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1. Imagine holding the above plastic block under water. When released, what is the upward acceleration of the block? (use g = 10 m/s2)
High-speed stroboscopic photographs show that the head of a 184 g golf club is traveling at 35.2 m/s just before it strikes a 45.9g golf ball at rest on a tee
A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A 1.0-kg block of ice is initially at 0°C. Heat is added to this system, and the entropy is increased by 357.1 J/K. How much of the ice melts
An insulated Thermos contains 145 cm3 of hot coffee at 89.0 °C. You put in an 11.0 g ice cube at its melting point to cool the coffee. By how many degrees (in Celsius) has your coffee cooled once the ice has melted and equilibrium is reached? Treat c..
The springs of a 1300kg car compress 5.6mm when its 70kg driver gets into the driver's seat. what will be the frequency of vibrations
A 52% efficient device uses chemical energy to generate 570J J of electric energy. How much chemical energy is used
The drawing shows three identical rods (A, B, and C) moving in different planes. Find the magnitude of the motional emf for the rods
A rectangular fish tank measures 30 cm by 65 cm by 40 cm high. What is the total force of the water on the bottom
An electron, starting from rest, accelerates through a potential difference of 413 V. What is the final de Broglie wavelength of the electron, assuming that its final speed is much less than the speed of light
peg is located a distance h directly below the point of attachment of the cord. If h = 0.90 L, illustrate what will be the speed of the ball when it reaches the top of its circular path about the peg?
When the density of the string is changed, say increased, what is the effect on the frequency required to obtain a given number of loops
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