1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gavmur [86]
2 years ago
9

a) CALCULATE the acceleration of a 300,000 kg jumbo jet, just before takeoff when the thrust of each of its 4 engines is 36,000

N. If the jumbo jet take off speed is 184 mph, b) CONVERT 184 mph to m/s and c) DETERMINE how many seconds would it take for the plane to reach this speed? Show your work and round your answer to the nearest hundredth
Physics
1 answer:
Zanzabum2 years ago
5 0

Answer:

a) 0.12m/s^2

b)0.0511m/s

c)0.4258 seconds

Explanation:

a)

acceleration=  \frac{36000}{300000}

= 0.12m/s^2

b) 184m/h

184/3600 = 0.0511m/s

c)

time =  \frac{0.0511}{0.12}

Time = 0.4258 seconds

You might be interested in
An echocardiogram uses 4.4 MHz ultrasound to measure blood flow in the aorta. The blood is moving away from the probe at 1.4 m/s
Alinara [238K]

Answer:

\Delta f=17959.2\ Hz

Explanation:

Given:

  • original frequency of  the wave, f=4.4\times 10^6\ Hz
  • velocity of the blood stream moving away, v=1.4\ m.s^{-1}

<u>Doppler shift is given as:</u>

\frac{f}{f_o} =\frac{s+v_s}{s-v_o}

where:

s = velocity of ultrasound in blood = 1570\ m.s^{-1}

v_s= velocity of sound  source towards the observer

v_o= velocity of the observer away from the source

\frac{4.4\times 10^6}{f_o} =\frac{1570+0}{1570-1.4}

f_o=4396076.43\ Hz

Therefore the shift in frequency:

\Delta f=f-f_o

\Delta f=3923.56\ Hz

7 0
3 years ago
A 30kg uniform solid cylinder has a radius of 0.18m. if the cylinder accelerates at 0.023 rad/s^2 as it rotates about an axis th
Nuetrik [128]

Answer:

0.011 N-m

Explanation:

Given that

The mass of a solid cylinder, m = 30 kg

The radius of the cylinder, r = 0.18 m

The acceleration of the cylinder, \alpha =0.023\ rad/s^2

It rotates about an axis through its center. We need to find the torque acting on the cylinder. The formula for the torque is given by :

\tau=I\alpha

Where

I is the moment of inertia of the cylinder,

For cylinder,

I=\dfrac{mr^2}{2}

So,

\tau=\dfrac{mr^2\alpha }{2}\\\\\tau=\dfrac{30\times (0.18)^2\times 0.023 }{2}\\\\\tau=0.011\ N-m

So, the required torque on the cylinder is 0.011 N-m.

7 0
2 years ago
X-component of length 5 and a y-component of length 4. What is the angle of the vector?
yKpoI14uk [10]
The direction of the vector with respect to the x-axis
is the angle whose tangent is      (4/5) .

             Arctan(4/5) = 38.7°  counterclockwise from the x-axis.
4 0
3 years ago
Which of the circuit diagrams shown in Figure 21-1A is a parallel circuit?
Thepotemich [5.8K]
I and II only it’s has multiple paths for the electricity to flow
4 0
2 years ago
A bionic man running at 6.5 m/sec , east is acceleration at a uniform rate of 1.5 m/sec^2 east over a displacement of 100.0 m ea
tangare [24]
Given:
u = 6.5 m/s, initial velocity 
a = 1.5 m/s², acceleration
s = 100.0 m, displacement

Let v =  the velocity attained after the 100 m displacement.
Use the formula
v² = u² + 2as
v² = (6.5 m/s)² + 2*(1.5 m/s²)*(100 m) = 342.25 (m/s)²
v = 18.5 m/s

Answer: 18.5 m/s
5 0
3 years ago
Other questions:
  • What is the wavelength of the oceans wave
    11·1 answer
  • An ultrasound unit is being used to measure a patient’s heartbeat by combining the emitted 2.0 MHz signal with the sound waves r
    14·1 answer
  • Two buckets of mass m1 = 18.7 kg and m2 = 13.9 kg are attached to the ends of a massless rope, which passes over a pulley with a
    9·1 answer
  • How do you calculate energie
    6·2 answers
  • Two critical requirements must be met before light elements, like hydrogen or helium, will fuse and form heavier elements. the t
    15·1 answer
  • In each cycle of its operation or refrigerator removes 17 J of heat from the inside of the refrigerator and releases 40 J of hea
    5·1 answer
  • What are objects that are less dense than water
    11·1 answer
  • Hi, I have a question if I calculate the average force that must be exerted on a 0.145 kg baseball for me to give it an accelera
    10·1 answer
  • This is stupid but my brain isn't working right now so im counting on someone else
    6·1 answer
  • What is the only medium (not provided) that light would travel through even faster than air?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!