Ask question

Ask question

All categories

4 years ago

10

Help ASAP, will give you brainliest!

2 answers:

pantera1 [17]4 years ago

8 0

Answer:

A

Explanation:

II (the tempature of the water) should be the only changing variable as it is what the experiment is about.

Stels [109]4 years ago

5 0

Answer:

A

Explanation:

You might be interested in

if the displacement of a body is proportional to the square of time, state the nature of motion of the body

Liula [17]

Explanation:

If the displacement of an object is proportional to the square of the time taken then the body is moving with uniformly accelerated motion as it will follow Newton's second equation of motion for a particular initial velocity, which can be given by, s=ut+21at2.

hope this is helpful to you

3 0

3 years ago

Estimate the monthly cost of using a 700-W refrigerator that runs for 10 h a day if the cost per kWh is $0.20.

slamgirl [31]

Power consumed by the refrigerator is given as

$P = 700 W$

Now if refrigerator is used 10 h a day then total usage of refrigerator for 1 month will be given as

$t = 10 * 30 = 300 h$

now the total energy consumed in one month is given as

$E = P * t$

$E = 700 * 300$

$E = 210000$

$E = 210 kWh$

now it is given that cost of one kWh is $0.20

then total cost of one month is given as

$C = $0.20 * 210$

$C = $42$

7 0

3 years ago

What's the third prong on an electric plug called??

zaharov [31]

It is an extension of the grounding system

5 0

3 years ago

PLEASE HELP MEEEE <br>marking brainliest

aniked [119]

Answer:

Option C

Explanation:

Centripetal acceleration formula regarding velocity and radius is,

$a_c=\frac{v^2}{r}$

now we know the centripetal acceleration is 9 and the radius is 16 so we plug these values into our formula,

$a_c=\frac{v^2}{r}\\\\9=\frac{v^2}{16} \\\\144=v^2\\\\\sqrt{144}=v \\\\v=12\ m/s$

so velocity is 12 m/s

Now for the angular velocity, the formula of centripetal acceleration regarding angular velocity and radius is,

$a_c=rw^2$

we know the centripetal acceleration is 9 and the radius is 16 so plug these values into the formula,

$a_c=rw^2\\\\9=16w^2\\\\0.5625=w^2\\\\\sqrt{0.5625}=w \\\\0.75\ rad/s=w\\$

so angular velocity is 0.75 rad/s

8 0

3 years ago

Please Help! Multiple Choice!

attashe74 [19]

Option A 3......
... ........

8 0

3 years ago