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
bonufazy [111]
3 years ago
15

How long does it take for an airplane to change its velocity from 140 m/s to 180 m/s if its

Physics
1 answer:
kobusy [5.1K]3 years ago
4 0

Answer:

Explanation:

a = 4ms⁻²,  Vf = 180 m/s  &  Vi = 140m/s

a = \frac{Vf-Vi}{t}

4 = \frac{180-140}{t}

t = 40/4

t = 10sec

To Measure Distance Use third Equation of Motion:

2aS = Vf²-Vi²

S = \frac{180*180 - 140*140}{2(4)}

S = 12800/8 = 1600m

You might be interested in
A forces of 5 N accelerates an object. The object’s mass is 50 g. What is the acceleration of the object? (Formula: F=ma)
Harrizon [31]

Answer:

100 m / s^

F =ma from this divided F and ma by m to get acceleration

a = F / m

a = ?

F = 5 N

m = 50 g = 0. 0 5 kg ; if 1 kg = 1000g how much kg of 50 g by criss cross method we get 0.05 kg

so; 5N / 0. 05 kg = 5kg m / s^ / 0.05 kg

kg cancel by kg

the result is 100 m/ s^

7 0
2 years ago
The early experiments with static charges were done by:
Naddika [18.5K]

Answer:

<em>t</em><em>h</em><em>e</em><em> </em><em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>i</em><em>s</em><em> </em><em>b</em><em> </em><em>.</em><em>G</em><em>i</em><em>l</em><em>b</em><em>e</em><em>r</em><em>t</em><em> </em>

Explanation:

<em>h</em><em>o</em><em>p</em><em>e</em><em> </em><em>i</em><em>t</em><em> </em><em>h</em><em>e</em><em>l</em><em>p</em><em>s</em><em> </em><em>!</em>

5 0
3 years ago
A DC current of 60 mA can cause paralysis of the body's respiratory muscles and hence interfere with breathing, but only 15 mA (
Liula [17]

To solve this problem it is necessary to apply the concepts related to Ohm's Law to find the voltage in the case of direct current. While for the Alternate current we use the concept of RMS voltage.

PART A) In the case of DC we have to,

V=IR

Where,

I = Current

R = Resistance

Where the current is 60mA y the resistance is 1000\Omega , then the potential would be

V=(60mA)(1100\Omega)

V = 66V

In the case of DC we have that the current and the RMS voltage is,

I_{rms} = 15 mA

R = 1100 \Omega

V_{rms} = 16.5 V

The potential in AC then is,

V_o = \sqrt{2}V_{rms}

V_o = \sqrt{2}(16.5)

V_o = 23.3345 V

3 0
3 years ago
Please can you tell me any current topics in psychology for a project​
Nesterboy [21]
Any mental health disorders- mental health is a huge discussion right now, and it’s mental health awareness month! perfect timing for your project :-)
3 0
3 years ago
Read 2 more answers
Which model of earth's interior does this image show? if u answer i'll give u a thanks
lana66690 [7]
It shows the inner core, core, mantle, and crust
4 0
4 years ago
Other questions:
  • What measurements or observations tells you that a car is accelerating
    10·2 answers
  • ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the co
    13·1 answer
  • Scientists have learned about the structure of Earth's interior by
    15·2 answers
  • This element has four valance electrons and four energy levels.
    9·1 answer
  • What is electric force ​
    10·1 answer
  • B
    7·1 answer
  • What is a frequency of a ships whistle if the velocity of sound is 340 meters/ second and the wave length is 1.70?
    5·1 answer
  • 1. The spring in a trampoline has been stretched 0.25m and has a spring
    13·1 answer
  • What supports a white dwarf against the crush of gravity?
    12·1 answer
  • Find the magnitude of the sum of these two vectors: B 101 m 60.0 ° 85.0 m A​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!