A projectile was launched from the ground at an unknown angle. The initial vertical component of the velocity was 2.0 m/s. If the projectile's displacement from the time it was launched until the time it hit the ground was 4.0 m, what was its initial horizontal velocity?

Which of the following is an example of motion in two dimensions?

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

Explain what happens at the saturation point when adding salt to water at room temperature.