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Wittaler [7]
3 years ago
8

Pls help with number one

Mathematics
1 answer:
LenaWriter [7]3 years ago
6 0
A) You can drop hammer and a feather, both will reach ground at the same time ( it was actually done in Apollo mission)

b) i. Yes, it is similar to weightlessness experienced by astronauts

ii. The phenomenon of "weightlessness" occurs when there is no force of support on your body. When your body is effectively in "free fall" in roller coaster, accelerating downward at the acceleration of gravity, then you are not being supported.
Just like astronauts in space feel no force of support that we on earth feel due to gravity.
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A bag contains: 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, and 2 yellow marbles. A marble will be drawn fr
sesenic [268]

Step-by-step explanation:

green = 3/20

black = 4/20 = 1/5

3 0
3 years ago
Part A: The sum of the measures of UWZ is 90, so UWV and UWZ are_________ angles.
kiruha [24]

Answer: A. UWV and UWZ are complementary angles.  

 B.They do not overlap, so UWV and VWX are supplementary  angles

Step-by-step explanation:

Complementary angles add up to 90.

Supplementary angles do not overlap.

4 0
2 years ago
Adding and subtracting fractions
kakasveta [241]

Answer:

Step-by-step explanation:

add the top of one and the bottom of the other then the top of the other and the bottom of one

3 0
3 years ago
- Last week Shelley earned $60.00 in tips waitressing. This week she earned $72.00.
castortr0y [4]

Answer: 20%

Step-by-step explanation:

Rule of 3, let's put the money on the left and the percentage on the right of the chart.

\frac{60.00}{72.00}=\frac{100}{x}

x=\frac{72*100}{60} \\x=120

Calculate the difference.

120-100=20

5 0
3 years ago
Read 2 more answers
A bicycle rider increases his speed from 5 m/s to 15 m/s in 10 seconds
valentina_108 [34]
To find the acceleration of the bicycle rider, we are going to use the acceleration formula: a= \frac{v_{f}-v_{i}}{t}
where
a is the acceleration 
v_{i} is the initial speed 
v_{f} is the final speed 
t is the time 

We know from our problem that increases his speed from 5 m/s to 15 m/s in 10 seconds, so his initial speed is 5 m/s and his final speed is 15 m/s; therefore, v_{i}=5, v_{f}=15, andt=10. Lets replace those values in our formula:
a= \frac{v_{f}-v_{i}}{t}
a= \frac{15-5}{10}
a= \frac{10}{10}
a=1

We can conclude that the acceleration of the bicycle rider 1 m/s^2
4 0
3 years ago
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