Using planck’s constant as h = 6.63 e-34 j*s, what is the wavelength of a proton with a speed of 5.00 e6 m/s? the mass of a proton is 1.66 e-27 kg. remember to identify your data, show your work, and report the answer using the correct number of significant digits and units.

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .