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An 8.40 gram bullet has a speed of 1.13 km/s. Determine what is its kinetic energy in joules?
A cube of metal has a mass of 0.569 kg and measures 3.09 cm on a side. Calculate the density and identify the metal
What volume of helium is needed if a balloon is to lift a load of 180 kg (including the weight of the empty balloon)? the density of the air is 1.29 kg/m3
A boulder has a volume of 1 m3 and a mass of 5000 kg. what will be the effective mass of the boulder
A 47.0 g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 25.6 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. J (b) What is its speed when it is 10.0 m below..
The particles in the figure below (m1 = 1.8 kg and m2 = 3.5 kg) undergo an elastic collision in one dimension. Find the velocities of the two particles after the collision
Kathy buys a sports car that can accelerate at the rate of 4.9 m/s/s. She decides to test the car by racing with her friend Stan. At what time does Kathy overtake Stan
Consider an RC series circuit. You measure R to be 918 ? and C to be 826 nF. What will the voltage across the capacitor be at this frequency
Imagine you are an astronaut who has landed on another planet and you want to determine the free fall acceleration on that planet. In one of the experiments you decided to conduct, you use a pendulum 0.50 m long and find that the period of oscill..
A 542 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 1.9 meters. What is the speed of sound in the substance
A cork ball of mass 1.20 g is placed between two very large horizontal planes of charge. The bottom plane has a uniform charge density of +0.68 uC/m2, What is the charge on the ball
A 6.00 V lantern battery is connected to a 10.5 (ohm) lightbulb, What is the internal resistance of the battery
When a 0.045 kg golf ball takes off after being hit, its speed is 37 m/s. How much work is done on the ball by the club
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