A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1180 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?

Which statement best describes what Kendall can do? She can measure the volume and mass of the marble, the volume and mass of the water, and the volume and mass of the graduated cylinder.

What is spectroscopy? a) the use of ccds to capture light more ef? ciently than with photographic? lm b) an analysis of the way in which atoms absorb and emit light c) a study of the geometry of rainbows d) a method to freeze atmospheric turbulence

You are given 6 identical resistors, and allowed to combine them in any possible configuration to produce different equivalent resistances.

Most paper does not reflect light very well because its surface is somewhat rough. T or F

The acceleration of a particle is given by ax (t) = - (2.00 m/s2) + (2.70 m/s3) t. (a) find the initial velocity v0x, such that the particle will have the same x-coordinate at t = 3.80 s as it had at t = 0.

Which branch of science includes the laws of matter and energy?

A very famous motorcyclist plans to jump across a canyon 3.5 kilometers wide. he plans to use a 30 degree ramp and leaves it at 196 m/s. Will he make it? show all calculations to prove your answer

What captures energvy from sunlight during photosynthesis

The scientific theories developed by copernicus galileo and newton resulted in

How could you find out which wire is broken in a cable?