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An automotive starter motor is designed to draw a current of 100A from an ideal voltage source of 12V. The starter is powered by a real car battery with an internal resistance of 0.01 ohms What is the current drawn by the starter? What is the terminal voltage of the battery when the starter is engaged? What is the power generated by the battery when the starter is engaged? What fraction of the generated power is delivered to the starter? Will this car be always able to start if it takes 1000 Watts of power to turn the engine over in winter condition?
A motorcycle has a constant speed of 30.0 m/s as it passes over the top of a hill whoseradius of curvature is 118 m. Find the magnitude of the normal force that acts on the cycle
Two converging lenses are separated by 23.60 cm. The focal length of each lens is 11.00 cm, Determine the final image distance relative to the lens on the right
A capacitor with its plates separated by paper stores 4.6 nC of charge when it is connected to a particular battery. How much charge does that capacitor store
Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. Determine the wavelength of the second source
An air-filled parallel plate capacitor with a plate spacing of 1.70 cm has a capacitance of 4.70 ?F. Calculate the dielectric constant of the inserted material
The right figure shows a force of magnitude F = 12.0 N applied to an 8.00 kg block at a downward angle of ? = 30.0°. find the magnitude of the frictional force on the block
q1. a slingshot consists of a light leather cup attached between two rubber bands. it takes a force of 26 n to stretch
From the point (3000,4000,0) the next destination is at the point (-2000,16000,0) a force of 2 N is applied in the direction of π radians. An appropriate force is applied in the direction of π/2 radians so that the resultant vector is in the direc..
A wheel of diameter 24.0 cm is constrained to rotate in the xy plane, about the z axis, which passes through its center. What is the torque about the rotation axis at this instant
Westerly winds coming off the Pacific Ocean rise over the Rocky Mountain, which rise to a height of approximately 15,000 ft (580 hPa). The air on the western side of the mountain range is at 800 hPa (T = 70F, r = 0.75), and will subside on the easter..
If astronauts could travel at v = 0.910c, we on Earth would say it takes (4.20 / 0.910) = 4.62 years to reach Alpha Centauri, 4.20 light-years away. How much time passes on the astronauts' clocks
A drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at ? = 48°. What is the refractive index of the liquid
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