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Jobisdone [24]
4 years ago
13

SO what exactly is beyond our atmosphere, like space, has anybody actually been in space ????? or are we just making hopeless fa

ntasies
Physics
1 answer:
Mkey [24]4 years ago
8 0

Answer:

The universe, milky Way even black holes. Yes the first people who went to the moon put a flag to represent America. We are not making hopeless fantasies.

Explanation:

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Not so fast! If a force of 2500 N is used over
Masteriza [31]

Answer:

B 1500N

Explanation:

The acceleration of the car - at least the average one, but that will do, is a= \frac{\Delta v}{\Delta t} = \frac 53 ms^{-2} = 1.66 ms^{-2}

We know the acceleration, we know the force, let's drop them in Newton second law.

F= ma = 2500= m \frac53 \rightarrow m=500\times 3 N = 1500N

3 0
3 years ago
PLEASE ANSWER<br> List: What are the three types of joints in the human body?
horsena [70]
1.Synovial joint
2. pivot joint
3. Hinge joint
4 0
4 years ago
A boat is moving at the rate of 15.0 meters per second. It’s speed is then decreased uniformly to 3.0 meters per second. It take
yuradex [85]

Answer:

-3 m/s²

Explanation:

The formula for deceleration is given as the change in speed over a period of time

Given that,

Initial speed = 15 m/s

Final speed = 3 m/s

change in speed= 3-15= -12 m/s

Time taken= 4 sec

Deceleration = -12/4 = -3 m/s²

7 0
3 years ago
A World-class sprinter can reach a top speed of about 11.5 m/s in the first 18.0 m of a race. What is the average acceleration o
irina [24]

Answer

a = 3.674 m / s ^ 2


t = 3.13 s

Using the kinematic equations for the movement we have:


h(t) = P_{0} + Vot + \frac{1}{2}at ^ 2 (1)


V_{f} = V_{0} + at (2)


Where:


P_{0} = initial position


V_{0}} = initial velocity


a = acceleration


t = time in seconds


V_{f} = final speed


We know:


P_{0}=0


V_{0}= 0

h = 18 m


V_{f} = 11.5\frac{m}{s}

  So:

 From (2) we have that: t =\frac{V_{f}}{a}


t =\frac{11.5}{a}

From (1) we have to:


h (t) = 0.5at ^ 2\\h = 18 = 0.5at ^ 2

Then we clear "a" to find the acceleration.


\frac{36}{t^2} = a\\a = \frac{36}{(\frac{11.5}{a})^2} \\\\a =\frac{11.5^2}{36}\\a = 3.674 m / s ^2

Then, the time it takes to reach this speed is:


t =\frac{V_{f}}{a}\\t =\frac{11.5}{3.674}\\t = 3.13 s

4 0
4 years ago
Read 2 more answers
If element x has 10 electrons, how many of them will be in the second energy level?​
Sati [7]

the second level will have 8 electrons.

6 0
3 years ago
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