Ask question

Ask question

All categories

2 years ago

15

A ball is projected with an angle o from the top of a tower of height h with velocity vo. The ball strikes the ground after a ce

rtain time t, then show a vo sino 2gh 1 + 1 + vo-sin20 t/

1 answer:

Lostsunrise [7]2 years ago

5 0

Answer:

dvnuncxtumvd7ojf433f and tv36v54f vs Craig

You might be interested in

A fine-grained sedimentary rock is known as _____.

Yakvenalex [24]

The finer‐grained<span> s</span>edimentary rocks<span> are called shale, siltstone, and mudstone</span>

5 0

3 years ago

what is the geocentric model of stars and planets? a.) the belief that stars and planets revolve around the earth b.) the belief

amid [387]

a.) the belief that stars and planets revolve around the earth

Explanation:

The geocentric model of stars and planets is the belief that stars and planets revolves around the earth.

The model places the earth at the center of the system.

Geo - earth ; centric - center
This was the original school of thought about the way the earth relates to other bodies in the universe.
This model was replaced by the heliocentric universe in which stars are at the center and the planets revolves round them.
The idea was put forward by Nicola Copernicus

learn more:

Energy of the sun brainly.com/question/1140127

#learnwithBrainly

7 0

3 years ago

The eye is actually a multiple-lens system, but we can approximate it with a single-lens system for most of our purposes. When t

hram777 [196]

Explanation:

Given that,

The optical power of the equivalent single lens is 45.4 diopters.

(a) The relationship between the focal length and the focal length is given by:

$f=\dfrac{1}{P}$

$f=\dfrac{1}{45.4}$

f = 0.022 m

or

f = 2.2 cm

(b) We need to find how far in front of the retina is this "equivalent lens" located. It is given by using lens formula as :

$\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}$

Here, u = infinity

$\dfrac{1}{v}=\dfrac{1}{2.2}$

v = 2.2 cm

So, at 2.2 cm in front of the retina is this "equivalent lens" located.

Hence, this is the required solution.

5 0

3 years ago

Napoleon's army captured the island of San Salvador, then moved on to occupy Louisiana and close the port of New Orleans.

pickupchik [31]

A. true

Quote" Napoleon's army captured the island of San Salvador, then moved on to occupy Louisiana and close the port of New Orleans."

3 0

3 years ago

A sled of mass 15 kg slides across the ground with a friction force of 80.85 N. What is k between the sled and the ground?

Dvinal [7]

The expression for the frictional force between the sled and the ground is:
$F=k m g$
where $k$ is the coefficient of friction, m is the mass of the object and $g=9.81 m/s^2$ is the gravitational acceleration.

The friction force in our problem is F=80.85 N. The mass of the object is m=15 kg. Re-arranging the formula, we can find the value of k:
$k= \frac{F}{mg}= \frac{80.85 N}{(15 kg)(9.81 m/s^2)}=0.55$

8 0

3 years ago

Read 2 more answers