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3 years ago

What is the acceleration of a rocket ship that takes 5.0 seconds to increase its speed from 1240 m/s to 1300 m/s?

Physics

2 answers:

8090 [49]3 years ago

5 0

Answer:

$\boxed{\text{\sf \Large 12 m/s^2 $}}$

Explanation:

Use acceleration formula

$\displaystyle \text{$ \sf Acceleration=\frac{Change \ in\ velocity}{Time \ taken} $}$

$\displaystyle a=\frac{1300-1240}{5.0} =12$

LUCKY_DIMON [66]3 years ago

4 0

Answer:

12 m/s²

Explanation:

Acceleration = change in velocity / time

a = (1300-1240) / 5

a = 60 / 6

a = 12

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An element consists of two isotopes. The abundance of one isotope is 60.40% and its atomic mass is 68.9257 u. The atomic mass of

amm1812

Answer:

69.7173 u

Explanation:

The abundance of the first isotope is =60.40%

So the abundance of the second isotope =100%-60.40%=39.6%

Atomic mass of first isotope = 68.9257

So the average atomic mass of the first isotope =68.9257×0.6040=41.6311 u

Atomic mass of the second isotope =70.9249 u

So average atomic mass of second isotope =70.9249×0.396=28.086

Now the average atomic mass =41.6311+28.086=69.7173 u

7 0

3 years ago

Read 2 more answers

4. Mrs. Parker was married to her husband for

Leokris [45]

<h3>Answer:</h3><h3>B ) Nuclear family</h3>

Explanation:

The answer is B because Nuclear family mean a family with two kids and Mrs. Parker have two kids

5 0

3 years ago

A cyclist overcomes a resistive force of 30 N in order to cycle 30 m. It takes her 6 seconds to cycle this distance. Calculate t

zmey [24]

Answer:

Power = 15[W]

Explanation:

This problem can be solved using the work definition.

Work is equal to the product of the force by the distance, for this problem we have:

F = force = 30 [N]

d = distance = 30 [m]

w = work = F * d = 30*30 = 900 [J], "units in joules"

The power is defined as the work done in an interval of time.

P = w / t

where:

t = time [s]

therefore

P = w / t

P = 900 / 6

P = 150 [W] "units in watts"

6 0

3 years ago

I need help with these questions :<br>(see image )

dem82 [27]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>_____________________________________</h2><h3>DATA:</h3>

Height of Aeroplane = 500 meters

Speed of Aeroplane = 200 m/s

Acceleration due to gravity = g = 10m/s^2

time of package to reach the ground = t = ?

Horizontal distance = d = ?

<h2>_____________________________________</h2><h3>SOLUTION:</h3>

When the bomb is dropped, it will have an initial horizontal velocity which is equal to the speed of the plane as the plane is just moving in horizontal direction. So the bomb fall and will travel forward.

Initial horizontal velocity is given by,

$V_{ix} = 200 ms{-1}$

Initial vertical velocity is given by,

$V_{iy} = 0m/s$

By the second equation of motion under gravity,

$H = V_{iy}t + \frac{1}{2}gt^2\\\\500 = (0)t + \frac{1}{2}x10xt^2 \\\\500 = 0 + 5t^2\\\\t^2 = \frac{500}{5}\\\\t^2 = 100\\\\t = 10 seconds$

<u>For horizontal distance(d)</u>:

Horizontal distance has no acceleration thus d is given by

d = vt

d = 200x10

d = 2000 meters

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>

4 0

3 years ago

Focusing on irelevant information can negatively impact the ability to reason and problem solve effectively.

My name is Ann [436]

Answer:

true

Explanation:

3 0

3 years ago