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Two cars are (momentarily) side-by-side on the highway, moving in the same direction. Car A is moving with an initial speed of 20.0 m/s, accelerating at a rate of 5.0 m/s/s. At the time of alignment, Car B is travelling at 60 m/s and is slowing at a rate of 2.0 m/s/s.
1) Discover the time and position at which the cars will next be side by side.
2) Sketch – clearly – a graph of the position as a function of time for each car, on the same axes. Identify clearly the point at which they are initially side-by-side and once again side-by-side.
A rifle that shoots bullets at fed m/s is aimed directly at a target 83.2 meter away and level with the rifle. Compute how far below the aiming point does the bullet hit
A wire has strength 6700N and is tied to two posts in the ground 70m apart. If the wire is broke at the exact center by a force and the center was displaced by 5m what was the transverse force?
A high-voltage power line carries a current of 110 A at a locationwhere the Earth's magnetic field has a magnitude of 0.59 G andpoints to the north, 72 degrees below the horixontal.
A compound microscope has a barrel whose length is 16.3 cm and an eyepiece whose focal length is 1.3 cm. What focal length must the objective have so the angular magnification of the microscope is -250
Two small plastic spheres each have a mass of 1.9g and a charge of -60.0nC, By what factor is the electric force on a sphere larger than its weight
A child pulls a 5kg. toboggan with a 150N force 35 degrees above the horizontal 5m. How much work was done in moving the toboggan
The motion detector used in a physics lab sends and receives 49.55 kHz ultrasonic pulses. find the wavelength of the waves emitted by the motion detector
A 3700 ? (ohm) resistor and a 1.2-µF capacitor are connected in series across a generator, Determine the average power delivered to the circuit
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.620.
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train
Two metal conductors that are separated by a distance of 0.89 mm. When an electric spark jumps between them, What is the magnitude of the potential difference
A uniform solid marble rolls down a symmetric bowl, starting from rest at the top of the left side of the bowl. How far will the marble go up the right side
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