Determine the average net force exerted
A 75 kg human cannonball is shot out of an 20-meter-long-cannon.if the human cannonball spends 1.23 seconds in the cannon, determine the average net force exerted on him in the barrel of the cannon.
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A 2300 kg truck moves 30 m/s for 7.5 seconds and then coasts to a stop in 72 seconds. What is the trucks acceleration and deceleration?
Two tugboats pull a disabled supertanker. Each tug exerts constant force of 1.20 multiplied by 106 N, one 19° west of north and the other 19° east of north, as they pull the tanker 0.69 km toward the west. What is the total work they do o
a 900 kg drag race car accelerates from rest to 103 km/hr in 0.862 seconds. What average force is exerted on the car?
Describe the advantages/disadvantage to supercoiling of DNA 2. Describe how DNA structure gives rise to the semiconservative model of replication.
The solubility of sodium nitrate in water is .8 g/ml at 0 degrees Celsius. The solubility increases to 1.9 g/ml at 180 degrees Celsius. Explain why this happens?
A damped mass-spring system oscillates at 205 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 4.7 cm and the energy of the oscillating system is then 47 J.
You have a mass of 64 kg. How fast (in mph) would you have to run to have the same momentum as an 18-wheeler (m = 28,000 kg) rolling along at 2 mph?
A spelunker is surveying a care. He follows a passage 100 meters straight east, then 50 meters on a direction 30 degree west of north, then 150 meters at 45 degree west south. After a fourth unknown displacement he finds himself back where he sta
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