The large envelope of comets that encircle the Sun beyond the outer planets is called the ________ cloud.
Fill in the blank(s) with the appropriate word(s).
Answer: oort
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Water molecules consist of one oxygen atom and two hydrogen atoms. In these covalent bonds, the electrons are pulled towards the oxygen side of the covalent bond, making one side of the molecule slightly negative and the other side of the molecule slightly positive. What is this characteristic of water called?
a. polarity b. ionic c. hydrophilic d. hydrophobic e. cohesion
When a curve is properly banked a passenger in a car traveling on it at the designed speed does not feel a lateral force
Indicate whether the statement is true or false
A high-voltage powerline operates at 500,000 V rms and carries an rms current of 500 A. If the resistance of the cable is 0.050 ?/km, what is the resistive power loss in 200 km of the powerline?
a. 250 kW b. 500 kW c. 1 megawatt d. 2.5 megawatts e. 250 megawatts
Briefly explain the evidence behind planetlike masses orbiting pulsars
What will be an ideal response?