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Question: Consider two projectiles launched on level ground with the same speed, at angles tan (± 45degree).
Question 1: Find the ratio of their flight times.
Please explain all work and steps to determine the ratio of their flight times.
A boat takes 3.10hours to travel 50.0km down a river, then 6.30hours to return. How fast is the river flowing
An object is placed 20.0 cm from a first converging lens of focal length 10.5 cm. Calculate the magnification of the first lens
The ray now travels inside the glass. What is the minimum angle of incidence at which the yellow ray can hit the surface of the glass and become there totally internally reflected and not refracted
2500 j of heat is added to a system and 1800 j of work is done on the system. what change in internal energy of the system
A plane is headed due west with an air speed of 224 m/s. Find the velocity of the plane relative to the earth
A projectile of mass 2.06 kg approaches a stationary target body at 7.70 m/s. What is the speed of the target body
A double slit is opposite the center of a 1.6-m wide screen 2.4 m from the slits. How many fringes are visible on the screen if the slit is illuminated by 602-nm light
Two traveling sine waves, identical except for a phase difference of phi, What is the phase difference between the two waves
A blacksmith cools a 1.30- chunk of iron, initially at a temperature of 650.0, by trickling 15.6 water over it. How much water did the blacksmith trickle over the iron
A current of 27.0 mA is maintained in a single circular loop of 1.90 m circumference. A magnetic field of 0.870 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop
A playground merry-go-round, made in the shape of a solid disk, hasa diameter of 2.50 m and a mass of 350.0 kg. Two children, each ofmass 30.0 kg, sit on opposite sides at the edge of the platform.Approximate the children as point masses.
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
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