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
HACTEHA [7]
3 years ago
6

PLEASE HELP what is the velocity of an airplane that travels 1,200 km in 2.2 hours​

Physics
1 answer:
MA_775_DIABLO [31]3 years ago
7 0
90.9 is the velocity of an airplane
You might be interested in
a lorry travels 3600m on a test track accelerating constantly at 3m/s squared from standstill. what is the final velocity (3 sig
suter [353]

The final velocity of the truck is found as 146.969 m/s.

Explanation:

As it is stated that the lorry was in standstill position before travelling a distance or covering a distance of 3600 m, the initial velocity is considered as zero. Then, it is stated that the lorry travels with constant acceleration. So we can use the equations of motion to determine the final velocity of the lorry when it reaches 3600 m distance.

Thus, a initial velocity (u) = 0, acceleration a = 3 m/s² and the displacement s is 3600 m. The third equation of motion should be used to determine the final velocity as below.

2as =v^{2} - u^{2} \\\\v^{2} = 2as + u^{2}

Then, the final velocity will be

v^{2} = 2 * 3 * 3600 + 0 = 21600\\ \\v=\sqrt{21600}=146.969 m/s

Thus,  the final velocity of the truck is found as 146.969 m/s.

8 0
3 years ago
Which of the following chemical equations demonstrates that atoms are conserved during a chemical reaction?
mr_godi [17]

Answer:

2Mg + O2 → 2MgO

Explanation:

this is what your looking for

8 0
3 years ago
How much work is done when a 100 N force moves a block 59 m?
xxTIMURxx [149]

Answer:

5900J

Explanation:

Work=Forse*Distance

work = J, Jewls

100*59=5900

Hop this helps and can u think about brainlist

i put a picture on how to find these answers, if u got any more questions im here

3 0
3 years ago
A fixed system of charges exerts a force of magnitude 22 N on a 4.0 C charge. The 4.0 C charge is replaced with a 8.0 C charge.
Karo-lina-s [1.5K]

Answer:

44 N

Explanation:

The electrostatic forces between two charges is given by:

F=k\frac{q_1 q_2}{r^2}

where

k is the Coulomb's constant

q1 and q2 are the two charges

r is their separation

We notice that the force is directly proportional to the charges.

In this problem, initially we have a force of

F = 22 N

on a q2 = 4.0 C, exerted by a charge q1.

If the charge is doubled,

q2 = 8.0 C

This means that the force will also double, so it will be

F=22 N \cdot 2 = 44 N

3 0
3 years ago
Which is an si metric unit of measurement that is used to record the heat transfer of a solution in a classroom investigation?
kumpel [21]
The SI unit for heat energy is joule
4 0
3 years ago
Other questions:
  • What is the difference between a total solar eclipse, an annular solar eclipse, and a partial solar eclipse.
    13·2 answers
  • A ______________________ is a simple machine that consists of an inclined plane wrapped around a central cylinder.
    8·2 answers
  • Which measurement of mass would have the shortest de Broglie wavelength at a given speed? A. 10 kg B. 20 kg C. 30 kg D. 40 kg
    7·1 answer
  • Until a train is a safe distance from the station, it must travel at 5 m/s. Once ti
    15·1 answer
  • While traveling on a horizontal road at speed vi, a driver sees a large rabbit ahead and slams on the brakes. The wheels lock an
    11·1 answer
  • Where does crystallization take place?
    13·1 answer
  • Which statement best describes energy and matter in a closed system?
    9·1 answer
  • 5CaO4
    11·1 answer
  • If the needle in the galvanometer is going up, what can you conclude about the motion of the magnet in the diagram?
    9·2 answers
  • What is the measurement of the venier calipers?<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!