Question 12 of 13 A wave has a wavelength of 1.5 m and a frequency of 6.0 Hz. What is the
speed of the wave?
A. 0.3 m/s
B. 9.0 m/s
C. 4.0 m/s
O D. 7.5 m/s

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j