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Question- One person drops a water balloon from rest 8 m above the ground . Simultaneously a second person throws a water balloon down with an initial downward velocity of 4 m/s. If the two water balloons hit the ground at the same time what total vertical distance did the second water balloon fall
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The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 760 N person climb before the ladder begins to slip?
An object's velocity is V =ct^3i+dj, where t is time and c and d are positive constants with appropriate units. What is the object's acceleration
Assume the coefficient of static friction between the road and the tires on a car is 0.60 and the car has no negative lift. Find what speed will put the car on the verge of sliding
A freely falling object requires 1.20s to travel the last 33.0 m before ithits the ground. From what height above the ground did it fall
you wish to design a hydraulic system so that a force put into it would be increased by a factor of 100. by what factor (d2/d1) is motion reduced in the system
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. what is the angle between the transmission axes of the filters
The resolving power of a microscope depends on the wavelength utilized. If one wished to "see" a particular type of molecule, a resolution of 1.2*10-10 m would be required.
What is the area of contact of each tire. find the coefficient of static friction between the car and track from these data.
A car rounds a circle of radius 180 m , going at 14.5 m/s. What's the car's acceleration if its speed is constant. Compute the new acceleration if the speed is increasing at a rate of 2.4 m/s^2
a block on a spring is pulled ot the right and released at t 0 s.it passes x 3.1cm at t 0.685s and it passes x
A car is approaching a reflecting wall. A stationary observer behind the car hears a sound of frequency 790 Hz from the car horn and a sound of frequency 813 Hz from the wall. What is the frequency of the car horn
An unstable particle called the pion has a mean lifetimeof 25 ns in its own restframe. What is the mean lifetime of the pions as measured in thelaboratory frame
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