-5)

. A 475 kg pre-stressed concrete beam is to be raised 10.0 m in 24.0 s. How many kilowatts of power is needed for the job?

Eight people are involved in a tug-of-war. The blue team members pull the rope with the forces of 220 N, 340 N, 180 N, and 560 N. Three members of the red team pull it with the forces of 250 N, 160 N, and 420 N. With what force must the fourth person pull...

8. A torque wrench reads 25 lb ft. a. If its length is 1.0 ft, what force is being applied to the wrench? b. What is the force if the length is doubled?

A 1250 kg wrecking ball is lifted to a height of 12.7 m above its resting point. When the wrecking ball is released, it swings toward an abandoned building and makes an indentation of 43.7 cm in the wall. a. What is the potential energy of the wrecking ba...

Find the average speed of an automobile that travels 160 km in 2.0 h.

1.9415625

31.3 m/s

The specific gravity of an unknown substance is 0.80. Will it float on or sink in gasoline?