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
Kitty [74]
2 years ago
11

On an aircraft carrier, a jet can be catapulted from 0 to 250 km/h in 2.05 s

Physics
2 answers:
Komok [63]2 years ago
7 0

Answer:

mass = 27750 kg

Explanation:

acceleration: (change in velocity)÷(time)

acceleration = (final velocity - initial velocity) ÷ time taken

Given that:

<u><em>Final velocity is 250 km/h and initial is 0 km/h and time is 2.05s</em></u>

  • change 2.05s to hrs. that is 0.0005694444 hrs

acceleration = [(250 - 0) ÷ 0.0005694444]

acceleration = 439024.4 km/h²

conversion to m/s² :

acceleration = 439024.4 m/s²

--------------------------------------------------------------------

Force = mass(kg) * acceleration(m/s²)

we know that force is  9.40×10^5 N

9.40×10^5 = mass(kg) *   33.875 (m/s²)

mass =  9.40×10^5 ÷  33.875

mass = 27750 kg

sdas [7]2 years ago
6 0

Answer: The mass of the jet is 26,225

Explanation: Convert 250km to m =250,000

1 hour = 3600

Velocity = 69.4 m/s

a= change in v/change in t

69.4/2 = 34.7

9.10×105 / 34.7 = 26,225 KG

Yw and pls mark me as brainiest

You might be interested in
Bacteria vary somewhat in size, but a diameter of 2.9 μm is not unusual.
Sedbober [7]

Answer:

a) 6.4 x 10^-12 cm^3

b) 17 x 10^-6 mm^2

Explanation

a). The shape is assumed to be spherical The volume = volume of a sphere = \frac{4}{3} \pi r^3

3

4

πr

3

V = \frac{4}{3}*3.142* 1.15^3

3

4

∗3.142∗1.15

3

= 6.3715 μm^3

1 μm^3 = 10^-12 cm^3

6.3715 μm^3 = 6.3715 x 10^-12 cm^3

==> 6.4 x 10^-12 cm^3

8 0
2 years ago
Read 2 more answers
A transformer has a primary coil with 375 turns of wire and a secondary coil with 1,875 turns. An AC voltage source connected ac
Sonbull [250]

Answer:

The rms voltage (in V) measured across the secondary coil is 459.62 V

Explanation:

Given;

number of turns in the primary coil, Np = 375 turns

number of turns in the secondary coil, Ns = 1875 turns

peak voltage across the primary coil, Ep = 130 V

peak voltage across the secondary coil, Es = ?

\frac{N_P}{N_s} = \frac{E_p}{E_s} \\\\E_s = \frac{N_sE_p}{N_p} \\\\E_s = \frac{1875*130}{375} \\\\E_s = 650 \ V

The rms voltage (in V) measured across the secondary coil is calculated as;

V_{rms} = \frac{V_0}{\sqrt{2} } = \frac{E_s}{\sqrt{2} } \\\\V_{rms} = \frac{650}{\sqrt{2} } = 459.62 \ V

Therefore, the rms voltage (in V) measured across the secondary coil is 459.62 V

7 0
3 years ago
Suzie skydiver, who weighs 500 n, reaches terminal velocity of 90 km/h. the air resistance on suzie is then
masha68 [24]
<span>Weight of the skydiver m = 500 N
 Terminal velocity V = 90 km/h
 Here the weight of the person acts as the force, so based on the Newton's third law the applied is the force what we but in the opposite direction making the resistance. So the air resistance exerted on Suzie will be her weight that is 500N</span>
7 0
3 years ago
Read 2 more answers
A solar eclipse that occurs when the new moon is too far from earth to completely cover the sun can be either a partial solar ec
Sonja [21]
1) <span>A solar eclipse that occurs when the new moon is too far from earth to completely cover the sun can be either a partial solar eclipse or an -->
Answer: ANULAR ECLIPSE. Since the moon is too far, it will cover only a part of the sun, and only the external ring of the moon will be visible; this is called anular eclipse.

2) </span><span>anyone looking from the night side of earth can, in principle, see a -->
Answer: LUNAR ECLIPSE. If the moon is the right position, and the Earth's shadow covers partially or totally the moon, then a lunar eclipse occurs.

3) </span><span>during some lunar eclipses, the moon's appearance changes only slightly, because it passes only through the part of earth's shadow called the -->
Answer: PENUMBRA. 

4) </span><span>a ... can occur only when the moon is new and has an angular size larger than the sun in the sky -->
Answer: TOTAL SOLAR ECLIPSE. When the moon is new, it means it is between the sun and the Earth, and its dark side faces the Earth. If the moon's angular size is also larger than the sun angular size, than it will completely cover the sun, and a total solar eclipse occurs.

5) </span><span>a partial lunar eclipse begins when the moon first touches earth's --> 
Answer: SHADOW. The Earth's shadow will start to cover the moon, and partial lunar eclipse will start.

6) </span><span> a point at which the moon crosses earth's orbital plane is called a(n)  --> 
Answer: NODE. Eclipses occur only when the Moon is at or close to a node, otherwise sun, earth and moon are not "aligned".</span>
5 0
3 years ago
Which would be most reliable source for information about the toxity of an industrial chemical
amid [387]
For example, a trade secret may<span> be a confidential device, pattern, </span>information<span>, or </span>chemical<span> make-up.</span>Chemical industry<span> trade secrets are generally formulas, process data, or a "specific </span>chemical<span> identity." The latter is the type of trade secret </span>information<span> referred to in the Hazard Communication Standard. The term includes</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Ask Your Teacher A trough is 16 ft long and its ends have the shape of isosceles triangles that are 2 ft across at the top and h
    12·1 answer
  • Is a lipid known as an enzyme
    5·1 answer
  • Which of the following statements is false? A. Two or more atoms combine chemically to form a molecule. B. Two or more different
    8·1 answer
  • A student is trying to calculate the density of a ball. She already knows the mass, but she needs to determine the volume as wel
    6·1 answer
  • Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which v
    6·2 answers
  • A torque of 12 N*m is applied to a solid uniform disk of radius 0.50 m. If the disk accelerates at 2.6 rad/s^2 what is the mass
    12·1 answer
  • Help me with this PLEASEEEE!
    5·2 answers
  • 4) A force of 500 N acts on an area of 0.05m2. Find the pressure in Pascal.
    13·1 answer
  • An airplane is flying at a speed of 200 m/s in level flight at an altitude of 800 m. A package is to be dropped from the airplan
    14·1 answer
  • The bold type sa matanda​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!