Its really confusing me...................if warm air expands then it will be cooled as it expands thus there is warming. PLz help and WHY does warm air expand by the way??-There are MULTIPLE types of
If two objects at rest and at the same height begin a free fall one second apart how long after the first object begins to fall will the two objects be 10 meters apart?
This is how I solve the proble
a. The force of the floor on the ball is greater.b. The force of the ball on the floor is greater.c. The forces are equal.-Im going to be awesome and answer an already answered question.
C.
For every
Find the acceleration reached by each of the two objects shown in figure below if the coefficient of kinetic friction between the 7.00 kg object and the plane is 0.350.
Figure: http://www.webassign.
Just a quick question. Which is correct? WHAT is the radius or HOW MUCH is the radius?-What is the radius.
Its like asking what is the length of a ruler, as compared to asking how long is it.-The rad
A car travels up a hill at a constant speed of 37 km/h and returns down the hill at a constant speed of 66 km/h. Calculate the average speed for the whole trip-By definition ,the average speed is the
A drop of water falls with no initial speed from point A of a
highway overpass. After dropping 6 m, it strikes the windshield at
point B of a car which is traveling at a speed of 100 km/h on the
ho
I was trying to do this problem, but I got t negative, so I went back from the beginning and looked for my errors, but I couldnt find one. Can anyone tell me what I did wrong ? Thanks
You drop a ball
Suppose a gangster sprays Supermans chest with 3 g bullets at the rate of 100 bullets/min, and the speed of each bullet is 500 m/s. Suppose too that the bullets rebound straight back with no change in
A space traveler weighs 640 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?-W = w (r/R)^2 (M/m) = w (1/3)^2
There are four fundamental forces in nature. They are the strong nuclear and weak nuclear, electro-magnetic, and gravity forces. These all work with and against each other as the universe tries to gai
You want a car to start from rest and then be traveling with a velocity of 1m/s after it has gone a distance of 0.75 meters. Give an example of a car and applied force that will cause this to happen.
At the beginning of a new school term, a
student moves a box of books by attaching a
rope to the box and pulling with a force of
F = 97.4 N at an angle of 62 degree, as shown in the
figure.
The accel
The question I have says that a model rocket is being launched with an acceleration of 12 m/s^2 until it reaches a height of 26m.Then it asks for the maximum height.Since its a rocket being launched,
At what minimum speed must a roller coaster be traveling when upside down at the top of a circle if the passengers are not to fall out? Assume a radius of curvature of 9.2 m.m/s-Providing the passenge
