Acceleration=9.81m/s^2
initial velocity=0m/s
time=.28s
We have to find final velocity.
The equation we use is
Final velocity=initial velocity+acceleration x time
Vf=0m/s+(9.81m/s^2)(.28s)
Vf=2.7468m/s
We would round this to:
Vf (final velocity)=2.7m/s
Mira is much bigger than the Sun.
Only very massive stars will go through a supernova stage, causing the outer layer to explode away and the core to collapse in on itself, becoming very dense.
<u>Answer:</u>
area of point has more pressure.
<u>Explanation:</u>
formula's : pressure = force ÷ area
1st pressure,
200 ÷ 0.2 = 1000 Pa
2nd pressure,
200 ÷ 0.004 = 50000 Pa
<h3>Therefore the pressure on the area of the point is more.</h3>
Answer:
the only thing thats confusing me is no ?
Explanation:
please explain thank you :)
Answer:
The heat flow through the slab in a day is 432,000 J
Explanation:
Q = kA∆T/t
Q is rate of heat flow
k is thermal conductivity = 0.1 J/s/m.°C
A is area = 100 cm^2 = 100 cm^2 × (1 m/100 cm)^2 = 0.01 m^2
∆T is temperature difference = 100 °C
t is thickness = 2 cm = 2/100 = 0.02 m
Q = 0.1×0.01×100/0.02 = 5 J/s
In a day, there are 24×60×60 = 86,400 s
Heat flow in a day = 5 J/s × 86,400 s = 432,000 J
