Write out completely (every nuclide must be represented as ax a-z, with z as the left subscript of x, not shown here) the following decay processes: (i) b+ decay of carbon-11 (ii) b decay of sodium-24 a decay of cesium-133 (iv) a decay of lead-210 (v) y decay of strontium-94 (vi) a decay of radon-220 (vii) ßdecay of gold-198 (viii) y decay of potassium-40

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n