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A 6 centimeter long spring is attached to the ceiling. When a 1.6 kilogram mass is hung from it, the spring stretches to a length of 21 centimeter.
Determine what is the spring constant k?
Determine how long is the spring when a 3.4 kilogram mass is suspended from it?
Assume you are stopped in your car at a traffic light, and an ambulance approaches you from behind with a speed of 12 m/s. The siren on an ambulance produces sound with a frequency of 600 Hz. What frequency will you hear?
A 71-kilogram person stands on a bathroom scale in an elevator. Find what does the scale read if the elevator is ascending with an acceleration of 3.0 m/s2
Estimate the number of water molecules in a 250cm^3 glass of water. Each molecule dimensions is about 3.0 x 10^-10m.
A block of wood weighs 160 Newton and has a density that equals .60 that of seawater. Find what additional downward force is required to sink it in seawater
question1two window washers bob and joe are on a 3.00 m long 380 n scaffold supported by two cables attached to its
Two vehicles are approaching an intersection. One is a 2450-kg pickup traveling at 13.8 m/s from east to west (the ?x-direction), What are the magnitude and direction of the net momentum
A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, what is the average force exerted on the parachutist by the ground
What is the angular displacement, angular velocity and angular acceleration of the second hand on a clock over the time interval in which it moves from the 12 to the 6
A car with a total mass of 1.92*10^3 kg has wheels of radius 31.0 cm and moment of inertia 0.830 kg · m2. What is the car's translational kinetic and rotational energy
Find out the magnitude of the electric field at a point P on the y-axis 0.529 m from the origin. The value of the Coulomb constant is 8.99 × 109 N • m2/C2.
Light of wavelength 665 nm is used to illuminate normally two glass plates 12 cm in length, How many bright fringes appear along the total length of the plates
You are studying guitar strings and are able to measure a few of (but not all) the standing wave frequencies for a particular string. what is the highest possible value for the fundamental frequency
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