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A spring k=600N/m is placed in a vertical position with its lower end supported by a horizontal surface. A2 Kg block that is initially 0.40m above the upper end of the spring is dropped from rest onto the spring . What is the kinetic energy of the block at the instant it has fallen 0.50m (compressing the spring0.10m)?
Determine the coefficient of kinetic friction between the crate and surface.
You have a spring attached to the bottom of a container. The spring is aligned vertically. The container is filled with water (density 1.0 x 103 kg/m3). How much does the block compress the spring
Water is flowing in a drainage channel of rectangular cross-section. At one point, the width of the channel is 12 m, the depth of water is 6.0 m, What is the speed of the flow at the second point
a cannon sends a projectile towards a target a distance1420m away. The initial velocity makes an angle 21 degrees with thehorizontal. the target is hit. How high is the highest point of trajectory
A hypodermic syringe contains a medicine with the density of water (see figure below). The barrel of the syringe has a cross-sectional area of 2.50 x 10^-5 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm.
question a sinusoidal voltage having a maximum amplitude of 625 v is applied to the terminals of a 50 ohm resistor.
the speed of sound in the air inside a 0.640-m long gas column is 340 ms. what is the fundamental resonant frequency of
When two identical ions are separated by a distance of 6.3×10?10m , How many electrons are missing from each ion
if the temperature of an ideal gas is doubled while its pressure is tripled, by what factor does its volume change
Only two forces act on an object (mass = 2.70 kg), as in the drawing. (F = 63.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object.
Two buckets of nails are hung one above the other and pulled up to a roof by a rope. Each bucket of nails has a mass of 5.0kg. The action-reaction force between the buckets is 60N. Calculate the acceleration and the force applied by the worker lif..
how fast does it move after the bullet emerges. The critical angle of refraction for calcite is 68.4^0 when it forms a boundary with water. use this information to find the speed of light in calcite.
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