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A certain light truck can go around a flat curve having aradius of 150 m with a maximum speed of 34.5 m/s. With what maximum speed can it go arounda curve having a radius of 88.5m?
A 2.30-MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. Calculate the speed of the fetal heart wall at the instant this measurement is made
In compressing the spring in a toy dart gun , 0.5 J of work isdone. When the gun is fired, the spring gives its potential energyto a dart with mass of .02 kg. What is the dart's kinetic energy as it leaves the gun
The ems of an AC circuit has an rms value of 120V. What is the maximum positive emf
Light of wavelength 500 nm is incident on a thin sheet of plastic film (n= 1.50) in air. What is the thinnest the sheet can be
A satellite is in a circular orbit around the Earth at an altitude of 2.20 * 106 m. Find the acceleration of the satellite
A uniform magnetic field in a region of space changes at a rate of 5.000e-3 T/s. What is the strength of the induced electric field on a circle
A proton of mass (m) moving with a speed of 3.0x 10^6 m/s undergoes a head-on elastic collision with an alpha particle of mass (4m), What are the velocities of the two particles after the collision
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
A 310 turn solenoid with a length of 22.0 cm and a radius of 1.40 cm carries a current of 2.30 A. Calculate the area of the 4-turn coil
An electron with a speed of3.6105m/s enters a uniform magnetic field of magnitude0.057T at an angle of 35° to the magnetic field lines. The electron will follow a helical path.
The discovery of a star orbiting the center of our galaxy with a 15-year period has led to the finding, calculate the semimajor axis of the star's orbit
A 7430-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. Find the work done by the gravitational force
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