Lift is the upward force on the wing acting perpendicular to the relative wind and perpendicular to the aircraft's lateral axis. Lift is required to counteract the aircraft's weight.

Explanation:

7 0

2 years ago

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What is the most destructive storm on earth

SIZIF [17.4K]

Hurricanes i believe

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3 years ago

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A baseball is thrown a velocity of 20 m/s. It takes the 20 kg ball 10 seconds 5 points

liberstina [14]

Answer: 40 Newton

Explanation:

Mass of baseball = 20 kg

Velocity of baseball = 20 m/s.

Time taken for throwing = 10 seconds

Since acceleration is the rate of change of velocity per unit time

i.e Acceleration = velocity / time taken

Acceleration = (20 m/s / 10seconds)

Acceleration = 2m/s^2

Now, force required to throw the baseball is a product of mass and acceleration

i.e Force = Mass x acceleration

Force = 20 kg x 2m/s^2

Force = 40Newton

Thus, 40 newton of force is required to throw baseball to reach the plate

7 0

3 years ago

The half-life of uranium-235 is 713 million years. Suppose a rock originally had 26 grams of uranium-235. A geologist had the ro

BlackZzzverrR [31]

Answer:

<h3>2139 Million years</h3>

Explanation:

Half life of a material is the time required for the material to decay into half of initial amount.

initially there is 26 grams of uranium-235, and the final amount is 3.25 gram

ratio between initial and final amount = $\frac{26}{3.25} = \frac{1}{8}$

now it is clear that the material have halved 3 times from initial condition

number of half lives passed = 3

number of half lives passed can also be found using the equation

no of half lives = $log_{2} \frac{R_{0} }{R}$

where $R_{0}$ is the initial amount of material and R is the final amount

∵ Number of half lives = $log_{2} \frac{26 }{3.25}$

= 3

So, age of rock = half-life X number of half-lives passed

=713000000 X 3

= 2139000000

=2139 Million Years

7 0

3 years ago