All categories

2 years ago

2. Determine the units of the quantity described by each of the following

Physics

1 answer:

notka56 [123]2 years ago

3 0

Explanation:

a.) kg(m/s)(1/s) = force (N)

b.) (kg/s)(m/s) = force (N)

c.) (kg/s)(m/s) = force (N)

d.) (kg/s)(m/s) = force (N)

You might be interested in

A car starts from rest and after 7.0 seconds it is moving at 42 m/s. What is the car's average acceleration?

andriy [413]

<h2>Answer:</h2>

<em>Hello, </em>

<h3><u>Q</u><u>UESTION)</u></h3>

a = 426/7
a = 6 m/s²

The car's acceleration is therefore 6 m/s².

8 0

2 years ago

A 64.0 cm long cord is vibrating in such a manner that it forms a standing wave with two antinodes. (The cord is fixed at both e

xxMikexx [17]

Answer:

the wave represents the second harmonic.

Explanation:

Given;

length of the cord, L = 64 cm

The first harmonic of a cord fixed at both ends is given as;

$f_o = \frac{V}{2L}$

The wavelength of a standing wave with two antinodes is calculated as follows;

L = N---> A -----> N + N ----> A -----> N

Where;

N is node

A is antinode

L = N---> A -----> N + N ----> A -----> N = λ/2 + λ/2

L = λ

The harmonic is calculated as;

$f = \frac{V}{\lambda} \\\\f = \frac{V}{L} = 2(\frac{V}{2L} ) = 2(f_o) = 2^{nd} \ harmonic$

Therefore, the wave represents the second harmonic.

L = λ

5 0

2 years ago

What is the difference between 3.15 m and 2.006 m with the correct number of significant figures

snow_lady [41]

The differences is 1.144

5 0

3 years ago

Read 2 more answers

How are electromagnetic waves different from sound or water waves?

Annette [7]

Explanation:

Electromagnetic waves are different from sound or water waves in such a way that water and sound waves are called mechanical waves that requires a material medium for their propagation.

Electromagnetic waves do no require a material medium for propagation.

Electromagnetic waves are carried or transported by radiation and this can be passed through vacuums and different other materials.
But mechanical waves such as water and sound waves requires a material medium for their propagation.
They cannot pass through a vacuum.

8 0

2 years ago

You are to drive to an interview in another town, at a distance of 310 km on an expressway. The interview is at 11:15 a.m. You p

Sloan [31]

Answer:

Explanation:

Time to cover first 100 km = 1 hour.

time remaining = 3.15 - 1 = 2.15 hour .

Time to cover next 42 km = 1 hour .

Time remaining = 2.15-1 = 1.15 hour.

Distance to be covered = 310 - 142

= 168 km

least speed needed = distance remaining / time remaining

= 168 / 1.15

= 146.08 km / h .

4 0

3 years ago