3 years ago

What caused the slope to change around 1905 and 1906?

Physics

2 answers:

sesenic [268]3 years ago

8 0

Hydro then electric or solar power

goblinko [34]3 years ago

3 0

Answer:

Building the Canadian hydroelectric plant reduced the rate of erosion after 1906.

Explanation:

PLATO ANSWER

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A vector is any quantity that has no units of measurement

djyliett [7]

False. Velocity is a vector and is measured in m/s (in SI, anyway).

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3 years ago

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As a stunt for movie two cars are to collide with each other head on. The two cars are initially 125 apart. Car A is heading str

Tema [17]

Answer:

3.39724 seconds

23.0824792352 m, 101.917520765 m

13.58896 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

The equation of motion will be

$s=ut+\dfrac{1}{2}at^2\\\Rightarrow 125=30\times t+\dfrac{1}{2}\times 4\times t^2\\\Rightarrow 2t^2+30t-125=0\ m$

$t=\frac{5\left(\sqrt{19}-3\right)}{2},\:t=-\frac{5\left(3+\sqrt{19}\right)}{2}\\\Rightarrow t=3.39724, -18.39724$

The time at which the cars collide is 3.39724 seconds

$s=ut+\dfrac{1}{2}at^2\\\Rightarrow s=0\times t+\dfrac{1}{2}\times 4\times 3.39724^2\\\Rightarrow s=23.0824792352\ m$

Car B traveled 23.0824792352 m and Car A traveled 125-23.0824792352 = 101.917520765 m

$v=u+at\\\Rightarrow v=0+4\times 3.39724\\\Rightarrow v=13.58896\ m/s$

The speed of car B is 13.58896 m/s

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3 years ago

The stemplot below shows the heights (in inches) of students in a class.

masha68 [24]

B.b 70 would be the answer

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4 years ago

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Which law says that the induced voltage is directly proportional to the magnetic flux?

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law of electromagnetic induction hope this helps

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Margaret is the new director of research at a well-known pharmaceutical company. She has been asked to design a set of research

Serjik [45]

Answer:

Double blind experiment

Explanation:

It is an experimental method , which helps to avoid any impartiality and any error due to biasing .

The experiment give rise to very accurate results , which is very important for any experiment .

Hence , the new director Margaret , need to design a set of double - blind experiments.

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