a ball is thrown downward with an initial speed of 7 m/s. the ball's velocity after 3 seconds is m/s (g= -9.8m/s^{2}

Which type of basaltic lava flow has a fairly smooth

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?