Answer:
Hey man, are you who I think you are? ... you used your student number on your account.... anyways im in your class :) guess who I am for free points. so the formula for period is Period=Wavelength/Velocity, so P=.85/velocity, to find velocity would be using the formula speed=distance/time, so the velocity is 2000/9.8 which is around 204.0816327.... so back to period formula, P=.85m/204.08 which gives a period of .004165. But im not entire sure so you have to check that on your own. (gl guessing who I am. hehe)
Explanation:
Answer:
1.86 cm
Explanation:
The center of gravity of the combined object x = m₁x₁ + m₂x₂ + m₃x₃/m₁ + m₂ + m₃ where m₁ = mass of sphere on left end of rod = 0.700 kg, x₁ = distance of center of mass of sphere from left end of combined object = radius of sphere = 8.00 cm, m₂ = mass of rod = 0.300 kg, x₂ = distance of center of mass of rod from left end of combined object = diameter of sphere on left end + length of rod/2 = 16.00 cm + 40 cm/2 = 16.00 cm + 20 cm = 36 cm, m₃ = mass of sphere on right end of rod = 0.580 kg, x₃ = distance of center of mass of sphere from left end of combined object = length of rod + diameter of first sphere + radius of sphere = 40 cm + 16 cm + 6.00 cm = 62 cm
x = (m₁x₁ + m₂x₂ + m₃x₃)/m₁ + m₂ + m₃
Substituting the values of the variables into the equation, we have
x = 0.700 kg × 8.00 cm + 0.300 kg × 36 cm + 0.580 kg × 62 cm/(0.700 kg + 0.300 kg + 0.580 kg)
x = 5.6 kg cm + 10.8 kg cm + 35.96 kg cm/1.580 kg
x = 52.36 kgcm/1.580 kg
x = 33.14 cm
Since the center of the rod is at x' = (40 cm + 16.00 cm + 12.00 cm)/2 = 70.00 cm/2 = 35 cm
The distance between the center of the rod and the center of gravity is x' - x = 35 cm - 33.14 cm = 1.86 cm
So, the center of gravity is 1.86 cm away from the center of the rod and closer to the 0.700 kg sphere.
Speed can be shown on a graph of position versus time, and acceleration can be shown on a graph of speed versus time.
CORRECT ANSWER:
by using radar from spacecraft that were sent to orbit Venus
STEP-BY-STEP EXPLANATION:
A spacecraft is a device or mechanism designed to fly out into space. A type of automated satellite, spacecraft is used for a variety of purposes including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and human and equipment transportation
