A cylinder has a height of 5.3 cm and a diameter of 3.0 cm. What is its volume

1 answer:

3 0

Formula to find the volume of cylinder is pi×r^2×h ; r --radius ; h -- height Therefore,vol of cylinder is pi×1.5^2×5.3 = 11.925pi = 37.5 ( rounded off to 3s.f)

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An ant can travel approximately 30 meters per minute. How many meters could an ant move in 45 minutes.

Nastasia [14]

Answer:

From what I see, it's saying that every minute, the ant can move 30 meters. So how many meter would it move in 45 minutes?

30 meters = 1 min

x meters = 45 min

1 min x 45 = 45 min

30 meters x 45 = 1,350 meters

So, I believe the answer would be 1,350 meters.

hope this helps. :>

8 0

3 years ago

Superman does an exhibition run at a track meet. When he runs the 200 m

Ber [7]

Answer:

6.32s

Explanation:

Given parameters:

Length of track and distance covered = 200m

Acceleration = 10m/s²

Unknown:

Time taken to cover the track = ?

Solution:

To solve this problem, we apply one of the motion equations as shown below:

S = ut + $\frac{1}{2}$ at²

S is the distance covered

t is the time taken

a the acceleration

u is the initial velocity

The initial velocity of Superman is 0;

So;

S = $\frac{1}{2}$ at²

200 = $\frac{1}{2}$ x 10 x t²

200 = 5t²

t² = 40

t = 6.32s

5 0

3 years ago

What is the relationship between mass and weight

sergiy2304 [10]

Mass is how heavy is it, weight is the size both are the same

5 0

3 years ago

Read 2 more answers

An object is released from height of 17m. <br> The object will hit the ground approximately in

zzz [600]

$\text{Given that,}\\\\\text{Height, h = 17 m}\\\\\\\text{We know that,}\\\\h = v_0t + \dfrac 12 gt^2\\\\\implies h = \dfrac 12 gt^2\\\\\implies t^2 = \dfrac{2h}g\\\\\implies t =\sqrt{\dfrac{2h}g} = \sqrt{\dfrac{2(17)}{9.81}} = 1.87 ~ \text{sec}$