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
Mkey [24]
3 years ago
15

An airport has runways only 198 m long. a small plane must reach a ground speed of 39 m/s before it can become airborne. what av

erage acceleration must the plane's engines provide if it is to take off safely from its airport? answer in units of m/s 2 .
Physics
1 answer:
Anarel [89]3 years ago
8 0
S: 198 m 
v=39 m/s 
u=0
t=? 
a=?

v²=u²+2as
(39)²=(0)²+2(a)(198) 
1521=396a
1521/396=a
3.84 m/s^2 = a 

Hope I helped :) 
You might be interested in
A 60-kg swimmer suddenly dives horizontally from a 150-kg raft with a speed of 1.5 m/s. The raft is initially at rest. What is t
scZoUnD [109]
I’m almost positive it 60 m/s
7 0
3 years ago
An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature, this element is a very
Grace [21]

Answer:

12 neutrons

Explanation:

The number of protons also shows the atomic number. Therefore the element in question is Krypton (Kr), which also is a noble gas.

Neutrons = Mass number - protons - electrons

Here neutrons = 84 - 36 - 36 = 12

5 0
3 years ago
A truck heading east has an initial velocity of 6/ms. It accelerates at 2/ms2 for 12 seconds. What distance does the truck trave
frez [133]

Answer:

216m

Explanation:

As we know S=ut+1/2at^2

S=6×12+1/2×2×12×12

=72+144

=216 m

4 0
3 years ago
How to solve question #2?
Vera_Pavlovna [14]
2a for example the first one,2sec. You know that every second it moves 3metres further. So 2x3=6 but you start at 0.50m so 6+0.50=6.5
5 0
3 years ago
Select the correct answer. Brian is repairing an old alarm clock. He needs to replace a device that converts the electric energy
Stella [2.4K]

it shouldbe a buzzer

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the biggest barrier to the use of renewable energy in the United States?
    5·2 answers
  • Leftover planetesimals that formed in the region of the solar system now occupied by the jovian planets are called
    7·1 answer
  • Ezra is pulling a sled, filled with snow, by pulling on a rope attached to the sled. The rope makes an angle θ with respect to t
    15·1 answer
  • A car is moving eastward and speeding up. the momentum of the car is
    15·1 answer
  • 0.075 L - 9 mL = _____________ L?
    5·1 answer
  • If the population runs out of food after 6 hours, what would most likely happen to the graph line between 8 and 10 hours?
    12·2 answers
  • Would a rougher or smoother object absorb thermal energy faster? Why? Give an example.
    6·1 answer
  • NO LINKS! What are the definitions of initial horizontal velocity and initial vertical velocity? Please help! This like is my 20
    10·1 answer
  • An astronaut brings a cube from the earth to the moon. What is true about the inertial mass and weight of the cube?
    10·1 answer
  • The world record for pole vaulting is 6.15 m. If the pole vaulter’s gravitational potential is 4942 J, what is his mass?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!