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Vector A is directed along the positive y-axis and has magnitude 5.0 units. Vector B is directed along the negative x-axis and has magnitude 7.0 unit. (a) What are the magnitude and direction of A + B? (b) What are the magnitude and direction of A - B? *directions counterclockwise from the +x-axis (c) What are the x- and y-components of B - A?
A rod (length = 80 cm) with a rectangular cross section (1.5 mm x 2.0 mm) has a resistance of 0.20 ohms. What is the resistivity of the material used to make the rod
A 0.144 kg baseball leaves a pitcher's hand at a speed of 22.5 m/s. If air drag is negligible, how much work has the pitcher done on the ball by throwing it
A 3.5 m long horizontal rod has two forces applied to it. One on the far left corner with a force of 4N at 60 degrees downward, find the magnitude and direction of the force in the pin
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren perceived by the observer
A 3.50-µF capacitor is fully charged by being connected to a 12.0-V battery. The fully charged capacitor is then connected to a 0.330-H inductor. Calculate the maximum current in the inductor
The speed of an arrow fired from a compound bow is about 75 m/s. An archer sits astride his horse and launches an arrow into the air, what is the arrows range
A 145 g block hits a 115 g block initially at rest on a horizontalsurface. After impact they stick together and slide 9.01 m beforecoming to rest. The acceleration of gravity is 9.8 m/s^2. If thecoefficient of friction between blocks and surface is 0..
A cab driver picks up a customer and delivers her 2.70 km away, driving a straight route. Find the lengths of the acceleration and deceleration phases
A 2.0 ð‘˜ð‘" package is released on a frictionless ramp inclined 53.1 ° above the horizontal, What is the speed of the package just as it reaches the spring
When the temperature of a metal cylinder is raised from 0.0°C to 113°C, its length increases by 0.26%. Find the percent change in density
A microscope with a tube length of 200 mm achieves a total magnification of 400x times with a 20x times objective and a 20x times eyepiece. How far is the sample from the objective lens
hanging mass has a mass, m = 19g, the wheel has a radius, R = 0.10m, and the wheel and axle has a moment of inertia, find the acceleration of the hanging mass
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