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A ball is traveling horizontally over a volleyball net when a player "spikes" it, driving it straight down to the ground. The ball's mass is 0.21 kg, its speed before being hit is 6.4 m/s and its speed immediately after the spike is 21 m/s. What is the magnitude of the impulse from the spike?
A hypodermic syringe contains a medicine with the density of water. The barrel of the syringe has a cross-sectional area A = 2.60 10-5 m2, and the needle has a cross-sectional area a = 1.00 10-8 m2.
The air pressure above the liquid in figure is 0.532 atm. Determine the air pressure in the bubble suspended in the liquid
Airplane emf A Boeing KC-135A airplane has a wingspan of 39.9m and flies at constant altitude in a northerly direction with a speed of 750km/h .If the vertical component of the Earth's magnetic field is 5.3×10^?6T , and its horizontal component is..
a workman on the scaffolding outside one of the science classrooms drops a wrench. a physics student bored with the
A 12 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 16 kg package on the ground, What is the magnitude of the least acceleration the monkey must have if it is to lift the package off the ground
A 16 µF capacitor and a 23 H inductor are connected in series with a 60 Hz source whose rms output is 119 V. Find the voltage drop across the inductor
q1. a 0.0150-m wire oriented parallel between the poles of an electromagnet carries a direct current of 9.5 a. the
what is the new value of energy stored in it. What is the force that is acting between them.
An air-filled toroidal solenoid has a mean radius of 10.0 cm and a cross-sectional area of 7.00 cm^2. How many turns does the winding have
A system does 4.3 x10^4 J of work, and 7.7 x10^4 J of heat flows into the system during the process
A body is placed on a plane that is incline at an angle of 35degrees to the horizontal, Determine the component of mg parallel to the surface
A 2.7 kg object oscillates with simple harmonic motion on a spring of force constant 510.0 N/m. What is the total energy of the object and the spring
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