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A tennis player tosses a tennis ball straight up and catches it after 3.0 s.
A) What is the magnitude of the acceleration of the ball while it is in flight?
B) What is the velocity of the ball when it reaches its maximum height?
C) Find the initial velocity of the ball.
D) Find the maximum height it reaches.
Consider the mass on aspring system in Figure P11.20. Three identical springs, What is the frequency of this simple harmonic oscillator
In compressing the spring in a toy dart gun, 0.9 J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.05 kg, What is the dart's speed
We all know that your homes have primary voltage Vp 120V that comes to them, What type of transformer is needed to reduce the voltage
A 12.0 kg box resting on a horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, After the system is released, find the horizontal tension in the wire
Light moving from glass to air changes wavelength from 448.5 nm to 653.7 nm. find the frequency of the light in air
The density of the sea water is 1025 kg/m3. The density of ice is 917 kg/m3. Explain how high does the top of the ice block float above the water level?
A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror.
q1.a thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates
An iron tower in is 372 meters tall on a cold day (T = -7.1 degrees Celsius). What is its height of the tower on a hot day
Large conventional electromagnets use water cooling to prevent excessive heating of the magnetic coils. ow many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 50 degree C
In a cloud chamber experiment, a proton enters a uniform 0.250 T magnetic field directed perpendicular to its motion. How fast was the proton moving
A 950-kg car strikes a huge spring at a speed of 20 m/s, compressing the spring 5.5 m. What is the spring stiffness constant of the spring
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