Which would require a greater force - accelerating a 10g mass at 5ms-2 or a 20g mass at 2ms-2?

An electronic device can be modeled as a resistor that consumes an average of about 0.940 W of electrical power and operates on 3.80 V. What would be the power consumed by the resistor if it was operated on 3.50 V? a. 1.11 W b. 0.798 W c. 0.866 W d.

Un tren parte de la ciudad A, a las 8 h. con una velocidad de 50 km/h, para llegar a la ciudad B a las 10 h. Allí permanece durante media hora y reanuda la marcha a 80 km/h hasta que llega a la ciudad C una hora más tarde.

Which of the following statements are true? a. Positively charged objects attract other positively charged objects. b. Negatively charged objects attract other negatively charged objects. c.

A 650 * 10-4 F capacitor stores 24 * 10-3 of charge. What is the potential difference between the plates? a. 0.0016 V b. 0.089 V c. 0.37 V d. 2.7 V

True or False: Friction makes energy vanish. Explain your answer!

All light waves move through a vacuum with a constant speed. True or False

A simple pendulum has a period of 1.0 s. If you take this pendulum to Mars where the acceleration of gravity is 3.8 m/s2, what will the period of the pendulum be

If f (x) = 27+1, what is f/x) when x = 3? 1

Approximately how much of Earth's water is freshwater? 1 % 3 % 97 % 50 %

How radio wave carry information?