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
Rudik [331]
3 years ago
13

an airplane with an airspeed of 160 km/h pointing due east encounters a crossing of 175 km/h directed from south. What is the re

sultant magnitude and direction of the airplane's velocity
Physics
1 answer:
anygoal [31]3 years ago
6 0

Answer:335 km/h

Explanation:

You might be interested in
Acceleration = change of velocity divided by time interval = Δv/Δt.
MariettaO [177]

Answer:

a=2.378 m/s^2

Explanation:

a=Δv/Δt------eq(1)

Δv=Vf-Vi=120 km/h-0 km/h=120 km/h

or Δv=33.3 m/sec

or time=t=14s

putting values in eq(1)

a=33.3/14

a=2.378 m/s^2

6 0
3 years ago
One of the signs a chemical reaction is taking place
ladessa [460]

Answer:  One of the signs a chemical reaction is taking place is the presence of bubbles. :)

6 0
3 years ago
You are designing a new home for a cold climate. You want one room in the house to be warmed by the Sun's energy. Which material
solniwko [45]

Answer:

glass if for a good view, but for absorbing heat concrete and brick is the best

Explanation:

wood is not a good idea bc it can cause fires from too much heat and it absorbs less heat but all of that depends on how good the material your using

8 0
3 years ago
Read 2 more answers
) Water falls from a height of 60m at the rate of 15kg/s to operate a turbine. The losses due to frictional force are 10% of ene
Angelina_Jolie [31]

Answer:

8100W

Explanation:

Let g = 10m/s2

As water is falling from 60m high, its potential energy from 60m high would convert to power. So the rate of change in potential energy is

P = \dot{E} = \dot{m}gh = 15*10*60 = 9000 J/s or 9000W

Since 10% of this is lost to friction, we take the remaining 90 %

P = 9000*90% = 8100 W

3 0
3 years ago
A piece of aluminum has a volume of 1.50 10-3 m3. the coefficient of volume expansion for aluminum is β = 69 ✕ 10-6 (°c)-1. the
Alex17521 [72]

Answer:

W = 3.12 J

Explanation:

Given the volume is 1.50*10^-3  m^3 and the coefficient of volume for aluminum is β = 69*10^-6 (°C)^-1. The temperature rises from 22°C to 320°C. The difference in temperature is 320 - 22 = 298°C, so ΔT = 298°C. To reiterate our known values we have:

β = 69*10^-6 (°C)^-1       V = 1.50*10^-3  m^3       ΔT = 298°C

So we can plug into the thermal expansion equation to find ΔV which is how much the volume expanded (I'll use d instead of Δ because of format):

dV = \beta V_{0} dT\\dV = (69*10^{-6})( C)^{-1} * (1.50*10^{-3})m^{3} * (298)C\\dV = 3.0843*10^-5

So ΔV = 3.0843*10^-5 m^3

Now we have ΔV, next we have to solve for the work done by thermal expansion. The air pressure is 1.01 * 10^5 Pa

To get work, multiply the air pressure and the volume change.

W = P * dV = (1.01 * 10^5)Pa * (3.0843*10^{-5})m^3\\W = 3.115143J

W = 3.12 J

Hope this helps!

4 0
3 years ago
Other questions:
  • Formation of hydrogen bonds requires hydrogen atoms and what else?
    6·1 answer
  • Which two, or more, of the following actions would increase the energy stored in a parallel plate capacitor when a constant pote
    12·1 answer
  • The electric potential V in the space between two flat parallel plates 1 and 2 is given (in volts) by V = 2200x2, where x (in me
    15·1 answer
  • Look at the image of this rock formation near the coast of Palau, Italy. Which factors could contribute to a collapse of the led
    14·2 answers
  • Develop expression for equation for uniform motion in a straight line
    12·1 answer
  • John is pushing (horizontally) on a 100 kg (Fw = 980N) bench with an unknown force. If the coefficient of static friction is 0.2
    6·1 answer
  • A baseball is thrown a distance of 20 m what is its speed if it takes 0.5 seconds to cover the distance
    12·1 answer
  • Pls help me w this, I've been doing this since 5 minutes ago​
    13·1 answer
  • Which of the following is the least important factor of a personal fitness program? A. the individual's personal conditions B. t
    11·1 answer
  • I want to know what is the pressure of the stratosphere simple numbers <br> I’m in 6 grade
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!