Answer:
The force of friction acts in the direction opposite to the direction of motion. If friction would have been applied to the skier it would have resulted in a lower velocity and less kinetic energy.
Explanation:
Answer:
Volume of each grain of sand:

radius of the spherical grain is given,

The grains are made up of silicon dioxide.
The density is equal to 
Then, the mass of each grain is given by:

Answer:
option D
Explanation:
five
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Answer:
<em>Toasties are British in origin and were usually made in ovens. They were the same as a grilled cheese but the bread was not buttered. Some Brits would make them in a pan in the oven, too, which is even closer to the stove-top grilled cheese.</em>
Answer:
1.
2.
Explanation:
Given that
f₁= 20 Hz
f₂= 20 KHz
C= 305 m/s
For open pie organ :
<u>Shortest length :</u><u>
</u>
<u>Longest length :
</u>
