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blsea [12.9K]
3 years ago
6

What does the addition of two vectors give you?

Physics
1 answer:
lina2011 [118]3 years ago
6 0

Answer: A resultant vector

Explanation: Addition of two vectors can not be a scalar because vectors have a magnitude and a direction. so that they are explained by means of these two chacteristics. If addition is different from zero it will give a vector.

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to advance in time the evolution of temperature of the atmosphere at any given point in the globe, models calculate the temperat
Natasha_Volkova [10]
  • The complexity of Earth is beyond the capabilities of computer simulations.
  • Numerous assumptions that must be made by computer models have a big impact on the forecasts they produce.
  • A computer model can incorporate historical climate data, but it is not possible to draw assumptions about future climates using this data in any way.
  • A computer model cannot distinguish between anthropogenic climate change and natural climatic fluctuations.
<h3>How precise are temperature forecasts made by climate models?</h3>

The forecasting of global surface temperatures is one of the most significant results of climate models.

Scientists evaluate the effectiveness of their models by contrasting observations of the Earth's climate with predictions of future temperatures and "hindcasts" of past temperatures. Then, by comparing specific climate models and the average of all models to actual warming, scientists may determine whether temperature projections are accurate.

Researchers can have more faith that models can effectively predict future changes in the same factors if they successfully simulate the climate response in the past.

To know more about climate models, visit:

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8 0
1 year ago
ojectile is launched on the Earth with a certain ini- tial velocity and moves without air resistance. Another projectile is laun
mafiozo [28]
--vertical from ground to top--
v^2 = u^2 + 2as
with v= 0, a=g, s=u^2/(-2g)
g on the moon is 1/6
u is equal, then it goes 6 times higher on the moon.

v = u + at
with v= 0, a=g, t = u/(-g)
g on the moon is 1/6
u is equal, then it takes 6 times longer on the moon.

--horizontal--
s = vt , v is equal
t on the moon is 6 time longer
it moves 6 times farer on the moon
3 0
3 years ago
A cannon ball fired horizontally from a cliff has a velocity directed at 60 degrees above horizontal when it hits the ground 3.0
Kamila [148]
Since the ball is fired horizontally, the initial y velocity is zero and the time to hit the ground is the same as if the ball was simply dropped from the cliff.  So you can solve the y position function:
-\frac{1}{2}g t^{2}  +  h_{o}=0
giving a height of 44.1m.
The given final velocity vector tells us that the initial x-directed velocity was about 17m/s.
3 0
3 years ago
Read 2 more answers
The time constant of a simple RL circuit is defined as _______. We say that R is the resistance of the circuit and L is the indu
Gennadij [26K]

Answer:

The correct answer will be "\tau =\frac{L}{R}".

Explanation:

The time it would take again for current or electricity flows throughout the circuit including its LR modules can be connected its full steady-state condition is equal to approximately 5\tau as well as five-time constants.

It would be calculated in seconds by:

⇒  \tau=\frac{L}{R}

, where

  • R seems to be the resistor function in ohms.
  • L seems to be the inductor function in Henries.
5 0
3 years ago
A child is riding a merry-go-round that has an instantaneous angular speed of 1.25 rad/s and an angular acceleration of 0.745 ra
skelet666 [1.2K]

Answer:

So the acceleration of the child will be 8.05m/sec^2

Explanation:

We have given angular speed of the child \omega =1.25rad/sec

Radius r = 4.65 m

Angular acceleration \alpha =0.745rad/sec^2

We know that linear velocity is given by v=\omega r=1.25\times 4.65=5.815m/sec

We know that radial acceleration is given by a=\frac{v^2}{r}=\frac{5.815^2}{4.65}=7.2718m/sec^2

Tangential acceleration is given by

a_t=\alpha r=0.745\times 4.65=3.464m/sec^

So total acceleration will be a=\sqrt{7.2718^2+3.464^2}=8.05m/sec^2

7 0
3 years ago
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