1. calculate the speed of a wave that travels 10 cm in 4 seconds? 2. if a wave is moving with the speed of 10 cm/s, how far does it travel in 1.5 seconds?

3. what is the wavelength of a wave that has a speed of 40 cm/sand a frequency of 4 Hz?

4. what is the velocity of a wave that have a wavelength of 2 cm in if we can see him 25 Hz?

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors