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Your car is initially traveling at a speed of 23 meter per second. As you approach an intersection, you spot a dog in the road 36 meter ahead and immediately apply your brakes.
(a) If you stop the instant before you reach the dog, estimate the magnitude of your acceleration?
An object is placed 5 cm in front of a spherical mirror. A virtual image is formed 10 cm behind the mirror. What is the magnification of the mirror
A severe thunderstorm dumped 2.4 in of rain in 30 min on the town of area 21 km2. What mass of water (in kg) fell on the town? One cubic meter of water has a mass of 103 kg.
if you know the temperature of a star how would you find its wavelength? say the temperature of a star is 30000k what
The dispersion coefficient of a material is dn/dwavelength = 17.1 x 105 nm-1, such that n0 = 1.500 when wavelength= 543.0 nanometer. find the absolute value of angular separation of the refracted beams
The Earth has a radius of approximately 6.37 x 10 ^ 6 meters (m). Determine the surface area of the Earth in square kilometers
Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 19.9 below the horizontal. Find the car's position relative to the base of the cliff
Starting from rest a 5 kilogram crate slides 0.8 meter down a frictionless ramp (making an angle of 25 degree to the floor). Use energy principles to calculate the speed of the crate at the bottom of the ramp
A 70.0 kilogram base runner begins his slide into second base when he is moving at a speed of 3.5 m/s. Find how far does he slide
A convex mirror has a focal length of -25.5 cm. Find the magnification produced by the mirror when the object distance is 8.7 cm
the drawing shows an electron entering the lower left side of a parallel plate capacitor and exiting at the upper right
A person who weighs 600 N is riding a 98 Nmountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in eachtire is 8.05*105 Pa, what is the area of contact between each tire and the ..
A mass spring system had k= 55.6 N/m and m=0.41 kg. Find the frequency of its simple harmonic motion
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