Speed = distance / time = 55 / 0.75 = 73.3 miles per hour.

**Answer:**

at d the charge will be 3q and at 3d it will be 9q

**Explanation:**

for V=Vp-V2d

V=KQ/d=K*6q/2d=3kq/d for potential to 2d at 6q be zero the Vp will equal 3kq/d; hence at d, Q=3q and at 3d, Q=9q

Answer: The second force applied to the doorknob

Explanation:

The formulae for torque is simple the product of the applied force and the perpendicular distance.

The greater the perpendicular force, the greater the torque assuming a constant value of force.

Applying the force at the doorknob gives for a greater distance between the force and the turning point compared to applying the force at the midpoint of the door ( which is at a shorter distance)

**Explanation:**

Displacement is the straight line distance from the starting position to the final position.

Person X walks halfway around circle. So her displacement is 100 m.

Person Y walks 3/4 of the way around. So his displacement is 50√2 m ≈ 70.7 m.

Person Z walks completely around the circle, so their displacement is 0 m.

Therefore:

Z < Y < X

**Answer:**

**<u>: WHY DIDN'T THE POD DOCK LIKE IT WAS SUPPOSED TO DO?</u>****<u> </u>**

**<u>ANSWER</u>****<u>;</u>**

**The force exerted by the thrusters caused the pod to change direction.**

**WHAT NEW THEORIES DO YOU HAVE?**

** **** ****A****N****S****W****E****R****;**

**This pod moved differently because it was more massive.**

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