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A 52.5 g ball movesat 32.5 m/s. If its speed ismeasured to an accuracy of 0.15%, what is the minimum uncertainty in its position?
m
A block with mass m = 7 kg is projected up a rough incline angled at θ = 34 degrees to the ground with a speed of v = 5.1 m/s. Just after release, a small booster strapped to the block ignites, providing a constant thrust of T = 110 N as the block..
A 1300- {rm N} crate slides 15- {rm m} down a ramp that makes an angle of 35^circ with the horizontal. If the crate slides at the constant speed, how much thermal energy is created.
A 2.0g lead bullet at 0 C is fired into a large block of ice at 0C, in which it becomes embedded. What speed would result in the bullet being melted
A large electromagnet coil is connected to a 118 -Hz ac source. The coil has a resistance 450 ohms, What is the inductance of the coil
Sam, who's mass is 79 kg, takes off across level snow in his jet powered skis. The skis have a thrust of 204 N and a coefficient of kinetic friction on snow of 0.1. Unfortunatately the skis run out of fuel after only 13 s.
The intrinsic impedance and the wavelength of a uniform plane wave traveling in an unknown dielectric at 3 GHz are measured to be ~ 194 Ω and ~ 5 .14 cm respectively. Determine the constitutive parameters (i.e. εr, and μr) of the material.
A thin, uniform rod has length L and mass M . Calculate the magnitude of the gravitational force the rod exerts on a particle with mass m
question1an arrow is fired with a speed of 18.0 ms at a block of styrofoam resting on a smooth surface. the arrow
A locomotive accelerates a 25-car train along a level track. Every car has a mass of 7.6 ? 104 kg, What is the tension in the coupling between the first car and the locomotive
A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 586 N. As the drawingshows, she is closer to the left cliff than to the right cliff,with the result that the tensions in the left and right sid..
A plate carries a charge of -2.0 microcoulombs while a rod carries a charge of 2.5 microcoulombs. How many electrons should be transferred from the plate to the rod, so that both objects have the equal charge.
You are standing 5 m from a tractor when the operator starts it ip the intensity is 3 x10^-5 W/m^2. How much did the sound level change
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