3 years ago

The velocity of a wave with a wavelength of 4.7000 m and frequency of 34.00 hz

Physics

1 answer:

Ivanshal [37]3 years ago

4 0

The answer is 253.8 m/s

You might be interested in

Determine the gravitational potential energy, in kJ, of 3 m3 of liquid water at an elevation of 40 m above the surface of Earth.

melomori [17]

Explanation:

We will calculate the gravitational potential energy as follows.

$P.E_{1} = mgz_{1}$

$P.E_{1} = (\rho V)gz_{1}$

= $1000 kg/m^{3} \times 3 m^{3} \times 9.7 \times 40 m$

= 1164000 J

or, = 1164 kJ (as 1 kJ = 1000 J)

Now, we will calculate the change in potential energy as follows.

$\Delta P.E = mg(z_{2} - z_{1})$

= $\rho \times V \times g (z_{2} - z_{1})$

= $1000 \times 3 \times 9.7 (10 - 40)m$

= -873000 J

or, = -873 kJ

Thus, we can conclude that change in gravitational potential energy is -873 kJ.

4 0

3 years ago

А)

Anastaziya [24]

Answer:

4.5s

Explanation:

u=30m/s

v=50m/s

s=180m

a=constant(given)

By third equation of motion, v

+2as

(50)

=(30)

+2a(180)

m/s

By first equation of motion, v=u+at

50=30+(

=4.5sec

4 0

3 years ago

A tennis ball is dropped from 1.13 m above the

Alex73 [517]

Answer:

-4.71 m/s

Explanation:

Given:

y₀ = 1.13 m

y = 0 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: v

v² = v₀² + 2a (y − y₀)

v² = (0 m/s)² + 2(-9.8 m/s²) (0 m − 1.13 m)

v = -4.71 m/s

7 0

3 years ago

Kind of physical barrier

adoni [48]

Doors, walls, distance.

5 0

3 years ago

D) cube

kondor19780726 [428]

Answer:

c because it makes since

Explanation:

I took the test

8 0

3 years ago

Read 2 more answers