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Two point particles, one with charge -8 x 10-9 C and the other with charge -2 x 10-9 C, are separated by 0.04 m. The electric field in N/C midway between them is:
a. 9 x 109
b. 13,500
c. 135,000
d. 22.5
e. 36 x 10-9
A golf ball, hit from the tee, travel 325 m in a direction 25 degrees south of the east axis. What are the east and north components of its displacement?
You are 1.5 m tall and you are standing 2.0 m away from a flat mirror. The Top of the mirror is at the same level as the top of your head. How large is the mirror
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. The two particles are initially held in place and then released.
1 a service station charges a battery using a current of 6.7 a for 5.0 h. how much charge passes through the battery?2
200 grams of iron at 100 degrees C. is dropped into aninsulated beaker containing 500 grams of water at 20 degrees C. What is the final temperature of iron and water
A paratrooper is initially falling downward at a speed of 33.0 m/s before her parachute opens. How far does the paratrooper fall during this time interval
An object with a mass of 23 kg lies on a horizontal frictionless surface. What is the normal force on the object in Newtons
A child looks at his reflection in a spherical Christmas tree ornament 8cm in diameter, and sees his image reduced by half. How long is his face from the ornament.
The moment the other student passes you, you start accelerating at 2.67 m/s2, After what distance will you catch up with your classmate
A pinada, practically in a shape of a slender thin rod of length mass 4.0 kg is hanging from the tree branch after being hinged at one end. Estimate how high the pinada will swing
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
A microscope with a tube length of 200 mm achieves a total magnification of 400x times with a 20x times objective and a 20x times eyepiece. How far is the sample from the objective lens
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