1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
qwelly [4]
3 years ago
12

A soccerball is kicked straight out from a hill at 15 m/s and lands 42m away. how tall is the hill

Physics
1 answer:
ozzi3 years ago
4 0

Answer:

The height of the hill is, h = 38.42 m

Explanation:

Given,

The horizontal velocity of the soccer ball, Vx = 15 m/s

The range of the soccer ball, s = 42 m

The projectile projected from a height is given by the formula

                             S = Vx [Vy + √(Vy² + 2gh)] / g

Therefore,

                            h = S²g/2Vx²                     (Since Vy = 0)

Substituting the values

                             h = 42² x 9.8/ (2 x 15²)

                                = 38.42 m

Hence, the height of the hill is, h = 38.42 m

You might be interested in
In which situation can you be at rest and moving at the same time?
xxTIMURxx [149]
I believe the last one about the bike is correct.
7 0
3 years ago
Read 2 more answers
Why might it be important to know your inherited traits passed down by your parents?
ExtremeBDS [4]

Answer:

health factors that could harm you or your offspring

3 0
2 years ago
How do the dark lines of an atom''s absorption spectrum relate to the bright lines of its emission spectrum?
tangare [24]

Wouldn't it be neat if an electron falling closer to the nucleus ... emitting a
photon ... actually gave out more energy than it needed to climb to its original
energy level by absorbing a photon !   If there were some miraculous substance
that could do that, we'd have it made.

All we'd need is a pile of it in our basement, with a bright light bulb over the pile,
connected to a tiny hand-crank generator.

Whenever we wanted some energy, like for cooking or heating the house, we'd
switch the light bulb on, point it towards the pile, and give the little generator a
little shove.  It wouldn't take much to git 'er going.

The atoms in the pile would absorb some photons, raising their electrons to higher
energy levels.  Then the electrons would fall back down to lower energy levels,
releasing more energy than they needed to climb up.  We could take that energy,
use some of it to keep the light bulb shining on the pile, and use the extra to heat
the house or run the dishwasher.

The energy an electron absorbs when it climbs to a higher energy level (forming
the atom's absorption spectrum) is precisely identical to the energy it emits when
it falls back to its original level (creating the atom's emission spectrum).

Energy that wasn't either there in the atom to begin with or else pumped
into it from somewhere can't be created there.

You get what you pay for, or, as my grandfather used to say, "For nothing
you get nothing."

3 0
3 years ago
Que significa gobernar​
kow [346]

Answer: conducir la política, acciones y asuntos de (un estado, organización o personas).

7 0
3 years ago
A pulling force is called what?<br> A. normal<br> B. tension<br> C. balanced<br> D. compression
joja [24]
<span>There is no special name for that. Physics is usually just concerned with "forces", and doesn't specify whether the force pushes or pulls. If you want to be more specific, you can just call it a "pulling force".
I hoped this was satisfying!:)</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which type of galaxy is too small for gravity to form it into an easily describable shape?
    15·2 answers
  • Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is
    12·1 answer
  • The average kinetic energy of the molecules of an ideal gas is directly proportional to the
    14·1 answer
  • Describe Charle’s Law and Boyle’s Law.
    5·1 answer
  • A rightward force of 4.0 N is exerted upon an object for a distance of 3.0 meters.
    14·1 answer
  • The girl in the diagram is accelerating down the hill, What is the girl’s acceleration.
    6·2 answers
  • Which statement about electromagnetic waves is true?
    13·2 answers
  • An ultrasound machine is being used to try to identify potential kidney stones. The machine is working properly and no kidney st
    11·2 answers
  • A 12.0 kg object is stationary on a surface that is inclined 30.0° relative to the horizontal. The coefficient of friction is 0.
    12·1 answer
  • An object 2.2 kg object accelerates at 4.0 m/s^2. What is the mass of the object?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!