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
kicyunya [14]
3 years ago
8

Which benefit outweighs the risks in the technological design of headphones?

Physics
1 answer:
Dmitriy789 [7]3 years ago
7 0

Answer:

The Answer is A They can damage hearing.

Explanation:

I took the Test

You might be interested in
Which statement is the contrapositive of:
HACTEHA [7]

Answer:

E.two angles are vertical angles if, and only if they are not adjacent angles

5 0
3 years ago
The work output of a machine divided by the work input is the ____ of the machine.
s344n2d4d5 [400]
<span>The work output of a machine divided by the work input is the "Efficiency" of the machine.

Hope this helps!</span>
7 0
3 years ago
Q. No. 9 A body falls freely from the top of a tower and during the last second of its fall, it falls through 25m. Find the heig
HACTEHA [7]

Answer:

45.6m

Explanation:

The equation for the position y of an object in free fall is:

y=-\frac{1}{2} gt^2+v_0t+y_0

With the given values in the question the equation has one unknown v₀:

v_0=\frac{y-y_0}{t}+\frac{1}{2}gt

Solving for t=1:

1) v_0=y-y_0+\frac{g}{2}

To find the hight of the tower you can use the concept of energy conservation:

The energy of the body 1 sec before it hits the ground:

2) E=\frac{1}{2}m{v_0}^2+mgy_0

If h is the height of the tower, the energy on top of the tower:

3) E=mgh

Combining equation 2 and 3 and solving for h:

4) h=\frac{{v_0}^2}{2g}+y_0

Combining equation 1 and 4:

h=\frac{{(y-y_0+\frac{g}{2}})^2}{2g}+y_0

4 0
3 years ago
A small grinding wheel has a moment of inertia of 4.0*10-5kgm2. What net torque must be applied to the wheel for its angular acc
kvv77 [185]

Hi there!

We can use the rotational equivalent of Newton's Second Law:

\huge\boxed{\Sigma \tau = I \alpha}

Στ = Net Torque (Nm)

I = Moment of inertia (kgm²)

α = Angular acceleration (rad/sec²)

We can plug in the given values to solve.

\Sigma \tau = (4 * 10^{-5})(150) = \boxed{0.006 Nm}

4 0
2 years ago
There are two tuning forks struck at the same time. One tuning fork is tuned to a frequency note of 500 Hz. The other is tuned t
fomenos

Answer: 26 beats in 2 seconds

Explanation:

The number of beats per second = frequency of tuning fork 1 - frequency of tuning fork 2.

Given :

- frequency of tuning fork 1 = 500Hz

- frequency of tuning fork 2 = 487Hz

Thus,

Beats per second = 500 - 487

= 13 beats per second

Therefore in two(2) seconds, you will have 2 x 13 = 26 seconds.

6 0
3 years ago
Other questions:
  • An observer is standing at a point balloon calculus find the rate at which
    14·1 answer
  • Astrology is considered a science because it is grounded in scientific research.<br>  
    5·2 answers
  • A projectile thrown from the ground reached a horizontal displacement of 50 [m] and a maximum height of 100 [m]. What are the ma
    13·1 answer
  • Three taxi cabs make a complete trip from downtown to the airport and back in 15 , 33 and 55 minutes, respectively. If all three
    11·1 answer
  • 8. A point of Charge +3.0 X 10^-7 Coulomb is placed 2.0 X 10^-2 from a second
    15·1 answer
  • Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth a
    7·1 answer
  • In practice, both the rivet itself (length, diameter) and the hole in which it is placed have tolerances. How do these affect th
    8·1 answer
  • . What is the atomic number for calcium?
    11·1 answer
  • If you stood on mars and lifted a 15kg pack, you would be pulling with a force greater than...?
    15·1 answer
  • How much force is needed to pull a spring with a spring constant of 20 N/m a distance of<br> 25 m?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!