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2 years ago

7

Which statements describe why organisms are classified? Check all that apply.

1 answer:

shutvik [7]2 years ago

3 0

Answer:

what are the options for me

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: A 70 kg man and a 12 kg sled are on the frictionless ice of a frozen lake, 25 m apart but connected by a rope of negligible ma

e-lub [12.9K]

Answer:

$x_1 = 3.74m$

Explanation:

given,

mass of man = 70 kg

mass of sled = 12 kg

F = m a_s

$a_s = \dfrac{F}{m}$

$a_s = \dfrac{8.2}{12}$

$a_s = 0.68\ m/s^2$

$F = m a_m$

$a_m = \dfrac{F}{m}$

$a_m = \dfrac{8.2}{70}$

$a_m = 0.12\ m/s^2$

$x_1+x_2 = 25$

$\dfrac{1}{2}a_ct^2+ \dfrac{1}{2}a_mt^2 = 25$

$(a_c+a_m)t^2=50$

$(0.12+0.68)t^2=50$

$t = \sqrt{\dfrac{50}{0.8}}$

t = 7.90 s

$x_1 = \dfrac{1}{2}a_ct^2$

$x_1 = 0.5\times 0.12 \times 7.90^2$

$x_1 = 3.74m$

5 0

3 years ago

Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up

kirza4 [7]

Answer:

I believe the answer is b

Explanation:

5 0

3 years ago

Roseanne heated a solution in a beaker as part of a laboratory experiment on energy transfer. After a while, she noticed the liq

sveta [45]

I think it is convection hope I could help.

6 0

3 years ago

Which of the following statements is true of electromagnetic waves but NOT mechanical waves.

Neko [114]

Answer:

a

Explanation:

what the heck is a medium

4 0

2 years ago

Mali loves to make herself dizzy. She spins in place 7 times before falling down right where she was standing. Find her distance

Mila [183]

The answer is 0 bc she didint move
Explanation:

8 0

3 years ago

Read 2 more answers