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If you dug a tunnel from the top of the earth to the bottom

assume that there is insulation to protect u from the heat but if you jumped down the at the top when you reach the bottom would you continue falling straight into space or would gravity pull you back

Help with physics questions please im desparate

a certain corner of a room is selected as the origin of a rectangular coordinate system. if a fly is crawling on an adjacent wall at a point having coordinates (5.7 m, 5.7 m) what is the distance of t

How to add and subtract vectors (with image)

This is for my physics HW. To be clear Im not asking for the answer, but rather how to do it. My teacher did a horrible job in explaining it. This is the image that comes with the problem http://oi52

Question about physics

so i got a question on a sheet for my physics homework, ill do the work myself ill just need some help with concept and formulas. so... a motorbike ar rest starts to drive and after x amount of secon

Science homework help please - physics

Could anyone help me with this question please? With full sentences because it is a practice question for an exam so it has to be clear. Two common types of machines are wedges and inclined planes. E

I need a physics genius

I have been working on this problem and I cant get the right answer for the second part, I keep on getting 8.75 and that wrong. can someone answer this? The linear acceleration of a particle is given

Does Earnshaw's theorem apply to diamagnetic materials

No.Earnshaws theorem states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges. This was fi

What does it mean if a semiconductor is in 'thermal equilibrium'

The above answer is too general-- describing thermodynamic equilibrium.Thermal equilibrium means there is a well-defined and constant temperature for the system and its (local) environment.-A system i

What is the velocity, v

three blocks x,y and z of masses m, 2m and 3m respectively are placed on horizontal smooth plane.Block x with speed 18m/s collides and sticks with block y.Both objects collides and sticks with block z

Physics Help-Car Crash Opposing Forces

Hi, having some trouble with a problem, here it is, followed by what I tried...which was wrong...thank you for your help An automobile of mass 3000 kg is driven into a brick wall in a safety test. Th

What would happen if you absorb a lot of microwave radiation from a microwave oven

Heat, your body gets warm. And your body has ways to compensate for that, for example, by increase in perspiration. Cancer is not caused by microwaves. Dont forget, the microwave oven was invented

1 simple word problems.. physics experts please help.

A new sport car has a drag coefficient of 0.29 and a frontal area of 20ft^2, and is traveling at 100 mi/h. How much power is required to overcome aerodynamic drag if p = 0,0002378 slugs/ft^3? Please

What is mirror matter in physics

In physics, mirror matter, also called shadow matter or Alice matter, is a hypothetical counterpart to ordinary matter. Modern physics deals with three basic types of spatial symmetry: reflection, rot

What is the impact speed when a car moving at 200 km/h bumps into the rear of an- other car traveling in the

I NEED HELP I CANT DO PHYSICS FOR MY LIFE-Since they are going in the same direction, the impact speed is: 200 km/h - 73 km/h = 127 km/h-We need help aswell - the whole question please. That 200 kph

A soccer player kicks a rock horizontally off a 40m high cliff onto a pool of water.

If the player hears the sound of the splash 3s later, what was the initial speed given to the rock?Assume the speed of sound in air is 343m/s.-Time for rock to hit water = sqrt. (2h/g), = 2.857 secs.
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