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
liberstina [14]
3 years ago
6

Jimmy held the end of a metal bar over a fire while holding on to the opposite end. After a few minutes, the end he was holding

began to get very hot. Which process is illustrated in this example?
A. conduction
B. induction
C. radiation
D. convection
Physics
1 answer:
Pavel [41]3 years ago
6 0

Answer:

A. Conduction

Explanation:

Conduction is the transfer of heat within the material itself, and he's holding the metal bar over the fire.

You might be interested in
Which statement describes ionic compounds?
sladkih [1.3K]

Answer:the answer is b

Explanation:

This is because in an ionic bond negative and positive bonds are present

8 0
2 years ago
If your brakes fail, look for something to rub against, try to pick something that will not give way.True or False?
Yanka [14]

Answer:

False

Explanation:

False

If brakes fail then we should not run against any object or wall to slow down the speed instead we should use friction forces slow down the car and shift gear to neutral to cease any acceleration.

By driving zig-zag motion friction force on the tires may stop the car after some distance.

Do not try to shut off the engine as it will lock the steering mechanism any prove fatal.

7 0
3 years ago
An ultrasonic ruler, such as the one discussed in Example 4 in Section 16.6, displays the distance between the ruler and an obje
garik1379 [7]

Answer:

reading would be 5.413 m.

Explanation:

Given:-

- The actual distance from ruler to an object is d = 24.0 m

- The adiabatic bulk modulus, B = 2.37 *10^9 Pa

- The density of seawater, ρ = 1025 kg/m^3

- The preset value of speed of sound in air, v_th = 343 m/s.

Find:-

Determine the distance reading that the ruler displays.

Solution:-

- We will first determine the actual speed of the sound ( v_a) in sea-water which can be determined from the following formula:

                            v_a = √ (B /  ρ )

- Plug in the values in the relationship above and compute v_a:

                            v_a = √ ( 2.37 *10^9 /  1025  )        

                            v_a = 1520.59038 m/s

- The time taken (t) for for the sound to travel from source(ruler) to an object which is d distance away.

                            d = v_a*t

                            t = d / v_a

                            t = 24.0 / 1520.59038

                            t = 0.01578 s

- The distance reading on the ruler would be preset speed (v_th) of sound in air multiplied by the time taken(t).

                           reading = v_th*t

                           reading = (343)*(0.01578)

                                         = 5.413 m

6 0
3 years ago
Which receptor is responsible for reporting light pressure and cold?
Ugo [173]
D. meissner's corpuscles
7 0
3 years ago
The ________-year solar cycle is characterized by a variation in the number of sunspots and a reversal of the polarity of the Su
Evgen [1.6K]

22 year solar cycle is characterized by a variation in the number of sunspots and a reversal of the polarity of the Sun as a whole.

What are sunspots?

Sunspots are caused by disturbances in the Sun's magnetic field welling up to the Sun's visible surface.

Sunspot are region of the earth that are more darker than other surfaces. They have a reduced temperature.

If sunspots are active, more solar flares will result creating an increase in geomagnetic storm activity for Earth.

Here, the sun's magnetic field changes polarity approximately every 11 years. So, for reversal polarity of the sun, 22 year solar cycle is characterized by a variation in the number of sunspots and a reversal of the polarity of the Sun as a whole.

Learn more about sunspots here:

<u>brainly.com/question/18339194</u>

#SPJ4

5 0
2 years ago
Other questions:
  • How does a bicycle rider's energy of motion changes as the gain speed while riding down a hill?
    10·1 answer
  • Explain how a battery in a circuit is similar to a water pump.
    14·1 answer
  • Complete these sentences. If a bouncing ball has a total energy of 20 J and a kinetic energy of 5 J, the ball’s potential energy
    9·2 answers
  • Which scenario is best illustrates the concept of illusory correlation? A.A person argues that it is dangerous to climb mountain
    13·2 answers
  • What does a 10-dB increase in loudness represent?
    5·1 answer
  • A train starts from rest and accelerates uniformly, until it has traveled 3.7 km and acquired a velocity of 26 m/s. What is the
    12·1 answer
  • A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely to use
    12·2 answers
  • A wave in the ocean has a wavelength of 2 m and a frequency of 0’5 Hz. What is the speed of this wave?
    6·1 answer
  • What muscle are controlled by the autonomic muscle system and are involuntary
    15·2 answers
  • How does light behaves when light passes through water?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!