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erica [24]
3 years ago
13

Plane a travels at 900km/h and plane b travels at 250/5.which plane travels faster

Physics
1 answer:
vesna_86 [32]3 years ago
5 0

Explanation:

We have,

Speed of plane a is 900 km/h

Plane b is moving at a rate of \dfrac{250\ km}{5\ h}=50\ km/h

It is required to find which plane is faster. To find which plane is faster, we need to compare their speeds.

Speed of a plane a is 900 km/h and that of plane b is 50 km/h. So, we can say that plane a is moving faster.

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With what speed must m1 rotate in a circle of radius r if m2 is to remain hanging at rest?
11Alexandr11 [23.1K]
Velocity =2 pie*r/t
distance = 2 (pie) r
accelaretion =distance/t2
f=m*v2/r
v=square root of Fr/m

5 0
4 years ago
Some springs are wound with the wire under torsion, so that they are naturally tightly compressed. The plot of extension vs. app
ANEK [815]

The "unstretched length" is shorter than the actual unloaded length because the load applied to the material caused the extension of the material thereby increasing its length.

<h3>Hooke's law</h3>

Hooke's law states that the force applied to an elastic material is directly proportional to the extension of the elastic material.

F = kx

where;

  • F is the applied force
  • k is the spring constant
  • x is the extension

Thus, we can conclude that, the "unstretched length" is shorter than the actual unloaded length because the load applied to the material caused extension of the material thereby increasing the length of the material.

Learn more about Hooke's law here: brainly.com/question/2648431

6 0
2 years ago
A 230.-mL sample of a 0.240 M solution is left on a hot plate overnight; the following morning, the solution is 1.75 M. What vol
Gwar [14]

Answer:

The volume of water evaporated is 199mL

Explanation:

Concentration is calculated with the following formula

C=\frac{n}{V}

where n is the number of moles of solute and V is the volume of the solution (in this case is the same as the solvent volume) in liters.

So we isolate the variable n to know the amount of moles, using the volume given in liters

230mL=0.23L

n=C*V=0.240 M*0.23L=0.055 mol

Now, we isolate the variable V to know the new volume with the new concentration given.

V=\frac{n}{C} =0.055mol/1.75M=0.031L=31mL

Finally, the volume of water evaporated is the difference between initial and final volume.

V_{ev}= V_{i} -V_{f} =230mL-31mL=199mL

4 0
3 years ago
By using kepler's 3rd law we find that ___________.
tangare [24]

Answer;

By using kepler's 3rd law we find that;

-A year on Earth is shorter than a year on Saturn.

Explanation;

-Kepler’s 3rd law states that the square of a planet’s orbital period is proportional to the cube of its average distance from the Sun (semi-major axis), which tells us that more distant planets move more slowly in their orbits.

-In other words, if you square the 'year' of each planet, and divide it by the cube of its distance to the Sun, you get the same number, for all planets. The law captures the relationship between the distance of planets from the Sun, and their orbital periods.

8 0
3 years ago
Read 2 more answers
I’ll give points plz and brainliest I know the result I just need the process.
shusha [124]
Shiddd ion even know but can you like my comment?
7 0
3 years ago
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