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
Norma-Jean [14]
2 years ago
8

3. What is the velocity of a wave that has a frequency of 750 Hz and a wavelength of 45.7 cm?

Physics
1 answer:
sweet-ann [11.9K]2 years ago
3 0

Explanation:

v=(750)(45.7)

v=34275

or

v=(750)(0.457)

v=342.75

You might be interested in
Find the net work W done on the particle by the external forces during the motion of the particle in terms of the initial and fi
steposvetlana [31]

Answer:

W=K_f-K_i

Explanation:

The work done on a particle by external forces is defined as:

W=\int\limits^{r_f}_{r_i} {F\cdot dr} \,

According to Newton's second law F=ma. Thus:

W=\int\limits^{r_f}_{r_i}{ma\cdot dr} \,\\

Acceleration is defined as the derivative of the speed with respect to time:

W=m\int\limits^{r_f}_{r_i}{\frac{dv}{dt}\cdot dr} \,\\\\W=m\int\limits^{r_f}_{r_i}{dv \cdot \frac{dr}{dt}} \,

Speed is defined as the derivative of the position with respect to time:

W=m\int\limits^{v_f}_{v_i} v \cdot dv \,

Kinetic energy is defined as K=\frac{mv^2}{2}:

W=m\frac{v_f^2}{2}-m\frac{v_i^2}{2}\\W=K_f-K_i

3 0
2 years ago
What energy is directly dependent upon velocity and mass?
erastova [34]

Answer:

Kinetic energy

Explanation:

3 0
2 years ago
Which of the following is an example of increasing friction intentionally? a. waxing skis b. adding grease to gears on a bike c.
Aleonysh [2.5K]
C i think that it tell me if its wrong
7 0
3 years ago
Which pair does NOT have an electric force between them?.
viva [34]

Two neutral objects will not have any electric force of attraction or repulsion between them.

<h3>What is the condition for the electric force between two objects?</h3>

As we know from the electrostatics that whenever there are two charges having a positive charge on one and a negative on the other will attract each other

similarly, if they are having like charges which are both of them having positive or both of them having a negative charge then there will be a force of repulsion between them.

But if both of them or even one of them is neutral then there will not be any electric force between them.

Thus neutral objects will not have any electric force of attraction or repulsion between them.

To know more about the nature of charged particles follow

brainly.com/question/22492496

5 0
2 years ago
To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 400-loop-per
gtnhenbr [62]

Answer:

B = 4.059 x 10¹⁵ T

Explanation:

Given,

Number of loop, N = 400

radius of loop, r = 0.65 x 10⁻¹⁵ m

Current, I = 1.05 x 10⁴ A

Magnetic field at the center of the loop

B = \dfrac{\mu_0NI}{2R}

B = \dfrac{4\pi\times 10^{-7}\times 400 \times 1.05 \times 10^4}{2\times 0.65\times 10^{-15}}

B = 4.059 x 10¹⁵ T

7 0
3 years ago
Other questions:
  • ASAP FIRST TO ANSWER CORRECTLY WILL BE BRAINLIEST
    13·2 answers
  • What forms of technology are scientists using to study El Niño? need help fast!?!?!?!?
    7·2 answers
  • An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 6.25 m/s2.
    10·2 answers
  • The energy efficiency of an incandescent light bulb (= the percentage of consumed power that is actually converted into radiated
    8·1 answer
  • Define thermal conductivity.
    11·1 answer
  • Explain the procedures used and data recorded to identify a crystalline mineral based on its properties.
    5·2 answers
  • List the three properties of a thermometer​
    9·1 answer
  • The kind of heat transfer that travels through space in electromagnetic waves is?
    7·2 answers
  • What is the velocity of a jet plane that travels 528.0 meters in 4.0 seconds?
    10·1 answer
  • Which metals have similar chemical properties? Check all that apply.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!