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the driver of a train moving at 20 m/s applies the brakes when it passes an amber signal. The next signal is 1km down the track and the train reaches it 75 s later. Find the train's acceleration and its speed at the next signal.
Illustrate what elements of the marketplace in which Mega Tech operates led the organization to believe that project management would improve its operations?
A bullet is shot vertically up with v0 from ground level. The definition of vertical is by a plumb bob, find the location where the bullet returns to the ground
A battery charger is connected to a dead battery and delivers a current of 3.7 A for 2.1 hours, How much energy is delivered to the battery
Two charged bodies exert the force of .145N on each other. If they are moved so that they are one fourth as far apart, what force is exerted.
An astronaut in a satellite says she can just barely resolve two point sources on the Earth, 110km below. Assume λ=540nm, and the pupil diameter of the astronaut's eye to be 5.20mm.
A hare and a tortoise compete in a race over a straight course 0.90 km long. The tortoise crawls at a speed of 0.300 m/s toward the finish line, For how long in time was the hare stationary
A spherical weather balloon is filled with hydrogen until its radius is 3.00 m. Its total mass including the instruments it carries is 15.0 kg. Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3. N
An infinitely long line of charge has a linear charge density of 8.00×10-12 C/m. A proton is at distance 16-cm from the line and is moving directly toward the line with speed 1200 m/s.
In reaching her destination, a backpacker walks with an average velocity of 1.19m/s, due west. This avg velocity results bc she hikes for 5.7 km with an avg velocity of 2.18 m/s due west, turns around, and hikes with an avg velocity of 0.511m/s du..
The value of acceleration found in (b)iii, along with numerical values for the given quantities and your answer to (c), can be used to determine the rotational inertia of the pulley. The pulley is removed from its support and its rotational inerti..
A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
An LC circuit with a 4.90 pF capacitor oscillates in such a manner as to radiate at a wavelength of 3.50 m. What inductance is in series with the capacitor
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