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3 years ago

Why am i adopted and why should i be adopted

Physics

1 answer:

Sever21 [200]3 years ago

6 0

Answer:

you are adopted because your birth parents left if you werent then you would be alone, be gratful that there are people who even care to adopt children.

Explanation:

You might be interested in

What forces are acting on your body during a bungee jump?

LiRa [457]

Answer:

The first force that the bungee jumper experiences is gravity, which pulls down on everything and makes the jumper fall. The gravitational force is almost exactly constant throughout the jump. During the bungee jumper's fall, he or she also experiences a force due to air resistance.

Explanation:

8 0

3 years ago

Read 2 more answers

A mass of a spring vibrates in simple harmonic motion at a frequency of 8.0 Hz and an amplitude of 3.9 cm. If a timer is started

oee [108]

Answer:

e = 50.27 give / s

Explanation:

The expression for simple harmonic motion is

x = A cos (wt + Ф)

in this case they give us the amplitude A = 3.9 cm and frequency f = 8.0 Hz

The angular and linФear variables are related

e = 2π d

e = 2π 8

e = 50.27 give / s

let's look for the constant fi

so let's find the time to have the maximum displacement

v = dx / dt

v = -A w sin (wt +Ф)

for the point of maximum displacement the speed is I think

0 = - sin (0 + Ф)

therefore fi = 0

Let's put together the equation of motion

x = 0.039 sin (50.27 t)

v = 0.039 50.27 sin (50.27 3)

v = 1.96 50 0.01355

v = 0.0266 m / s

8 0

3 years ago

What is the force that opposes motion and works against the downward pull? A) friction B) gravity C) weight D) acceleration

charle [14.2K]

I'm not entirely sure, but I believe it is A Friction. because gravity pulls down, weight isn't a force, and acceleration doesn't oppose motion

6 0

4 years ago

The following objects have velocity and mass as given: Object A: m=5 kg, ⃗v=−11 ^j Object B: m=6 kg, ⃗v=5^ i +8.7 ^ j Object C:

Fofino [41]

Answer:

For object A

m = 5 kg , v= -11 j

For B object

m = 6 kg , v= 5 i +8.7 j

For object C

m = 10 kg , v= -10 i

We know that

Linear momentum P= m v kg.m/s

a) A and C

Momentum in y direction

Py=- 5 x 11 j= - 55 j kg.m/s

Momentum in x direction

Px=- 10 x 10 j= - 100 i kg.m/s

b) B and C

Momentum in y direction

Py=6 x 8.7 j= 52.2 j kg.m/s

Momentum in x direction

Px=( 6 x 5 - 10 x 10 ) i = - 70 i kg.m/s

c) A ,B and C

By using data of a and b

Momentum in y direction

Py= 6 x 8.7 - 5 x 11 j= -2.8 j kg.m/s

Momentum in x direction

Px= 6 x 5 -10 x 10 i = -70 i kg.m/s

4 0

3 years ago

A bus initially moving at 20 m/s with an acceleration of -4m/s² for 5

Alborosie

Answer:

50m; 0m/s.

Explanation:

Given the following data;

Initial velocity = 20m/s

Acceleration, a = - 4m/s²

Time, t = 5secs

To find the displacement, we would use the second equation of motion;

$S = ut + \frac {1}{2}at^{2}$

Substituting into the equation, we have;

$S =20*5 + \frac{1}{2}*(-4)*5^{2}$

$S =100 + (-2)*25$

$S =100 - 50$

S = 50m

Next, to find the final velocity, we would use the third equation of motion;

$V^{2} = U^{2} + 2aS$

Where;

V represents the final velocity measured in meter per seconds.

U represents the initial velocity measured in meter per seconds.

a represents acceleration measured in meters per seconds square.

<em>Substituting into the equation, we have;</em>

$V^{2} = 20^{2} + 2(-4)*50$

$V^{2} = 400 - 400$

$V^{2} = 0$

V = 0m/s

<em>Therefore, the displacement of the bus is 50m and its final velocity is 0m/s.</em>

5 0

3 years ago