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A 1300-{ kg} car rolling on a horizontal surface has speed v = 60km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2m . What is the spring stiffness constant of the spring?
A rectangular loop of wire with length L = 29.5 cm and width W = 16.7 cm carries a current I1 = 1.92 A. What is the magnitude of the net force on the loop
A man stands on a frictionless platform that is rotating with an angular speed of 3.3 rad/s; his arms are outstretched and he holds a weight in each hand. find the change of the kinetic energy when the man moves his arms
In the Millikan oil-drop experiment illustrated in the figure below, an atomizer is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates, Estimate the radius of an oil drop of density 854 kg/m3 for which it..
A boy and girl are balanced on a massless seesaw. The boy has amass of 75kg and the girl has a mass of 50kg. If the boy sits 2metres from the pivot on one side of the seesaw where must the girlsit on the oppsite side.
A body is dropped from rest and falls freely. Determine the position and speed of the body after 1.0, 2.0, 3.0 and 4.0 s have elapsed
What makes up the Total Energy of a System? Mathematically what similarities do Gravitational Potential Energy and Elastic Potential Energy have with each other?
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
A 6 cm diameter conducting loop with resistance of 10m\Omega is placed perpindicular to a variable magnetic field B. Determine the current and its direction induced in the loop
One way to decrease your use of fossil fuels is to heat your water via solar radiation. A solar water heater runs cold water through dark, radiation absorbing tubing.
An elevator moves downward in a tall building at a constant speed of 3.80 m/s. Estimate the highest floor from which the bolt can fall
A 2-mol ideal gas system undergoes an adiabatic process where it expands, How much heat is received by the system
question1a rock is projected upward from surface of the moon at time t 0.0 s with a velocity of 30 ms.nbspthe
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