The major influence on the tides is due to __________
Fill in the blank(s) with correct word
the moon
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The fact that you can see stars in the nighttime sky is evidence that
A) our atmosphere is transparent to visible light. B) light can travel in a vacuum. C) both of these D) neither of these
A particle (mass = 6.7 × 10^?27 kg, charge = 3.2 × 10^?19 C) moves along the positive x axis with a speed of 4.8 × 10^5 m/s. It enters a region of uniform electric field parallel to its motion and comes to rest after moving 2.0 m into the field. What is the magnitude of the electric field?
a. 2.0 kN/C b. 1.5 kN/C c. 1.2 kN/C d. 3.5 kN/C e. 2.4 kN/C
The position of a cart that is oscillating on a spring is given by the equation
x = (12.3 cm) cos[(1.26 s-1)t]. When t = 0.805 s, what are the (a) velocity and (b) acceleration of the cart?
The focal lengths of the objective and eyepiece in a compound microscope are 0.8 cm and 2.5 cm, respectively. The image formed by the objective is 16 cm from it and the final image is 25 cm from the eye. What is the total magnification?
A) -19.0 B) -11.0 C) -2.0 D) -100 E) -200