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
ratelena [41]
3 years ago
12

The velocity of sound on a particular day outside is 331 meters/second. What is the frequency of a tone if it has a wavelength o

f 0.6 meters?
5.52 × 102 hertz
2.56 × 102 hertz
459 × 102 hertz
675 × 102 hertz
990 × 102 hertz
Physics
1 answer:
tatiyna3 years ago
7 0

Answer:

5.52 \cdot 10^2 Hz

Explanation:

For a wave, the relationship between velocity, wavelength and frequency is given by the wave equation:

v=f\lambda

where

v is the velocity

f is the frequency

\lambda is the wavelength

For the sound wave in this problem, we have:

v = 331 m/s

\lambda=0.6 m

Solving the equation for f, we find the frequency:

f=\frac{v}{\lambda}=\frac{331}{0.6}=5.52\cdot 10^2 Hz

You might be interested in
Two boxes on opposite ends of a massless board that is 3.0 m long. The board is supported in the middle by a fulcrum. The box on
rosijanka [135]

Answer:

b. 1.1 m

Explanation:

It is given that the total distance between the masses is equal to the length of the board, which is 3 m. Therefore,

s_{1} + s_{2} = 3\ m\\\\s_{2} = 3\ m - s_{1}\ --------- eqn(1)

where,

s₁ = distance of fulcrum from left mass

s₂ = distance of fulcrum from right mass

In order to achieve balance, the torque due to both masses must be equal:

T_{1} = T_{2}\\m_{1}s_{1} = m_{2}s_{2}\\(25\ kg)(s_{1}) = (15\ kg)(s_{2})\\\\\frac{15\ kg}{25\ kg}(s_{2}) = s_{1}\\\\using\ eqn(1):\\(0.6)(3\ m - s_{1}) = s_{1}\\1.8\ m = 1.6\ s_{1}\\s_{1} = \frac{1.8\ m}{1.6}

s₁ = 1.1 m

Hence, the correct option is:

<u>b. 1.1 m</u>

4 0
3 years ago
A boy runs 400m at an average speed of 4.0m/s he runs the first 200m in 40 s how long does he take to run the second 200m?
IRISSAK [1]
If he runs at the same speed he will cover next 200m in 40s
that is at the average of 4.0m
8 0
3 years ago
Pls help asappppppppp
HACTEHA [7]

Answer:

I am going to say A

Explanation:

solids are normally close and tightly packed molecules and while ice is in solid form,so is it.

Let me know if i was right! Hope this helps!   :)

3 0
3 years ago
Read 2 more answers
As a result of photosynthesis is the production of sugar molecules known as what?
Bezzdna [24]

Answer:

Glucose

Explanation:

4 0
3 years ago
Read 2 more answers
Using this formula Vj = V; + at, If a vehicle starts from rest
Furkat [3]

Answer:

<em>The final speed of the vehicle is 36 m/s</em>

Explanation:

<u>Uniform Acceleration</u>

When an object changes its velocity at the same rate, the acceleration is constant.

The relation between the initial and final speeds is:

v_f=v_o+a.t

Where:

vf  = Final speed

vo = Initial speed

a   = Constant acceleration

t   = Elapsed time

The vehicle starts from rest (vo=0) and accelerates at a=4.5 m/s2 for t=8 seconds. The final speed is:

v_f=0+4.5*8

v_f=36\ m/s

The final speed of the vehicle is 36 m/s

5 0
3 years ago
Other questions:
  • If a net force accelerates a 4.5-kg tool at 40 m/s2, what acceleration would that same net force give to an 18-kg tool?
    9·1 answer
  • How does the force due to gravity on Mars compare to the force due to gravity on Earth? , and Using Newton's Second Law, explain
    11·1 answer
  • When a child does not know how to react emotionally to a situation they will observe the emotional expressions of others. This i
    7·1 answer
  • Does the density of aluminum ever change?
    9·1 answer
  • Help please!!!
    5·1 answer
  • The purpose of technology is to solve problems and meet needs. True False
    11·1 answer
  • The positive muon (?+), an unstable particle, lives on average 2.20×10?6s (measured in its own frame of reference) before decayi
    15·1 answer
  • An aluminum block has a mass of 0.25 kg and a density of 2700 kg/m3. a) Calculate the volume of the aluminium block. b) Determin
    13·1 answer
  • In an arcade game a 0.117 kg disk is shot across a frictionless horizontal surface by compressing it against a spring and releas
    8·1 answer
  • Use dimensional analysis to determine how the linear acceleration a in m/s2 of a particle traveling in a circle depends on some,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!