Acar turns into a driveway that slopes upward at a 9.0 ∘ angle. the car is moving at 7.5 m/s. if the driver lets the car coast, how far along the slope will the car roll before being instantaneously at rest and then starting to roll back? i've other people solve this with this ungodly equation with sin, but i don't know where the variables in the equation come to solve i used: i used vf=vi+at to solve for my time. vf=0 m/s vi=7.5m/s a=-9.81 m/s^2 t=t after solving for t, i got 0.7645 seconds. with that number, i used d=vit+.5at^2 to solve for d vi=7.5 m/s t=0.7645 s a=-9.81m/s^2 d=d after solving for d, i got 2.867 is my mistake in my method or something easily fixed in my math?
Answers: 1
Physics, 22.06.2019 03:50, cyberdac01
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Physics, 22.06.2019 16:30, safiyyahrahman6907
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Answers: 1
Physics, 22.06.2019 16:30, skiddymark3ox93za
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Acar turns into a driveway that slopes upward at a 9.0 ∘ angle. the car is moving at 7.5 m/s. if the...
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