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A grasshopper hops along a level road. On each hop, the grasshopper launches itself at angle θ0=45° and achieves a range R = 0.82m .What is the average horizontal speed of the grasshopper as it hops along the road? Assume that the time spent on the ground between hops is negligible.
By holding a magnifying glass 29cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8m from the lamp. What is the focal length of your magnifying glass
Two window washers, Bob and Joe, are on a 3.00 m long, 405 N scaffold supported by two cables attached to its ends. what are the forces on each cable
A young hockey player stands at rest on the ice holding a 1.3-kg helmet. The player tosses the helmet with a speed of 4.6 m/s in a direction 9° above the horizontal, and recoils with a speed of 0.22 m/s. Find the mass of the hockey player.
A mass of 9.30 kg is suspended from a 1.45 m long string. It revolves in a horizontal circle, Calculate the angle between the string and the vertical
Calculate the change in the amount of bremsstrahlung that would be produced if an aluminum target were substituted for an iron target.
Two large metal plates of area 1.0m2 face each other. They are 5.0cm apart and carry equal and opposite charge on their inner surfaces. what is the charge on the plates
An object is placed 30 cm from a concave spherical mirror with a radius of curvature of 40 cm .
Two capacitors of capacitance 5.0 μF and 8.0 μF areconnected in series. The 3rd capacitor of 10 μF isconnected in parallel with the 1st capacitor 5.0 μFcapacitor. The network is connected to a battery of 9.0V.
question1a baseball is thrown at an angle of 20? relative to ground at a speed of 25.6 ms. the ball is caught 42.9416 m
The density of water is 1000kg/m^3 or 8.33lbm/gallon, the mass flow rate is 494838.83 kg/s and goes through a turbine generator that has 0.80 efficiency
a uniform metal plate of edge 25 cm has a square section of edge 5.0 cm cut out of it.a where is the center of gravity
On a frictionless air track, a 0.140 kg glider moving at 1.35 m/s to the right collides with and sticks to a stationary 0.245 kg glider. What must be the net momentum of this system after the collision
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