La frecuencia de una onda es 60Hz y su velocidad, 30 m/s. Calcula su longitud de onda

A student is standing 8 m from a roaring truck engine that is measured at 100 dB. The student moves 4 m closer to the engine. What is the measured loudness at the new distance?

Which of these statements best describes a similarity between asteroids and comets? A) Both consist of gases B) Both are dwarf planets C) Both liquefy due to heat D) Both orbit around the sun

The air inside a balloon exerts a force of 1.5 N on an area of 0.5m2. What is the pressure inside the balloon

Performing CPR on an infant is similar to performing CPR on an adult except that for an infant you would?

Two 8.0 Ω lightbulbs are connected in a 12 V series circuit. What is the power of both glowing bulbs?

Consider a circuit connected in parallel with three resistors, each providing a resistance of 6, 8, and 4, respectively. Using the formula for total resistance in a parallel circuit, what is the total resistance of the circuit? a. 180 b. 1/240 c.

A swing has a period of 10 seconds. What is its frequency?

You inflate a front tires on your car to 22 psi. Later, you measure your blood pressure, obtaining a reading of 127/61, the readingbeing in mm Hg.

Which substance is made of molecules? a. water b. table salt c. aluminum foil d. pure gold necklace

How does using a ramp to load boxes into a truck make work easier? A. Using the ramp increases the amount of force needed to move the boxes, but the boxes must be moved over a shorter distance. B.