Ask question

Ask question

All categories

4 years ago

6

Two tuning forks are played at the same time. One has a frequency of 176 Hz and the other is 178 Hz. How many beats per second a

re heard?

1 answer:

Anna [14]4 years ago

6 0

Answer:

There is 2 beats per second.

Explanation:

You have to subtract them to find your answer and 178 - 176= 2

You might be interested in

when preparing for a climb, many climbers will measure the air pressure at the highest altitudes to which they will be climbing.

dmitriy555 [2]

Answer: Because even at high altitudes there is still plenty of oxygen for breathing. However, pressure is what drives the oxygen into the blood stream. At lower pressure we aren't able to breath because the pressure is not high enough to get the O2 into the blood.

Explanation:

7 0

3 years ago

You have two pieces of wire that allow electrons to pass through them when they are connected to each other. If you insert a pie

hoa [83]

Out of the following choices given, if you insert a piece of rubber between the wires, the electrons do not flow. The rubber material is an insulator. The correct answer is D.

5 0

3 years ago

Read 2 more answers

To practice Problem-Solving Strategy 15.1 Mechanical Waves. Waves on a string are described by the following general equation y(

NeX [460]

Answer:

The transverse displacement is $y(1.51 , 0.150) = 0.055 m$

Explanation:

From the question we are told that

The generally equation for the mechanical wave is

$y(x,t) = Acos (kx -wt)$

The speed of the transverse wave is $v = 8.25 \ m/s$

The amplitude of the transverse wave is $A = 5.50 *10^{-2} m$

The wavelength of the transverse wave is $\lambda = 0540 m$

At t= 0.150s , x = 1.51 m

The angular frequency of the wave is mathematically represented as

$w = vk$

Substituting values

$w = 8.25 * 11.64$

$w = 96.03 \ rad/s$

The propagation constant k is mathematically represented as

$k = \frac{2 \pi}{\lambda}$

Substituting values

$k = \frac{2 * 3.142}{0. 540}$

$k =11.64 m^{-1}$

Substituting values into the equation for mechanical waves

$y(1.51 , 0.150) = (5.50*10^{-2} ) cos ((11.64 * 1.151 ) - (96.03 * 0.150))$

$y(1.51 , 0.150) = 0.055 m$

4 0

4 years ago

A 150 kg mass is on a cliff 50 m high. What is its potential energy? 9 How much work is done moving a 2.5 kg book to a shelf 3.0

Mumz [18]

PE=mgh=150kg*9.8m/c² *50m=73500 J

W=F*d=mgd = 2.5*9.8*3.0 = 73.7J

W=mgh=68.0*7.62*9.8 =50.78 J
150 lb = 68.0 kg
25 ft = 7.62m

4 0

4 years ago

How is newtons law of motion used for testing the safety of automobile

Colt1911 [192]

Newton's first law of motion is an object in motion stays in motion until acted upon by another force. Driving at 30 mph in a car is going to stay constant until you crash the car into a wall, stopping the car.

3 0

4 years ago