Answer:
2403 m/s^2
Explanation:
The gravitational potential energy of the froghopper when it reaches the maximum height is equal to the kinetic energy at the moment of takeoff:
where
m = 12.7 mg is the mass of the froghopper
g = 9.8 m/s^2 is the acceleration due to gravity
h = 49.8 cm = 0.498 m is the maximum height reached
v = ? is the take-off velocity
Solving for v, we find
We now that the froghopper accelerates from
u = 0 m/s
to
v = 3.1 m/s
in a distance of
d = 2.00 mm = 0.002 m
So we can find the acceleration by using the following SUVAT equation:
Solving for a,
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Airida [17]
Answer:
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Answer : Infrared rays have a shorter wavelength than radio waves.
Explanation :
The wavelength of Infrared rays is 700 nm – 1 mm
The wavelength of X- rays is 0.01 nm – 10 nm
The wavelength of UV rays is 10 nm – 400 nm
The wavelength of radio waves is 1 meter – 100,000 km
The wavelength of gamma rays is less than 0.01 nm
So, from the above data it is clear that the wavelength of the infrared rays have a wavelength shorter than the radio waves.
Hence, the correct option is (C) " radio waves ".
Answer
given,
discharge rate from pipe = 1000 gallons/minutes
now,
flow rate in cubic meters per second
1 gallon = 0.00378541 m³
1 min = 60 s
Q =
Q = 0.063 m³/s
flow rate in liters per minute
1 gallon = 3.78541 L
Q =
Q = 3785.41 m³/min
flow rate in cubic feet per second
1 gallon = 0.133681 ft³
1 min = 60 s
Q =
Q = 2.23 ft³/s