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
Bond [772]
2 years ago
12

When a jet plane is cruising at high altitude, the flight attendants have more of a "hill" to climb as they walk forward along t

he aisle than when the plane is cruising at a lower altitude. why does the pilot have to fly with a greater "angle of attack" at high altitude than at low?
Physics
1 answer:
anygoal [31]2 years ago
3 0

Answer:

Probably because the Bernoulli effect (lift) is insufficient in thinner air to keep the plane aloft - increasing the angle of attack will increase the lift on the airplane

You might be interested in
You need to use the diagram to answer 7
Slav-nsk [51]

Your answer is 3 or C

When plates approach one another, the dense plates slips underneath the less dense one

4 0
4 years ago
Day and night are caused by the earths blank
professor190 [17]
The answer is Earths rotation
5 0
3 years ago
Hi im really confused:
Vitek1552 [10]

The energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ

U =  c_{p} m ΔT

U = Energy

c_{p} = Specific heat

m = Mass

ΔT = Change in temperature

ρ = Density

V = Volume

ρ = 1000 g / m³ (Dry air )

c_{p} = 1 J / g K

ΔT = 5 °C

V = 4 * 4 * 3

V = 48 m³

m = ρ V

m = 1000 * 48

m = 48000 g

U = 1 * 48000 * 7

U = 336000 J

U = 336 kJ

Therefore, the energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ

To know more about energy required to raise temperature

brainly.com/question/12372041

#SPJ1

3 0
1 year ago
0.10-kilogram model rocket’s engine is designed to deliver an impulse of 6.0 newton-seconds. If the rocket engine burns for 0.75
UkoKoshka [18]

Answer:

8.0 N

Explanation:

Force: This can be defined as the mass of a body and its acceleration. The S.I unit of Force is Newton (N).

Mathematically, Fore is expressed as

F = ma ........................... equation 1

Where F = force, m = mass, a = acceleration.

and

I = mΔv

Δv = I/m ............................ Equation 2

Where I = impulse, m = mass, Δv = change in velocity

Given: I = 6.0 Newton-seconds, m = 0.1 kilogram.

Substituting into equation 2

Δv = 6.0/0.1

Δv = 60 m/s.

But

a = Δv/t

where t = time = 0.75 seconds.

a = 60/0.75

a = 80 m/s²

Substitute the values of a and m into equation 1.

F = 0.1(80)

F = 8.0 N.

Thus the average force produced = 8.0 N

6 0
3 years ago
What are the units of mass and weight
DENIUS [597]

Answer:Because mass and weight are separate quantities, they have different units of measure. In the International System of Units (SI), the kilogram is the basic unit of mass, and the newton is the basic unit of force. The non-SI kilogram-force is also a unit of force typically used in the measure of weight.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A cyclist is coasting at 12 m/s when she starts down a 450-m-long slope that is 30 m high. The cyclist and her bicycle have a co
    10·2 answers
  • “A child rides a bike around the block” is it acceleration,speed or velocity
    15·1 answer
  • How is acceleration calculated
    6·2 answers
  • I need to know which atom is left after the decay
    12·1 answer
  • Severus Snape knows that density of his powder is 3.00 g/cm3 . He also knows he needs 3.00 cm3 of this powder. What mass in gram
    5·1 answer
  • a block initially at rest has a mass m and sits on a plane incline at angle. it slides a distance d before hitting a spring and
    15·1 answer
  • Carlos uses a rope to pull his car 30 m to a parking lot because it ran out of gas. If Carlos exerts 2,000 N of force to pull th
    13·2 answers
  • Which pair of forces will give a resultant of the least value? (5
    12·1 answer
  • What is the gravitational field strength
    9·2 answers
  • Why is electromagnet are called temporary magnet <br>pls its urgent<br>​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!