Ask question

Ask question

All categories

2 years ago

14

A cyclist rides at a constant speed of 4. 5 m/s around a curve. If the centripetal acceleration is 29 m/s2, what is the radius o

f the curve? 0. 16 m 0. 70 m 6. 4 m 34 m.

1 answer:

QveST [7]2 years ago

3 0

Answer:

a = v^2 / R = 4.5^2 / R = 29

R = 4.5^2 / 29 = .70 m

You might be interested in

Select all that apply.

Ivanshal [37]

The answer is B and D

5 0

4 years ago

Read 2 more answers

PLEASE HELLP ILL GIVE BrAINLY AND HEART

ipn [44]

Answer:

D

Explanation:

5 0

3 years ago

Another science question...

777dan777 [17]

In a neutral atom, the number of protons and electrons are always equal.

However, if there are more number of protons than electrons, we say the atom is now positively charged, (since protons are positively charged and the charges on electron cant cancel them out)

If there are more number of electrons than protons, the atom would be negatively charged.

If however there are different number of neutrons in an atom,but same proton number- we call them as isotopes. example 1H2 and 1H3 they have same protons but different neurtrons! hence they are isotopes of hydrogen

Hope this helpss

4 0

4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20%5Cunderline%7B%20%5Ctext%7BQUESTIONS%7D%7D%20%3A%20" id="TexFormula1" title=" \underline{

Musya8 [376]

Answer:

Solution given:

<u>any three applications of electromagnetic </u><u>waves</u><u> </u><u>are</u><u>:</u>

<u>Used</u><u> </u><u>for</u><u> </u><u>cooking</u><u> </u><u>purpose</u><u> </u><u>in</u><u> </u><u>microwave</u><u>.</u>
<u>Used</u><u> </u><u>in</u><u> </u><u>RADAR</u><u> </u><u>system</u><u> </u><u>for</u><u> </u><u>aircraft</u><u> </u><u>navigation</u><u>.</u>
<u>Used</u><u> </u><u>in</u><u> </u><u>communication</u><u>.</u>

2.

Solution given;

power [P]=100W

Current [I]=5A.

Voltage [V]=?

we have

P=IV

100=5*V

V= $\frac{100}{5}$ =<u>2</u><u>0</u><u>V</u>

<u>the voltage of the battery used in the </u><u>car</u><u> </u><u>is</u><u> </u><u>2</u><u>0</u><u>V</u><u>.</u>

8 0

3 years ago

Read 2 more answers

A driver traveling at 40 m/s slams on his brakes the vehicle completely stops in five seconds how far to the vehicle go while st

lara [203]

Answer: 100 m

Explanation:

Initial speed(u) = 40 m/s

Final speed(v) = 0 m/s

Acceleration = v-u/t

=> 0-40/5

=> 8 m/s^2

Displacement= s

=> 2as = v^2-u^2

=> 2(-8)(s) = 0 - (40)^2

=> -16s = -1600

s = 100 m

We can say the vehicle move 100 meters before stopping.

3 0

3 years ago

Read 2 more answers