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A crane does 62,500 Joules of work to lift a boulder a distance of 25.0 meters. How much did the boulder weigh? (Hint: The weight of an object is considered to be a force if units of newtons.)
The fringes observed in a double-slit interference experiment when the two slits are illuminated by white light show dispersion of both light and color, how many bright fringes can be seen on the screen
A brick weighing 30 N falls from a height of 15 m and sinks 0.7 m into the ground. What is the average force on the rock due to the ground as it sinks into the ground
A large sponge has forces of magnitude 12 N applied in oppositedirections to two opposite faces of area 42 cm^2. What is theshear modulus of the sponge
Assume that the air temperature is 20C and that no wind is blowing. How much time would elapse if the wind were blowing toward the observer at 33.0Km/h from where the rail was struck?
A string 2.0 long with a mass of 2.6 is stretched between two fixed points with a tension of 85. Find the frequency of the fundamental on this string
Assume you take a 2.0 ×102 ohm resistor and a 6.0 µF capacitor and make a series circuit with a voltage source that has voltage amplitude 30 Volt and an angular frequency of 2.5×102 rad/s. Determine what is the impedance of the circuit
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the moment of inertia of the arm and ball
Consider pendulum formed from a meter stick pinned at the end. The center of mass (COM) is at the middle of the ruler, and the COM rotational inertial is (see Table 10.2 in text) for meter( Text is principles of physics by Serway & Jewett). When t..
What is the value of the capacitance C2 that should be added to the circuit so that the circuit will have a resonant frequency that matches the generator frequency
A ball of weight 1.5 N is thrown at an angle of 30° above the horizontal with an initial speed of 12 m/s. the net force (ignoring air resistance) on the ball is:
One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, and one end emits sound from a tuning fork. What is the speed of sound in the gas tube
The angle θ
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