An object is moving across a surface, but it does not gain or lose speed. Which best describes the object’s force? a. The net force is positive.
b. The net force is zero.
c. The positive force is greater than the negative force.
d. The negative force is greater than the positive force.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.

Why is the use of carbon-14 limited