Ask question

Ask question

All categories

3 years ago

12

what do you call the curved, upper surface of water that commonly appears when using a graduated cylinder? Describe what causes

this.

1 answer:

zloy xaker [14]3 years ago

7 0

Meniscus, I believe? not sure why it forms though, sorry

You might be interested in

Drosera magnifica is an organism that was first discovered in 2015.

mestny [16]

Answer:

The correct answer is - Plantae.

Explanation:

Drosera m<em>agnifica</em> is discovered in 2015 for the first time and the characteristics this organism's cell shows are -

- permanent vacuoles

- surrounded by cellulose layer

Vacuoles are present in both Plantae and Animalia kingdom of the eukaryotic organism but in animal cells, there are small and numerous vacuoles present and they are not permanent whereas in plant cells vacuoles are present permanently.

The cell of an animal cell has no surrounding layer other than cell membrane while in the plant cell there is a supporting and protecting layer of cellulose cell wall present.

On the basis of the given characteristics, it is confirmed that the Drosera magnifica belongs to Plantae kingdom.

3 0

2 years ago

A ball is dropped from rest from a height h above the ground. another ball is thrown vertically upwards from the ground at the i

Darya [45]

The position of the first ball is

$y_1=h-\dfrac g2t^2$

while the position of the second ball, thrown with initial velocity $v$ , is

$y_2=vt-\dfrac g2t^2$

The time it takes for the first ball to reach the halfway point satisfies

$\dfrac h2=h-\dfrac g2t^2$

$\implies\dfrac h2=\dfrac g2t^2$

$\implies t=\sqrt{\dfrac hg}$

We want the second ball to reach the same height at the same time, so that

$\dfrac h2=v\sqrt{\dfrac hg}-\dfrac g2\left(\sqrt{\dfrac hg}\right)^2$

$\implies h=2v\sqrt{\dfrac hg}-g\left(\dfrac hg\right)$

$\implies h=v\sqrt{\dfrac hg}$

$\implies v=\sqrt{hg}$

8 0

3 years ago

Help not to sure with this one need help plz asap

DiKsa [7]

A is the answer for the problem

4 0

2 years ago

Read 2 more answers

Which division of time on the geologic time scale is the shortest?

Scrat [10]

Explanation:

In geology, there are 5 divisions of time on the time scale. They are:

eons
eras
periods
epochs
ages

Eons are the largest time period, while ages are the shortest time period. The rest of the above listed are in between the two.

8 0

2 years ago

a 1 gram spiders sits on a platform rotating at 78 rpm. the spider is 15 cm from the centre disk. find the speed of the spider

olga nikolaevna [1]

The spider is traveling in a circle with radius = 15cm

The circumference of any circle = <em>2 pi (radius)</em>
The circumference of the spider's path = 2 pi (15 cm) = 30 pi cm

The spider completes a trip around this path 78 times per minute.
Its speed, relative to you, is

   (78) x (30 pi) cm/min =

   2,340 pi cm/min = 7,351.33 cm/min =

   <em> 73.5133 meter/min =</em>

   <em>4.411 km/hr =</em>

   <em>2.74 miles/hour

</em>(After the last appearance of pi,
all numbers are rounded.)<em>

</em>

8 0

3 years ago