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
viva [34]
3 years ago
15

HELP PLEASE 20 ;OINTS

Physics
1 answer:
77julia77 [94]3 years ago
7 0
I’m pretty sure it’s C.
You might be interested in
Difference between relaxation time and collision time?
Black_prince [1.1K]
For the answer to the question above, let us first start with relaxation time. it is the absence of an external electric field, the free electrons in a metallic substance will move in random directions so that the resultant velocity of free electrons in any direction is equal to zero. While the Collision time it is<span> the mean </span>time<span> required for the direction of motion of an individual type particle to deviate through approximately as a consequence of </span>collisions<span> with particles of type.</span>
6 0
3 years ago
Read 2 more answers
The buoyant force on a submerged boulder acts upward because _______.
vovikov84 [41]
Greater water pressure acts on the bottom than on the top
4 0
3 years ago
the threshold of hearing is defined as the minimum discernible intensity of the sound. it is approximately 10−12w/m2 . find the
vivado [14]

The distance is 97720.5 m

From the question, we have

P = 0.06 W × 2 = 0.12 W

d = ?

Sound intensity, I = P/4πd²

I = 10⁻¹² W/m²

10⁻¹² = 0.12/4πd²

d = 97720.5 m

The distance is 97720.5 m

Sound intensity :

The power carried by sound waves per unit area in the direction  perpendicular to that region is known as sound intensity or acoustic intensity. The watt per square meter (W/m2) is the SI unit of intensity, which also covers sound intensity. Sound intensity is a measure of how quickly energy moves across a given space. The unit area in the SI measurement system is 1 m2. So Watts per square meter are used to measure sound intensity. As there will be energy flow in certain directions but not in others, sound intensity also provides a measure of direction.

To learn more about Sound intensity visit: brainly.com/question/12899113

#SPJ4

3 0
1 year ago
A bullet with an initial kinetic energy of 400 J strikes a wooden block where a 8000 N resistive force stops the bullet. What is
Sindrei [870]

Answer:

d = 0.05 [m] = 50 [mm]

Explanation:

We must remember the principle of conservation of energy which tells us that energy is transformed from one way to another. For this case, the initial kinetic energy is transformed into useful work that is equal to the product of force by distance.

E_{k}=F*d\\400 = 8000*d\\d = 0.05 [m] = 50 [mm]

5 0
3 years ago
Use what you know about reflection and absorption of light to complete the sentence.
Blababa [14]

A red ladybug appears red in white light, red in red light, and black in blue light. Those would be the proper selections you'd need.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The number of wave troughs that pass by every second is a wave's _________.
    9·1 answer
  • After an earthquake, which type of seismic wave arrives last at a seismometer?
    6·1 answer
  • Find the speed for a star in which this line appears at wavelength 120.2 nm . Express your answer to three significant figures a
    15·1 answer
  • A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source,
    11·1 answer
  • If you know the power rating of an appliance and the voltage of the line it is attracted to , you can calculate the current the
    15·2 answers
  • An astronaut weighing 190 lbs on Earth is on a mission to the Moon and Mars.
    9·1 answer
  • 6. Which of the following is the force needed to make a 1-kg object accelerate at 1 m/s??
    7·2 answers
  • Define position <br> i am not sure?
    13·1 answer
  • When two forces are the same strength but act in opposite direction , they are called
    13·1 answer
  • Which of the following statements is true? Thunderstorms are not dangerous The eye of a hurricane is the most danger Tornadoes f
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!