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A cannon is aimed at an angle of 30 degrees above the horizontal. It fires a cannonball into the direction of a valley with a muzzle velocity of 100m/s. Neglecting air resistance, find
a) The total time that the ball remains in the air.
b) What is the maximum height of the ball?
c) Find the horizontal range of the ball please give a detailed response and step by step formula explanation etc.
a string stretched between two fixed ends vibrates in its second harmonic with a frequency f=2 Hz. if the velocity that links the frequency and wavelength is equal to 40 m/s, find the wavelength of the stationary wave
Its walls are equally high and 11 m apart. He takes off by driving a motorcycle up a short ramp sloped at an angle of 24°. Illustrate what minimum speed must he have in order to clear the canyon?
Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
the velocity of an airplane is 50km/hr due north. the plane the plane flies into a cross wind of 50km/hr due east at a right angle
An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 35 cm beyond the first, what is the height of the final image
In coming to a stop, a car leaves skid marks 77m long on the highway. Assuming a deceleration of 8m/s2, estimate the speed of the car just before braking.
Two point charges .03 m apart have an electric potential energy -90 microjoules . The total charge is 20 nanoCoulombs. What is the lesser charge
An unmarked police car travelling a constant 85 km/h is passed by a speeder. Precisely 2 s after the speeder passes, police officer steps on the accelerator.
A hiker's trip consists of three segments. Path A is 8.0 km long heading 60degrees north of east. Path B is 7.0km long in a direction due east. Path C is 4.0 km long heading 315 degrees counter clockwise from east.
David is driving a steady 21 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.20 m/s^2 at the instant as David passes.
What magnitude of charge must be given to the drop
In the figure, block 2 (mass 1.10 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 231 N/m. by what distance is the spring compressed
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