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Physics Interactions Help

Physics: Interaction diagrams?

Please help. It is asking me to draw interaction diagrams describing the situations.
1) A bat hits a ball.
2) A massless string pulls a box across the floor. Friction is not negligible.


What am I suppose to do? and how do I go about doing it?
thanks

Physics Matter and Interactions Help!!!?

I can't seem to figure out this problem because when I try and use the momentum principle, I need the mass!! Please someone clarify what I need to do-you also don't have to tell me the answer, but I would might need to know how to set it up!!! Thanks!!

A ball is kicked from a location < 6, 0, -7 > (on the ground) with initial velocity < -10, 17, -2 > m/s. The ball's speed is low enough that air resistance is negligible.

What is the velocity of the ball 0.4 seconds after being kicked? (Use the Momentum Principle!)


In this situation (constant force), which velocity will give the most accurate value for the location of the ball 0.4 seconds after it is kicked?

The final velocity of the ball?

The arithmetic average of the initial and final velocities.

The initial velocity of the ball.


What is the average velocity of the ball over this time interval?

Use the average velocity to find the location of the ball 0.4 seconds after being kicked:

Physics interactions help!?

In which of the following situations is there observational evidence for significant interaction between two objects? How can you tell? Choose all that applies.

a) A baseball that was hit by a batter flies toward the outfield.

b) A communications satellite orbits the Earth.

c) A charged particle leaves a curving track in a particle detector.

d) A space probe travels at constant speed toward a distant star.

e) A ball bounces off a wall with no change in speed.

Electric-Circuit Interaction Physics Help?

The questions states as follows: "What variable or variables can influence the electric-circuit interaction? What is your evidence?"

Thanks in advance for any help, if you only know the first answer, that's alright; I believe I might be able to decipher the reason. Thank you again in advance.

I need help on physics. Gravitational Interactions?

Gravitational attraction
F = G m₁m₂/r²
G = 6.67e-11 m³/kgs²
m₁ and m₂ are the masses of the two objects in kg
r is the distance in meters between their centers (center of mass)
earth radius 6,371,000 m
earth mass 5.97e24 kg

if his weight is 1/2 that on the surface, then the distance is 1/√(1/2) or √2 of the distance from the surface to the center.

√2 x 6,371,000 = 9,009,000 meters


to check that

G m₁m₂/r1² = 2G m₁m₂/r2²
1/r1² = 2/r2²
r2² = 2r1²
r2²/r1² = 2
r2/r1 = √2


2) the mass increase causes the field to go up by 4. The radius doubling causes the field to go down by 2² = 4. so field is unchanged.

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Physics help?

Two 0.56-kg basketballs, each with a radius of 20 cm , are just touching. How much energy is required to change the separation between the centers of the basketballs to 1.4 m ? (Ignore any other gravitational interactions.) How much energy is required to change the separation between the centers of the basketballs to 11 m ? (Ignore any other gravitational interactions.)

HELP WITH PHYSICS PROBLEM?

Interactions between the atoms and molecules of the Earth’s atmosphere can ionize some of the particles
and create electric fields in certain regions. These electric fields can be measured by sensors aboard
weather balloons and other devices. For this problem, let’s assume the electric field in a certain region
of the Earth’s atmosphere is directed vertically downward. At an elevation of 300 m, the electric field is
measured to have a strength of 50 N/C, and at an elevation of 200 m, the electric field has a strength of
500 N/C. Let’s consider a cubic volume of space occupying the region of space where the electric field
exists. Each edge of the cube has a length of 100 m, with one face of the cube lying in a horizontal
plane at an elevation of 200 m, and the opposite face of the cube lying in a horizontal plane at an
elevation of 300 m. What is the net electric charge contained in this cubic volume of space? (Ignore the
curvature of the Earth in this problem.)

Who or what can help me improve in physics?

Forget the math!!!! Forget the equations!!! Focus on the physics!You have a ball. You can throw a ball. The ball has a velocity. The ball has an acceleration because its velocity is not always one value (the ball eventually stops). The accelerations come from gravity and air resistance.You have current loop in a magnetic field. The current loop with spins, flies around, or both. The linear motions come from forces. The rotations come from torques.Every physics class teaches you the physics about various interactions. The class also teaches you the math to quantify the physics. There are only a few important things you learn in low-level physics. Conservation of Energy, Conservation of Momentum, And how to calculate forces and torques. That is it. You have to practice practice practice to understand how to apply the rules.

Particle physics, particle interaction principle, and spirit-physical interaction?

When it comes to a spiritual force....ALL things and possibilities are possible. Every situation- experience and or encounter will differ.....just a matter of being there at the right time, set up, and it may depend on who you are and your abilities as well. Usually there is some type of connection.

How can quantum gravity help the interactions between elementary particles?

Quantum gravity is a theory that people are trying to develop. It being a mere theory can not help the interactions between the elementary particles. Einstein’s General relativity did not help an apple detached from a tree to fall towards the Earth instead of flying into the sky and shoot for the brightest star. However, it helped us understand why the detached apple fall towards the earth and does not fly away to shoot the brightest star.Elementary particles have energy and hence they can interact gravitationally — however, the interaction is very weak as compared to electromagnetism. You can see that the even left over electromagnetic force can lift a paper hold by the gravitational force of entire planet by just using the electrostatic force in a comb to life some pieces of paper.Interactions between particles are always there regardless of whether mankind will be able to come of with a consistent theory of quantum gravity. The only thing that quantum theory of gravity will do is explain the quantum behavior of gravitational field — the same way quantum electrodynamics explained the quantum behavior of electromagnetic field.

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