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zysi [14]
3 years ago
8

Factors that influence Wellness

Physics
1 answer:
ANEK [815]3 years ago
4 0

Answer:

Help, Fine, and Better.

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2. Four metal mugs with lids each contain the same volume of hot water at the same temperature. The mugs are made from the same
olga_2 [115]

Answer:

D. the mug painted dull black

4 0
1 year ago
A ball is dropped from rest from the top of a cliff that is 24 m high. From ground level, a second ball is thrown straight upwar
sesenic [268]

Answer:

6.0 m below the top of the cliff

Explanation:

We can find the velocity at which the ball dropped from the cliff reaches the ground by using the SUVAT equation

v^2-u^2 = 2gd

where

u = 0 (it starts from rest)

g = 9.8 m/s^2 (acceleration of gravity, we assume downward as positive direction)

h = 24 m is the distance covered

Solving for h,

v=\sqrt{2gh}=\sqrt{2(9.8)(24)}=21.7 m/s

So the ball thrown upward is launched with this initial velocity:

u = 21.7 m/s

From now on, we take instead upward as positive direction.

The vertical position of the ball dropped from the cliff at time t is

y_1 = h - \frac{1}{2}gt^2

While the vertical position of the ball thrown upward is

y_2 = ut - \frac{1}{2}gt^2

The two balls meet when

y_1 = y_2\\h-\frac{1}{2}gt^2 = ut - \frac{1}{2}gt^2 \\h = ut \rightarrow t = \frac{h}{u}=\frac{24}{21.7}=1.11 s

So the two balls meet after 1.11 s, when the position of the ball dropped from the cliff is

y_1 = h -\frac{1}{2}gt^2 = 24-\frac{1}{2}(9.8)(1.11)^2=18.0 m

So the distance below the top of the cliff is

d=24.0 - 18.0 = 6.0 m

4 0
3 years ago
You run to your girlfriend's house and announce that you were running at a rate of 15 miles per hour. She knows this is not true
Sunny_sXe [5.5K]

Answer:how long it took you to get there and the distance between your house and her house

Explanation:

8 0
2 years ago
I need help with this
TEA [102]

Answer:

___

Explanation:

3 0
3 years ago
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Two pieces of cotton have ____ charges and they ___ each other
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Like . . . repel
unlike . . . attract
positive . . . repel
negative . . . repel
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2 years ago
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