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Paraphin [41]
3 years ago
9

LOOK AT THE PICTURE!! 3 Please answer properly

Physics
2 answers:
Bogdan [553]3 years ago
8 0
Highest point  ( A ) ...

Not moving       ==> zero kinetic energy
Highest altitude ==> maximum potential energy
                               ------------------------------------       
Total energy      ==> all potential


Halfway up, halfway down  ( B ) ...

Half-altitude  ==>  half of total energy is potential 
Moving         ==>  some kinetic energy; must be half of total
                          -----------------------------------------
Total energy  ==>  same total; half potential, half kinetic


Lowest point  ( C ) ...

Minimum altitude  ==>  zero potential energy 
Fastest speed      ==>  maximum kinetic energy
                          -----------------------------------------
Total energy         ==>  same total; no potential, all kinetic
babunello [35]3 years ago
4 0
The total energy at A, B and C is constant and does not change.

At A, all the energy is potential energy. It gets converted partially to kinetic energy at B and is completely converted to kinetic energy at C. At C, all the energy is kinetic energy.
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Plz answer my question below....
katrin2010 [14]
It should be YY or Yg
7 0
3 years ago
Describe the forces that act on a skydiver before
MrRissso [65]

Answer:

<em>Before the parachute opens: Immediately on leaving the aircraft, the skydiver accelerates downwards due to the force of gravity. There is no air resistance acting in the upwards direction, and there is a resultant force acting downwards. The skydiver accelerates towards the ground.</em>

<em>Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward. An upward net force on a downward falling object would cause that object to slow down. The skydiver thus slows down.</em>

<h3>I HOPE THIS WILL HELP YOU IF NOT THEN SORRY</h3>

HAVE A GREAT DAY :)

8 0
3 years ago
A circular wooden loop of mass m and radius R rest on a flat horizontal friction less surface. A bullet, also of mass m, and mov
bearhunter [10]

Answer:

w = vR/3

Explanation:

The centre of mass of the loop to bullet system is given by D / 4 from centre of loop, which is equivalent to R / 2 from its centre.

From the principle of conservation of linear momentum , we have

m*v = 2*m* Vcm

Where v = velocity of bullet, Vcm = velocity of wood

Hence, we have  

Vcm = v2

Also, from the conservation of angular momentum about the centre of mass.

M*V*(R/2) = Ic*w - equation (I)

where Ic = moment of inertia and w = angular velocity

Ic for a ring is given by mr^2 + m(r/2)^2

Ic of a bullet is given by m(r/2)^2

Hence, the moment of inertia of the system  is given by the summation of the two moments of inertia Ic(ring) + Ic(bullet) which gives

Ic(system) = 3*m*R^2/2

Substituting back into equation (I), we have

m*v*R^2=3*m*R^2*w/2

Hence, we obtain w =vR/3

w=v3R

4 0
3 years ago
What is the energy of a photon with a frequency of 3. 6 × 1015 hz? planck’s constant is 6. 63 × 10–34 j•s.
GrogVix [38]

Answer:

2.029×10^-18 J

Explanation:

E=hv

so

E=(3.06×10^15)*(6.63×10^-34)

E=2.029×10^-18 J

3 0
2 years ago
Evaporating water produces gaseous water. What has occurred during this process?​
Katyanochek1 [597]

Answer:

Heat has accelerated water atoms enough to break the surface tension which leads the liquid to turn into a gas

Explanation:

The state of a substance depends on the distribution of its atoms, therefore any atmosphere change (in this case heat) enough to change the atoms Distribution results in a change of state.

brainliest please ;)

3 0
3 years ago
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