An object with projectile motion constantly changes direction. TRUE FALSE

A pilot can withstand an acceleration of up to 9g, which is about 88 m/s2, before blacking out. What is the acceleration experie

Harman [31]

Answer:

Explanation:

Given that, the pilot can withstand 9g acceleration which is approximately 88m/s².

Now, the pilot is traveling in a circle of radius

r = 3340 m

And the speed is

v = 495 m/s

Then, acceleration?

The acceleration of a circular motion can be determine using centripetal acceleration

a = v² / r

a = 495² / 3340

a = 73.36 m/s².

Since the acceleration is less that the acceleration the pilot can withstand, then, I think the pilot makes the turn without blacking out and successfully

4 0

3 years ago

A bicycle racer inflates their tires to 7.1 atm on a warm autumn afternoon when temperatures reached 27 °C. By morning the tempe

natulia [17]

Answer:

The required pressure is 6.4866 atm.

Explanation:

The given data : -

In the afternoon.

Initial pressure of tire ( p₁ ) = 7 atm = 7 * 101.325 Kpa = 709.275 Kpa

Initial temperature ( T₁ ) = 27°C = (27 + 273) K = 300 K

In the morning .

Final temperature ( T₂ ) = 5°C = ( 5 + 273 ) K = 278 K

Given that volume remains constant.

To find final pressure ( p₂ ).

Applying the ideal gas equation.

p * v = m * R * T

$\frac{p}{T} = constant$

$\frac{p_{1} }{T_{1} } = \frac{p_{2} }{T_{2} }$

$p_{2} = \frac{T_{2} }{T_{1} } *p_{1}$

$p_{2} = \frac{278}{300} * 709.275$ = 657.2615 Kpa = 6.486 atm

8 0

2 years ago

your initial speed is zero. if you increased your speed by 4 m/s after only 2 seconds and continue to accelerate at the same rat

alexandr402 [8]

Answer:

20 m/ s

Explanation:

change in velocity = 4m/ s

$acceleration = \frac{rate \: of \: change \: of \: velocity}{time}$

$acc = \frac{4}{2} \\ = 2$

initial velocity = 0m/ s

let velocity after 10s be v

$2 = \frac{v - 0}{10}$

cross multiplying

$20 = v$

so the velocity after 10s will be 20m/s

6 0

3 years ago

Building Restoration, Inc. (BRI), enters into a contract to refurbish an old train depot for Casual Dining, Inc., to open as Eat

makkiz [27]

Answer:

Option C

Explanation:

Building Restoration, Inc. (BRI) entered into a contact to refurbish an old train depot for Casual Dining which means it will renovate or redecorate the old train depot for casual dining

In case of refurbishing it will just renovate the old building and will not demolish that building

∴ If BRI completes most of the work promised in the contract, its performance will be reformation

4 0

3 years ago

1. Wind A. Definition B. What Heat Transfer Causes c. Types

mart [117]

Answer:

B . a heat transfer caused

3 0

3 years ago