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
mixas84 [53]
3 years ago
8

A spinning tossed baseball veers off course in the direction ofA) reduced air pressure on the ball.B) increased air pressure on

the ball. C) non-crowded streamlines.
Physics
1 answer:
katovenus [111]3 years ago
3 0

Answer:

A) reduced air pressure on the ball.

Explanation:

You might be interested in
Which experiment best shows water’s ability to act as a solvent? raise the temperature of water and record its boiling point. fr
IrinaVladis [17]
The vanishing of an ionic solid (like table salt) would be an example of acting like a solvent
8 0
3 years ago
Read 2 more answers
Which of the following should NOT be discussed during safety training
Juli2301 [7.4K]
Is there suppose to be an image?
7 0
3 years ago
7.22 Ignoring reflection at the air–water boundary, if the amplitude of a 1 GHz incident wave in air is 20 V/m at the water surf
Serga [27]

Answer:

z = 0.8 (approx)

Explanation:

given,

Amplitude of 1 GHz incident wave in air = 20 V/m

Water has,

μr = 1

at 1 GHz, r = 80 and σ = 1 S/m.

depth of water when amplitude is down to  1 μV/m

Intrinsic impedance of air = 120 π  Ω

Intrinsic impedance of  water = \dfrac{120\pi}{\epsilon_r}

Using equation to solve the problem

  E(z) = E_0 e^{-\alpha\ z}

E(z) is the amplitude under water at z depth

E_o is the amplitude of wave on the surface of water

z is the depth under water

\alpha = \dfrac{\sigma}{2}\sqrt{\dfrac{(120\pi)^2}{\Epsilon_r}}

\alpha = \dfrac{1}{2}\sqrt{\dfrac{(120\pi)^2}{80}}

\alpha =21.07\ Np/m

now ,

  1 \times 10^{-6} = 20 e^{-21.07\times z}

  e^{21.07\times z}= 20\times 10^{6}

taking ln both side

21.07 x z = 16.81

z = 0.797

z = 0.8 (approx)

5 0
3 years ago
Given that on Earth, gravity causes an acceleration of 9.8 m/s2, what is an acceleration of 7 g?
zzz [600]

Answer:

68.6 m/s^2

Explanation:

1 g = 9.8 m/s^2

so

7 g × 9.8m/s^2 = 68.6

7 0
2 years ago
Janelle is exploring the relationship between the brightness of a light bulb and the current that powers it. When applying these
Vlada [557]

Answer:B

Explanation:

Y is the brightest bulb

7 0
3 years ago
Other questions:
  • Write the following number in scientific notation 156.60
    11·1 answer
  • Explain the purpose of a geologic time scale
    10·2 answers
  • When a DVD is played, a laser light hits the surface of the disk and then returns to the detector. An illustration of DVD with a
    9·1 answer
  • Which is longer, 10 cm or .01 m?
    11·1 answer
  • Which kinds of objects emit visible light in the electromagnetic spectrum?1)all objects2)radioactive objects3)relatively cold ob
    8·1 answer
  • Find the unbalanced force acting on the object.
    10·1 answer
  • Explain to your friend, who is willing to accept that light moves at the same speed in any frame, why clocks on a passing train
    7·1 answer
  • What is not changed when work is done by a machine?
    11·2 answers
  • Kinetic energy is the energy of an object in motion. Potential energy is the energy associated with an object
    11·1 answer
  • A freshman's mass is 44.8kg, therefore the freshman’s weight is ___N.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!