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A bicyclist traveling with speed v= 4.2 m/s on a flat road ismaking a turn with a radius r =6.4m . The forces acting on cyclistand the cycle are the normal force and friction force exerted onthe road on the tires and mg, the total weight of the cyclist andcycle.
If the coefficient of static friction between tiresand road is 0.70, what is the minimum turning radius?
The electric potential difference across the cell membrane of ahuman cell is 0.080 V, with the higher potential being outsidethe cell. In one cellular process a sodium ion Na+, with charge+e, is "pumped" through a channel in the membrane to beejected..
A bar magnet is held above the center of the coil with its north pole pointing down. What is the direction of the induced current in the coil
A uniform electric field of magnitude 324 N/C is directed along the +y-axis. A 5.90 µC charge moves from the origin to the point (x, y) = (-20 cm, -35 cm). What is the change in the potential energy associated with this charge?
a neutron star and a black hole are 2.400e12 m from each other at a certain point in their orbit. the neutron star has
Water is in the big beaker in the figure on the left. Scale 1 reads 96 newtons, scale 2 reads 531 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 10 × 10^3 kg/m3. To nearest tenth of a newton what does scale 1 read after t..
a block of mass 2.5 kg is placed at a distance d=0.300 m from the spring. from this posistion the block is projected toward the spring with a speed v
Assume that the universe is a spherical cavity with a radius of 10^26 m and temperature of 2.7 K. How many thermally excited photons are there in the universe
45 J of work are done per cycle on a refrigerator with a coefficient of performance of 5.0, How much heat is extracted from the cold reservoir
An injured monkey sits perched on a tree branch 9.0 m above the ground, while a wildlife veterinarian is kneeling down in the bushes 81.5 m away attempting to subdue the monkey with a tranquilizer gun. Given the angle above, what is minimum speed t..
Consider a 2.5 GHz `clock' signal on a circuit board that has the following properties: It is constant at +4.00 V for 0.0073 ns, What is its rms voltage?
A ceiling fan with 82cm diameter blades is turning at 70rpm. Suppose the fan coasts to a stop 29s after being turned off. Illustrate what is the speed of the tip of a blade 10s after the fan is turned off?
A circular metal loop whose radius is 6:0 cm carries a current of 5:0 A. It is horizontal, while the earth's field points North and 60? below the horizontal. (The earth's field has a magnitude of about 0:50 Gauss, which is 0:5 10?4 T.
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