Block a has a mass 1.0 kg and block b has a mass 3.0 kg. the two blocks are connected by a very light rope of negligible mass that passes over a pulley as shown. the coefficient of kinetic friction for the blocks on the ramp is 0.33. the ramp is angled at  = 45. at time t = 0 s, block a is released with an initial speed of 6.0 m/s. what is the tension in the rope?

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths

Determine the net charge of the predominant form of arg at (a) ph 1.0, (b) ph 5.0, (c) ph 10.5, and (d) ph 13.5