Aspeed-time graph shows that a car moves at 10 m/s for 10 s. the car’s speed then steadily decreases until it comes to a stop at 30 s. which of the following describes the slope of the speed-time graph from 10 s to 30 s?
a. linear, horizontal
b. curved, upward
c. linear, sloping downward
d. linear, sloping upward

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

Bahan yang digunakan mencegah terjadinya polarisasi pada batu baterai a.larutan h2so4b.mncl2 dan serbuk karbonc.pbso4d.nh4cl