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3 years ago

Which of the following will increase stability?

Physics

1 answer:

Andreas93 [3]3 years ago

7 0

Answer:

a. lowering the center of gravity.

Explanation:

A stable body is the one that experiences a net force in the direction opposite the direction of displacement. A body that is stable has a restoring force that restores it to the original equilibrium position. Many factors helps to increase stability, and one of them is lowering the center of gravity closer to the ground. This is why race cars are closer to the ground, to give them more stability especially at high speed.

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You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball

const2013 [10]

Answer:

The building is 61.19 m tall, approximately.

Explanation:

From the parabollic movement trayectory equation,

$y=H+\frac{v_{0y}}{v_x}x-\frac{1}{2v_x^2}gx^2,$

where H is the initial height of the ball and $v_{oy}$ and $v_x$ the inital velocities in the vertical and horizontal direction, respectively; we have

$H=y-\frac{v_{0y}}{v_x}x+\frac{1}{2v_x^2}gx^2$ .

In this case, the ball landed at the coordinates $\left(x,y\right)=\left(61,0\right)$ , so

$H=0-\frac{17\sin\left(43\deg\right)}{17\cos\left(43\deg\right)}\times 61+\frac{1}{2\left(17\cos\left(43\deg\right)\right)^2}\times 9.81\times 61^2 \approx 61.19$ .

8 0

3 years ago

A spaceship is 1600 m long when it is at rest. When it is traveling at a certain constant speed its length is measured by extern

Firdavs [7]

Answer:

speed of the spaceship is 0.495251 c

Time T = 1.4982 hr

Explanation:

given data

length L1 = 1600 m

length L2 = 1390 m

to find out

speed of the spaceship and time

solution

we know here

L2 = L1 × $\sqrt{1 - V^{2} }$

so we find V by put L1 and L2

1390 = 1600 × $\sqrt{1 - V^{2} }$

V = 0.495251 c

speed of the spaceship is 0.495251 c

and

we know T1 = 1.95 hr

so we find T2

T1 = T2 $\sqrt{1 - v^{2} }$

put here V and T1 so we get T2

1.95 = T2 $\sqrt{1 - 0.495251^{2} }$

Time T = 1.4982 hr

3 0

4 years ago

An isolated conducting sphere has a 15 cm radius. One wire carries a current of 1.0000046 A into it while another wire carries a

lbvjy [14]

Answer: It would take 3.23ms

Explanation: Please see the attachments below

7 0

3 years ago

What formula could be used to find distance if you know the speed an the time

gogolik [260]

Answer: d = st

Explanation:

We know that the distance is equal to the rate (speed) times the time

d = st

8 0

3 years ago

Define a scalar. Give two examples of scalars that you have used recently

Pie

In Mathematics and Physics, scalar is a quantity or a single number that shows the measurement of a medium in magnitude only (It does not include direction as vectors do); examples of scalars are voltage, mass, temperature, speed, volume, power, energy, and time.

Two examples of scalars I have used recently are Degrees Celsius to measure the temperature of my living room and Cubic Feet to measure the volume of my mug.

4 0

4 years ago