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The attractive electrostatic force between the point charges 5.72×10-6 and has a magnitude of 0.910 when the separation between the charges is 4.42. Find the sign and magnitude of the charge.
A gun is fired and a 50-g bullet is accelerated to a muzzle speed of 100 m/s. If the lenght of the ugn barrel is .90 m, what is the magnitued of the accelerating force?
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minut
A 110- aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to - 196. The cylinder is immediately placed in an insulated cup containing 90.0 of water at 15.0. What is t
You're carrying a 3.2-m-long, 25 pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How
A skier is accelerating down a 30.0degrees hill at 1.80m/s^2 What is the vertical component of her acceleration?
How does homeostasis fundamentally relate to biology?
A massless rod of length 1m has a 2 kg mass attached to one end and a 3 kg mass attached to the other. The system rotates about a fixed axis perpendicular to the rod that passes through the rod 30
What is hydrophobic interaction between the protein and ligand?
After exercise, which blood vessels have highest concentration level of bicarbonate ions in plasma?
A car can decelerate at -3.40 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at 14° uphill? Assume the same
A high-powered microscope that produces an image from scattered secondary electrons is the?
Why would a hooked bill and sharp talons help a bird?
When a suicide victim was found, the coroner was unable to remove the drug vial clutched in his hand. Explain the reason for this. If the victim had been discovered three days later, would the coroner
A 4.60--long, 480 steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 67.0 construction worker stands at the far end of t
A rotating cylinder about 24 km in length and 7.0 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it will experience the same
Describe the causative organism of rubella
A hockey puck moving along the +x axis at 0.44 m/s collides into another puck that is at rest. The pucks have equal mass. The first puck is deflected 37 below the +x axis and moves off at 0.35 m/s.
Do you believe that innate factors have more of an effect on motivation than learned factors? Why or why not?
Suppose a small child rolls off a bed that is 0.40 m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 2.0 mm. If the floor is carpeted, this stopping d
If Wayne Gretzky shoots the puck at a speed of 90 km/h from the top of the offensive face-off circle 15.0m from the net, how long will it take to reach the net?
A canoe has a velocity of 0.54 m/s southeast relative to the earth. The canoe is on a river that is flowing at 0.52 m/s east relative to the earth. Find the magnitude of the velocity vec{v}_{rm c/r}
Although only a small amount of nutrients are absorbed, precise water absorption is an important function of the ?
Two particles are fixed to an x axis: particle 1 of charge q1 = +1.8e-8 C at x = 20 cm and particle 2 of charge q2 = -3.00q1 at x = 70 cm. At what coordinate on the axis is the net electric field pr
As they approach shore, however, the water depth decreases and the waves slow down. This can result in an increase of amplitude to as much as 37 m or more.)