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A marble (radius 1.0 centimeter and mass 8.0 gram) rolls without slipping down a ramp of vertical height 20 centimeter. Estimate the speed of the marble when it reaches the bottom of the ramp?
A Ferris wheel with a radius of 8.1 meter rotates at a constant rate, completing one revolution every 45 sec. Determine the direction and magnitude of a passenger's acceleration when at the top of the Ferris wheel
A boulder has a volume of 1 m3 and a mass of 5000 kg. what will be the effective mass of the boulder
The fundamental physical constant of quantum mechanics, h, has played an important role in each of the three theoretical advances (those relating to the blackbody spectrum, the photoelectric effect, and the structure of the H atom).
whenever the velocity changes there is a non-zero acceleration. the change can be in only the magnitude of the velocity
A cannonball is fired from a canon at an angle of 45 degrees to the horizontal.The cannonball's initial velocity is 40 m/s. How far will the cannonball go before it hits the ground
A 40.0-gram projectile is launched by the expansion of hot gas in an arrangement shown in part (a) of the figure. The cross-sectional area of the launch tube is 1.0 cm2.
A uniform thin rod of length 0.400 m and mass 4.50 kg can rotate in a horizontal plane about a vertical axis through its center. what is the bullet's speed just before impact
A 10.0 g bullet traveling horizontallt at 755 m/s strikes astationary target, What is the average force of the target on the bullet
A typical wall outlet voltage is 120 volts in the United States. Personal MP3 players require much smaller voltages, typically 709.5 mV. If the number of turns in the primary coil is 1353, calculate the number of turns on the secondary coil of the ad..
The figure below shows a resistor of resistance R = 6.16Ω connected to an ideal battery of emf = 14.9 V bymeans of two copper wires. Each wire has length 23.2 cm and radius3.40 mm. In dealing with such circuits in this chapter, wegenerally neglect..
The potential difference between two points in a wire 10 m apart is 12 V. When the current density is 4*10^7 A/m^2. find the resistivity of the material in the wire
An object is placed 24.5 cm to the left of a thin converging lens that has focal length +12.1 cm. What is the distance between the object and the image
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