Answer:
As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction.
Answer:
i would describe an ocean current like a pull of the water
Explanation:
water
D. Speed and direction, this is because velocity is a vector quantity so has a magnitude and direction assigned to it because it is the rate of change of displacement.
Answer:
D) 1000 m/s
Explanation:

You have the wavelength and frequency, you just need to solve for velocity. You can do this by multiplying each side of the equation by frequency.
Hope this helps.
Yes, that's why the atom is neutral. A proton carries a positive charge,
and an electron carries a negative charge. When their numbers are
equal, the atom has no 'net' charge, and it's a 'neutral' atom.