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
Nataly [62]
3 years ago
14

Suppose you take a trip that covers 490 km and takes 1 hours to make. Your average speed is

Physics
1 answer:
Vsevolod [243]3 years ago
8 0

Answer:

B

Explanation:

490km/h

490km/1h

490000/3600

note: 1h= (60×60)=3600

hope it help??

You might be interested in
What is the formula to find the second charge in Coulomb's Law?
kicyunya [14]

Answer:

1.F is the electrostatic force between charges (in Newtons),

2.q₁ is the magnitude of the first charge (in Coulombs),

3.q₂ is the magnitude of the second charge (in Coulombs),

4.r is the shortest distance between the charges (in m),

5.ke is the Coulomb's constant. It is equal to 8.98755 × 10⁹ N·m²/C² .

5 0
2 years ago
Read 2 more answers
A long, straight, cylindrical wire of radius R carries a current uniformly distributed over its cross section.
Mice21 [21]

Answer:

Explanation:

We shall solve this question with the help of Ampere's circuital law.

Ampere's ,law

∫ B dl = μ₀ I , B is magnetic field at distance x from the axis within wire

we shall find magnetic field at distance x . current enclosed in the area of circle of radius x

=  I x π x²  / π R²

= I x²  /  R²

B x 2π x = μ₀  x current enclosed

B x 2π x = μ₀  x  I x²  /  R²

B =  μ₀   I x  / 2π R²

Maximum magnetic B₀ field  will be when x = R

B₀ = μ₀I   / 2π R

Given

B = B₀ / 3

μ₀   I x  / 2π R² = μ₀I   / 2π R x 3

x = R / 3

b ) The largest value of magnetic field is on the surface of wire

B₀ = μ₀I   / 2π R

At distance x outside , let magnetic field be B

Applying Ampere's circuital law

∫ B dl = μ₀ I

B x 2π x = μ₀ I

B = μ₀ I / 2π x

Given B = B₀ / 3

μ₀ I / 2π x = μ₀I   / 2π R x 3

x = 3R .

3 0
3 years ago
27b. You're in an airplane that flies horizontally with speed 1000 km/h (280 m/s) when an engine falls off. Ignore air resistanc
jonny [76]

Answer:

8400m

Explanation:

The engine that falls off would have the same constant horizontal velocity as the airplane's when if falls off if we ignore air resistance. So it would have a horizontal velocity of 280m/s for 30seconds before it hits the ground.

Therefor the horizontal distance the engine travels during its fall is

280 * 30 = 8400m

6 0
3 years ago
WILL MARK BRAINLIEST FOR CORRCET ANSWER!!!!!!!!!
jenyasd209 [6]

Answer:

It’s C

Explanation:

8 0
3 years ago
Read 2 more answers
The speed of a 2.0-kg object changes from 30 m/s to 40 m/s during a 5.0-second time interval.
AnnyKZ [126]

Answer:

F = 2 * 30 / 5 = 12 N to stop forward motion

F = 2 * 40 / 5 = 16 N to accelerate to 90 degrees

(12^2 + 16^2)^1.2 = 20 N   average force applied

5 0
3 years ago
Other questions:
  • True or False? A negative energy balance occurs when you take in more calories than you need, and a positive energy balance occu
    15·1 answer
  • What happens when the number of protons in an atom changes
    6·1 answer
  • Which statement best describes wavelength
    5·2 answers
  • Your car's 30.0 W headlight and 2.50 kW starter are ordinarily connected in parallel in a 12.0 V system. What power (in W) would
    15·1 answer
  • TRUE OR FALSE?
    6·1 answer
  • What is measurement ?
    14·1 answer
  • A coyote is looking for some food for its young. It spots a pocket mouse near a cactus and starts to track and hunt the mouse fo
    15·2 answers
  • How does lightning occer in the sky​
    5·2 answers
  • 7 sentences<br> about degradable<br>​
    5·1 answer
  • If you have a final velocity of 50 m/s and travelled for 120 seconds. What
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!