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3 years ago

Use dominant trait in a sentence

1 answer:

4 0

Because my dad had the dominant gene for brown hair, while my mom had the recessive gene, I now have brown hair.

Hope this helped! Good luck! :)

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PLEASE HELPPP!! 40 POINTS! A young man exerted a force of 900 newtons for 10 seconds to push his car. However, he could not get

Dmitrij [34]

No work is done because the object needs to be moved. The formula for work is Work = Force x Distance.

4 0

3 years ago

A fan that is rotating at 960 rev/s is turned off. It makes 1500 revolutions before it comes to a stop. a) What was its angular

Evgesh-ka [11]

Answer:

α = 1930.2 rad/s²

Explanation:

The angular acceleration can be found by using the third equation of motion:

$2\alpha \theta=\omega_f^2-\omega_i^2$

where,

α = angular acceleration = ?

θ = angular displacement = (1500 rev)(2π rad/1 rev) = 9424.78 rad

ωf = final angular speed = 0 rad/s

ωi = initial angular speed = (960 rev/s)(2π rad/1 rev) = 6031.87 rad/s

Therefore,

$2\alpha(9424.78\ rad) = (0\ rad/s)^2-(6031.87\ rad/s)^2\\\\\alpha = -\frac{(6031.87\ rad/s)^2}{(2)(9424.78\ rad)}$

α = - 1930.2 rad/s²

negative sign shows deceleration

5 0

3 years ago

The nucleus of the polonium isotope 214 Po (mass 214 u) is radioactive and decays by emitting an alpha particle (a helium nucleu

amid [387]

Answer:

368224.29906 m/s

Explanation:

M = Mass of Polonium nucleus = 214 u

V = Velocity of nucleus

m = Mass of Helium nucleus = 4 u

v = Velocity of alpha particle = $1.97\times 10^7\ m/s$

In this system the momentum is conserved

$MV+mv=0\\\Rightarrow MV=-mv\\\Rightarrow 214V=-4\times 1.97\times 10^7\\\Rightarrow V=\dfrac{-4\times 1.97\times 10^7}{214}\\\Rightarrow V=368224.29906\ m/s$

The recoil speed of the nucleus that remains after the decay is 368224.29906 m/s

6 0

2 years ago

Read 2 more answers

Determine the acceleration of a boat with a speed of 18 m/s for 20 seconds.

seropon [69]

Answer:

Explanation:

initial velocity, u = 0

final velocity, v = 18 m/s

time = 20 sec

acceleration, a = v - u / t

= 18 - 0 / 20

= 18 / 20

= 9 / 10

= 0.9 m/s^2

Hope this helps

plz mark as brainliest!!!!!!

5 0

2 years ago

The Drake equation calculates the number of technically advanced civilizations in the galaxy as a product of seven factors: R* f

juin [17]

The Drake equation calculates the civilization parameter as
R*fp*ne*fl*fi*fc*L = 1 x 1 x 0.1 x 1 x 1 x 1 x 100 = 10.

If each increasable factor is multipled by 10, the result will be
(1*10) x (1*10) x (0.1*10) x (1*10) x (1*10) x (1*10) x (100*10)
= 10 x 10⁷
= 10⁸

Answer: 10⁸

3 0

3 years ago