Object Y traveled 700 meters in 10 seconds. Object Z traveled 500 meters in 10 seconds. How much faster was Object Y than Object Z? (speed - distance + time)
A 2 meters per second
B 20 meters per second
C40 meters per second
D. 60 meters per second
I don’t what a link I just want the answer!

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?