If the power of the objective lens is 2D and eye lens is 20D for a telescope. What is the distance between 2 lenses the telescope at normal adjustment? A 0.055cm
B 0.55cm
C 5.5cm
D 55cm

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.