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A sports car accelerates in third gear from 48.5 km/h to 84.3 km/h in 3.8 s.
1. Determine what is the average acceleration of the car?
2. If the car maintained this acceleration after reaching 84.3 km/h, how fast would it be moving 2.0 seconds later?
Three forces acting on an object are given by Force 1 = (?1.5i + 5.50j) N, Force 2 = (4.85i ? 1.9j) N, and Force 3 = (?41.5i) N. What are the velocity components of the object after 17.0 s
A proton is shot at 5 × 107 m/s toward a gold atom, with a mass 197 times that of the proton, What is the recoil speed of the gold nucleus
The band gap of the semiconductor gallium arsenide (GaAs) is 1.43 eV , and the bandgap for the semicondcutor aluminum gallium arsenide (AlGaAs) is 2.06 eV. find the maximum wavelength absorbed by GaAs
A cannonball launched with an initial velocity of 131 m/s at an angle of 40° follows a parabolic path and hits a balloon at the top of its trajectory.
Draw two diagrams for the situation where a moving train (with initial speed v0) collides elastically with a target train that is not intially moving, Show that the final velocity of each train will be:
A typical compact disc stores information in tiny pits on the disc's surface. What's the frequency of electromagnetic waves that have a wavelength equal to the typical CD pit size
a boy hears an eco of his own voice from a distant hill after 1s. The speed of the sound is 340m/s. What is the distance of the hill from the boy
Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. The plates are connected to a 11 V power source and allowed to fully charge.
A piano wire with mass 3.45g and length 85.0cm is stretched with a tension of 31.0N. Calculate the average power carried by the wave
A 5-kilogram block is fastened to a vertical spring that has aspring constant of 1,000 newtons per meter. A 3-kilogram blockrests on top of the 5-kilogram block. the blocks are nw pushed down and released so that they oscillate.
An explorer is caught in a whiteout (in which the snowfall is therefore thick that the ground cannot be distinguished from the sky) while returning to base camp. Obtain how far must he now travel to reach base camp
Calculate the position that a lens should be placed in order to achieve the maximum magnification. The length between the object plane and the image plane is 50cm and are fixed ( meaning they are restricted). Only the lens can be moved. The focal ..
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