How does frequency affect wavelength?

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?

Why is no-till farming more sustainable than many traditional methods of farming

Acar tire rotates at a constant angular velocity of 3.5 rotations during a time interval of 0.75 seconds. what is the angular speed of the tire? in advance for any !