Ask question

Ask question

All categories

3 years ago

5

In establishing standing waves with a Slinky®, your wrist oscillates with f frequency of 4.0 Hz, and the length between any two

consecutive nodes is 2.5 meters. What is the velocity of the wave generated?
v = _____ m/s

20.
10.
1.6
0.80

1 answer:

vladimir1956 [14]3 years ago

4 0

Your answer would be <span>20.</span>

You might be interested in

Striking a fixed object at 60 MPH is the same as falling from a _____ story building:

yulyashka [42]

speed of the striking object is given as

$v = 60 mph$

now this speed in SI units given as

$v = 60 \times \frac{1609 m}{3600 s}$

$v = 26.82 m/s$

So here we can use kinematic now to find the height from where it is dropped

so here we will have

$v_f^2 - v_i^2 = 2 a d$

now we have

$v_f = 26.82 m/s$

$v_i = 0$

$a = 9.81 m/s^2$

now from above equation

$26.82^2 - 0 = 2(9.81)d$

$d = 36.67 m$

now we know that average height of 1 story building is 3 meter

so approx total number of stories in the building will be

$N = \frac{36.67}{3} = 12 story$

6 0

3 years ago

Read 2 more answers

Which is a characteristic of all ions?

zzz [600]

Answer:>

Explanation:

All ionic compounds have high melting and boiling points

6 0

3 years ago

Read 2 more answers

This is a bitter guord flower. Pick out the correct statement related to the picture:

xenn [34]

Answer:

look if its at school

Explanation:

just ask teacher to help because if we say you will not learn

just say to teacher"pls can you help me with this and everything you

don't understand

3 0

3 years ago

Alfred wegener said that earths continents are moving which evidence supports this theory

bearhunter [10]

Similarities in human fossils

6 0

3 years ago

Read 2 more answers

A bullet with momentum of 2.8 kg·m/s [E] is traveling at a speed of 187 m/s. The mass of the bullet is: a) 67 g b) 15 g c) 0.067

Vesna [10]

Answer:

The mass of the bullet is 15 g.

(b) is correct option.

Explanation:

Given that,

Momentum = 2.8 kg m/s

Speed = 187 m/s

We need to calculate the mass of the bullet

Using formula of momentum

$P = mv$

$m = \dfrac{P}{v}$

Where, P = momentum

v = speed

Put the value into the formula

$m = \dfrac{2.8}{187}$

$m = 0.015\ kg$

$m = 15\ g$

Hence, The mass of the bullet is 15 g.

4 0

3 years ago