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
Vesna [10]
3 years ago
15

An airplane is traveling due east with a velocity of 7.5 × 102 kilometers/hour. There is a tailwind of 30 kilometers/hour. What

is the value of the resultant velocity of the airplane?
Physics
2 answers:
Verizon [17]3 years ago
5 0

Answer:

7.5\times 10^{2} \dotplus 30 = 7.8 \times 10^{2} km h^{-1}

Explanation:

The air plane is traveling towards East. The tail wind is the wind which is in the same direction as that of the plane's velocity direction. That's why the net velocity or the resultant velocty is  the sum of the velocity of the plane and the tail wind velocity.

Delvig [45]3 years ago
4 0
A tailwind means you add thed velocity of the tailwind to the velovity of the plane (no need for any vectors etc. so you just need (7.5x 102 ) +30 then convert it so it like one of the answers (btw - none of the answers is exactly correct - you need to round to get it) thats what you need to do to get the question
You might be interested in
Two objects form a closed system. One object, which is at 400 K, absorbs 25.0 kJ of heat from the other object,which is at 500 K
Damm [24]

Explanation:

The given data is as follows.

       T_{1} = 400 K,     T_{2} = 500 K,  

\Delta Q = 25 kJ = 25000 J   (as 1 kJ = 1000 J)

Now, we will calculate the change in entropy as follows.

            \Delta S = \frac{\Delta Q}{\Delta T}

Putting the given values into the above formula as follows.

           \Delta S = \frac{\Delta Q}{\Delta T}

                      = \frac{25000 J}{(500 K - 400 K)}      

                      = 250 J/K

Hence, we can conclude that change in entropy is 250 J/K.

4 0
3 years ago
7.
jeka94

الملك - الإتاوات - المحاكم - المجلس الملكي - القانون الروماني

5 0
3 years ago
A measurement of a change<br> in distance over time
aleksandrvk [35]

Explanation:

<h2>Speed is the rate of change of distance with time.</h2>
7 0
3 years ago
Two cars are traveling around identical circular racetracks. Car A travels at a constant speed of 20 m/s. Car B starts at rest a
Tomtit [17]

Answer:

b. it has the same centripetal acceleration as car A.

Explanation:

According to the question, the data provided is as follows

Constant speed of car A = 20 m/s

Constant tangential acceleration until its speed is 40 m/s

Based on the above information, the true statement is the same centripetal acceleration as car A because

As we know that

Centripetal acceleration is

= \frac{V^2}{r}

where,

V^2 = velocity

r = radius of the path

Now if both car A and car B moving in the same or identical circular path having the same velocity so in this case there is the same centripetal acceleration for that particular time

hence, the second option is correct

3 0
4 years ago
7. A car travels a certain distance with a speed of
goblinko [34]
Let distance be x.

Time in going, t 1 = x/50

Time in coming, t 2 = x/40

Total time T = x/40 +x/50 = 9x/200

Average speed = total distance/ total time

=( x+x)/(9x/200)= 2x ×200/9x = 400/9 = 44.44 km/h
5 0
3 years ago
Other questions:
  • Describe the difference in shape of two ice pieces
    7·1 answer
  • A circular loop of flexible iron wire has an initial circumference of 170 cm , but its circumference is decreasing at a constant
    8·2 answers
  • What acceleration is produced when a 12-N force is exerted on a 3-kg object?
    6·1 answer
  • Scientists have been able to estimate the age of our solar system by dating _____
    11·2 answers
  • A cylinder with radius R spins around its axis with an angular speed ω. On its inner surface, there lies a small block; the coef
    12·1 answer
  • Rod AB has a diameter of 200mm and rod BC has a diameter of 150mm. Find the required temperature increase to close the gap at C.
    10·1 answer
  • Which vector has an x-component with a length of 4?
    6·1 answer
  • A water balloon launcher uses an elastic band with a spring constant of 115 N/m. To use the launcher, you stretch the band back
    10·2 answers
  • HELP PLS !!! <br><br> Calculate the total current drawn from the 9-volt battery
    11·1 answer
  • If mass (M), Velocity (V) and length (L) are considered as fundamental quantities in certain system of unit. Find the dimensiona
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!