4) What is the speed of a bike if it moves 50 meters in 5 seconds?
1 answer:
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Answer:
magnitude of the gravitational force is 9.04 × N
Explanation:
given data
altitude = A = 612 km = 612000 m
mass M = 11,100 kg
mass of the Earth m = 5.97 × kg
Earth average radius = 6.38 × m
to find out
magnitude of the gravitational force
solution
first we get here distance from space to centre of earth that is
distance = altitude + earth radius
distance = 612000 + 6.38 × m
distance = 6.99 × m
so now we get here magnitude of the gravitational force that is express as
magnitude of the gravitational force F = ...........1
here G is gravitational constant that is 6.67 × Nm² /kg and M is mass of space and m is mass of earth
put here all value we get
F =
F =
F = 9.04 × N
so magnitude of the gravitational force is 9.04 × N
Answer:
Explanation:
a. The amplitude is the measure of the height of the wave from the midline to the top of the wave or the midline to the bottom of the wave (called crests). The midline then divides the whole height in half. Thus, the amplitude of this wave is 9.0 cm.
b. Wavelength is measured from the highest point of one wave to the highest point of the next wave (or from the lowest point of one wave to the lowest point of the next wave, since they are the same). The wavelength of this wave then is 20.0 cm. or
c. The period, or T, of a wave is found in the equation
were f is the frequency of the wave. We were given the frequency, so we plug that in and solve for T:
so
and
T = .0200 seconds to the correct number of sig fig's (50.0 has 3 sig fig's in it)
d. The speed of the wave is found in the equation
and since we already have the frequency and we solved for the wavelength already, filling in:
and
v = 50.0(20.0) so
v = 1.00 × 10³ m/s
And there you go!