A car starts from rest and travels for 5.0 s with a uni- form acceleration of 11.5 m/s2. The driver then

applies the brakes, causing a uniform acceleration of
22.0 m/s2. If the brakes are applied for 3.0 s, (a) how
fast is the car going at the end of the braking period,
and (b) how far has the car gone?

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87