Acceleration = (change in speed) / (time for the change)
= (76.8 mi/hr) / (7.62 sec)
= 10.08 mile/hour-second
That quantity is a perfectly good acceleration, it has the right
dimensions etc, but the question asks for it in units of meter/s²,
so I have to convert it to the equivalent in meter/s².
(10.8 mile / hr-sec) x (1,609 meter/mile) x (1 hr / 3600 sec)
= (10.8 · 1,609 · 1) / (3,600) meter / second²
= 4.83 meter / second² if you round all the numbers as you go
or
4.51 meter/sec² if you use a calculator and don't round anything
The sudden change in pressure when water vapor is released causes cavities inside the popcorn to vibrate and produce sound, the researchers suggest—much like a champagne bottle's pop when uncorked. The scientists also discovered the mechanism for the kernel's acrobatic hop into the air. Hope this helps! ~ Autumn :)
Answer:
13 m/s
Explanation:
Given:
Δy = 8.2 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: v
v² = v₀² + 2aΔy
v² = (0 m/s)² + 2 (9.8 m/s²) (8.2 m)
v = 12.7 m/s
Rounded to two significant figures, the speed is 13 m/s.
<span>The answer Fossil fuels aren’t widely available, but pure hydrogen is. Fossil fuels are non-renewable. Hydrogen is not a fuel. It is a way of storing or transporting energy. Distribution and infrastructure needs to be refurbished to cope with hydrogen, which can metals by making them brittle.
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Answer:
it is good so far
i just passed my math test
Explanation:
