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As a baseball is being caught, its speed goes from 43 to 0 m/s in about 0.003 seconds. Its mass is 0.145 kilogram. (Take the direction the baseball is thrown to be positive.)
(a) Compute what is the baseball acceleration?
in m/s2
(b) Compute what is the baseball acceleration?
in g's
(c) Compute what is the size of the force acting on it?
a scout walks 4.5 km due east from camp then turns left and walks 4.05 km along the arc of a circle centered at the
Find the modulation index corresponding to the given trapezoidal pattern for the AM signal.
A capacitor has a capacitance of 250 nF and a voltage is placed across it which grows as a function of time as: V(t) = 240 mV/s3 × t3
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The speed of a sinusoidal wave on a string depends on:
One of the asteroids, Ida, looks like an elongated potato. Surprisingly it has a tiny (compared to Ida) spherical moon! Find the acceleration of gravity on the surface of this little moon
A curve of radius 35 m is banked for a design speed of 64 km/h. If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely make curve.
A horizontal 802 Newton merry-go-round is a solid disk of radius 1.51 meter, Obtain the kinetic energy of the disk after 2.99 second
A beam of polarized light has an average intensity of 19 W/m2 and is sent through a polarizer. Find the rms value of the electric field of the transmitted beam
Two tiny conducting spheres are identical and carry charges of -20.7 μC and +51.7 μC. They are separated by a distance of 2.39 cm. What is the magnitude of the force that each sphere experiences?
The Earth is 1.49 ? 1011 meters from the sun. If the solar radiation at the top of the Earth's atmosphere is 1 340 W/m2, what is the total power output of the sun?
a 4kg mass is on the end of a 80 cm long cord. the mass is pulled to an angle of 35 degrees from the vertical and then
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