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
Nonamiya [84]
3 years ago
11

The decibel scale is used to measure the perceived loudness of a sound. a. True b. False

Physics
1 answer:
Mademuasel [1]3 years ago
8 0
True because when you look at the scale you see that some louder things are higher on it than others
You might be interested in
An 16.00-kg object is suspended by a rope at some height, h if the object has a potential energy of 900.01j what is the objects
qwelly [4]

Answer:

5.740 m

Explanation:

PE = mgh

900.0 J = (16.00 kg) (9.8 m/s²) h

h = 5.740 m

5 0
3 years ago
Read 2 more answers
Calculate Vector component in Y if the hypotenuse is 32 and angle is 45
Lerok [7]

Answer:

The correct option is;

c. 22.6

Explanation:

The given parameters are;

The hypotenuse of the vector = 32

The angle of the vector = 45°

Therefore, the vector component in the y-axis is given as follows;

v_y = v \times sin(\theta)

Substituting the values from the question gives;

v_y = 32 \times sin(45^{\circ}) \approx 22.6

The vector component in the y-axis, v_y, is approximately 22.6.

8 0
3 years ago
Prove for N/C=Volt/m
Zigmanuir [339]

Answer:

simple, Volt =change in potential energy/Charge

the unit of energy is newton meter (Force*distance)

the unit of charge is coloumb

So, Volt/meter=newton* meter/coloumb*meter

=newton/coloumb (hence proved)

This unit is the potential drop per unit of length in a conductive wire with uniform resistance

7 0
3 years ago
One of the advantages of alternating current (ac) over direct current (dc) is the ease with which voltage levels can be increase
Svet_ta [14]

Answer:

True

Explanation:

In an alternating current, voltage levels can be easily increased or decreased as per the requirements of the energy distribution in practical world.

Hence, the given statement is true

3 0
2 years ago
Emily holds a banana of mass m over the edge of a bridge of height h. She drops the banana and it falls to the river below. Use
bearhunter [10]

Answer:

The mass of the banana is m and it is at height h.

Applying the Law of Conservation of Energy

              Total Energy before fall = Total Energy after fall

                                E_{i}  = E_{f}

Here, total energy is the sum of kinetic energy and potential energy

K.E_{i} + P.E_{i} = K.E_{f} + P.E_{f}       (a)

When banana is at height h, it has

                 K.E_{i} = 0    and    P.E_{i} = mgh          

and when it reaches the river, it has

       K.E_{f}  = 1/2mv^{2}    and   P.E_{f}  = 0

Putting the values in equation (a)

                              0 + mgh = 1/2mv^{2} + 0

                                      mgh = 1/2mv^{2}

<em>cutting 'm' from both sides</em>

<em>                                           </em>gh = 1/2v^{2}

                                          v = \sqrt{2gh}

Hence, the velocity of banana before hitting the water is

                                          v = \sqrt{2gh}

5 0
3 years ago
Other questions:
  • Answer my question plzz !!<br>any body
    7·1 answer
  • An object, which is initially at rest, accelerates at a rate of 10 m/s2 . Its final position is 85 m from its initial position a
    5·1 answer
  • The action of property being taken directly from a person or in that person's presence must be an element in which type of crime
    6·1 answer
  • During a baseball game, a batter hits a high
    12·2 answers
  • The allowed energies of a quantum system are 0.0 eV, 5.0 eV , and 8.5 eV .
    7·1 answer
  • It is best to say that marine debris
    13·1 answer
  • What part of the diagram is labeled by the number 3?
    7·1 answer
  • A woman pulls on a 6.00-kg crate, which in turn is connected to a 4.00-kg
    11·2 answers
  • Gravity causes all falling objects to accelerate at a rate of 98 m/s2.<br> O True<br> O False
    10·1 answer
  • By using electroscope, if the body is negatively charged then due to electrostatic induction, then on the leaves there will be a
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!