A vector of magnitude 20 is added to a vector of magnitude 25. The magnitude of this sum. might be:. A. zero. B. 3. C. 12. D. 47. E. 50

O determine whether the strength of people's self-esteem is related to their income levels, researchers would most likely make use of

Cohort studies allow the investigator to examine multiple outcomes and multiple exposures. Consider the following three exposures: smoking, low vitamin D intake, and severe cold weather.

What rhymes with leave

In an arcade video game, a spot is programmed to move across the screen according to x = 9.00t - 0.750t³, where x is distance in centimeters measured from the left edge of the screen and t is time in seconds.

Students repeat the experiment but replace block X and block Y with block W and block Z, as shown in Figure 3. Block W and block Z have identical mass M.

Compare the friction force on the cart when it is rolling along the blacktop parking lot to the friction force on the cart when it is inside the grocery store (assume the flooring is smooth vinyl tile).

Which of the following objects has the most kinetic energy? a car going 60 miles per hour a spring that is compressed a rock sitting on the edge of a cliff a bicycle going 10 miles per hour

Which type of environment results from an equal amount of solute and solvent in and out of the cell? A. hypertonic environment B. isotonic environment C. hypotonic environment D.

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. Long after contact is made with the battery (a) the voltage across the capacitor is A) equal to the battery's terminal voltage.