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A clay ball with a mass of .35 kg has an initial speed of 4.2 m/s. It strikes a 3.5 kg clay ball at rest and the two balls stick together. The final velocity of the balls is 2.1m/s north. What is the first balls initial velocity?
The human lungs can function satisfactorily up to a limit where the pressure difference between the outside and inside of the lungs is 1/22 of an atmosphere. how far below the water can she swim
How does the intensity change as position increases? What is the position value corresponding to the highest light intensity, What is the relationship between light intensity and position
Two parallel planar mirrors face each other. An object is placed between them at a distance x from one and 3x from the other. how far away are the second-order images from the object, in terms of x
A suitcase weighing 228N is at rest on the floor of a hotel lobby. The co-efficient of static friction between the suitcase and the floor is 0.49, and the coefficient of kinetic friction is 0.313. With what least amount horizontal force must a bel..
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.9 g, which includes fuel mass of 13.0 g. The duration of its burn is 1.90 s. find What is the average exhaust speed of the engine
A long solenoid has 1.56e+3 turns in length of 40.0 cm. What current has to flow through the solenoid in order to generate a magnetic field
If you start with two sinusoidal waves of the same amplitude traveling in phase on a string and then somehow phase-shift one of them by 12.50 wavelengths
The semiconducting compound CdTe is widely used for infrared light emmiting diodes (LEDs). find the frequency of light emitted by a CdTe LED
A bat strikes a 0.145-kg baseball. Just before impact, the ball is traveling horizontally to the right at 60.0m/s, Find the vertical component of the average force on the ball
The organ pipe in the figure(Figure 1) is 2.80 long, What is the fundamental frequency of this pipe
q1. what effect will increase in temperature from 25 degree celsius to 32 degree celsius of the metal metre stick have
Ship A is located 4.0 km north and 2.5 km east of ship B. Ship A has a velocity of 22 km/h toward the south, what is the least separation
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