Ask question

Ask question

All categories

3 years ago

15

a car going 22 m/s accelerates to pass a truck. Five seconds later the car is going 35 m/s. Calculate the acceleration of the ca

r

1 answer:

Maksim231197 [3]3 years ago

5 0

Using the formula

$a\: = \frac{v - u}{t}$

$a = \frac{35 m/s \: - \: 22 m/s}{5s}$

$a = 2.6 {m/s^2}$

You might be interested in

In the same year, the average finishing time for U.S. women was 4 hours and 41 minutes. What was the average female speed in mil

Nana76 [90]

We have that for the Question "In the same year, the average finishing <em>time</em> for U.S. women was 4 <u>hours </u>and 41 <em>minutes</em>. What was the average female speed in miles per <em>hour</em>?" it can be said that

The average female speed in miles per hour

$V_a=\frac{D}{4.683hours}$

From the question we are told

In the same year, the <u>average</u> finishing <em>time</em> for U.S. women was 4 <u>hours </u>and 41 <em>minutes</em>. What was the average female speed in <u>miles</u> per <em>hour</em>?

<h3>Average speed </h3>

This is defined as the collective <u>mean</u> of different travel <em>intervals </em>

Generally the equation for Speed is mathematically given as

V=\frac{Distance}{Time}

Therefore

For 4 <u>hours </u>and 41 <em>minutes=4.683hours</em>

This travels time was <em>obtained </em>over a series of distance

<em>Hence</em>

<em>Distance D</em>

The average female <em>speed</em> in miles per hour

$V_a=\frac{D}{4.683hours}$

For more information on speed visit

brainly.com/question/7359669

8 0

2 years ago

Edit question A 37-cm-long wire of linear density 18 g/m vibrating at its second mode, excites the third vibrational mode of a t

Pachacha [2.7K]

Answer:

176.9N

Explanation:

The following data were given

wire length,L=37cm=0.37m

linear density=18g/m

tube length,=192cm=1.92m,

speed of sound,v=343m/s

Since it is an open-closed tube, the second harmonic frequency is expressed as

$f_{3}=3(\frac{v}{4l} )\\f_{3}=3(\frac{343}{4*1.92})\\f_{3}=133.98Hz$

The relationship between the tension, linear density and second harmonic frequency is expressed as

$f_{3}=\frac{1}{2l_{w}}\sqrt{\frac{T}{\alpha } } \\T=(f_{3}*2l_{w})^{2}\alpha \\T=(133.984*2*0.37)^{2}*18*10^{-3}\\T=176.9N$

7 0

3 years ago

Which best describes cosmic microwave background radiation? radiation thought to exist but not yet measured radiation predicted

grigory [225]

Answer: leftover radiation from the big bang

Microwave background radiation is a form of electromagnetic radiation that is present in the whole universe and completely fills it.

Its frequency belongs to the microwaves range and is one of the main demonstrations of the of the Big Bang theory model.

It is important to note the Big Bang occurred 400,000 years before the events related to the microwave cosmic radiation, this means the Big Bang occurred first.

8 0

3 years ago

Solved, can someone check it over!

kakasveta [241]

Answer:

its good no need to change anything :))

4 0

3 years ago

Suppose you wanted to be able to see astronauts on the moon. What is the smallest diameter of the objective lens required to res

LenaWriter [7]

Answer:

A:1.94

Explanation:

cause that the only one on there

5 0

3 years ago