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Solve the given question:
Question: A 55m/s wind blows over a flat roof. The house is 4.2m tall, 6.2m wide and 12.4m long.
A- Estimate the minimum mass of the roof so that it will not blow off.
I need expert help to solve the above question and ignore the force of the nails holding it down.
There are 3.344 x 10^25 molecules in 1 kg (1 litre) of water. What is the distance between the molecules
A 0.5 kg cart is pushed by a force of 6.2 N for a total distance of 3.2 m. what would the velocity of the cart be when the force stops
A total of 8.21·106 electrons are placed on an initially uncharged wire of length 2.27 m. What is the magnitude of the electric field a perpendicular distance of 0.974 m away from the midpoint of the wire? What is the magnitude of the acceleration of..
A diffraction grating is placed 1.00 m from a viewing screen. Light from a hydrogen lamp is passed during the grating, and the 656 nm line in the hydrogen spectrum is seen in first order 60.0 cm to one side of the center. Then the hydrogen lamp is re..
a police car is traveling east at 40.0 ms along a straight road overtaking a car ahead of it moving east at 30.0 ms.
A high-voltage power line carries a current of 120A at a location where the Earth's magnetic field has a magnitude of 0.59 G and points to the north, 63 degrees below the horizontal. Find the magnitude of the magnetic force exerted on a 290m length..
A 10 kg box slides 4.0 m down a frictionless ramp and collideswith a spring as shown in the figure. The spring constant is 250N/m. At what compression of the spring does the box have its maximum speed?
Two particles with masses m1 = 1 kg and m2 = 3 kg are moving toward each other along the x axis with the same initial speeds vi = 1 m/s. Find the final speeds of the two particles
How much energy is lost through your hands in one minute after touching on a cold surface at 10 C compared to being exposed to cold air at 10 C
An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this plane will be 65 m/s. Assuming this minimum acceleration, what is the minimum..
How many energy is consumed by a 1.10kW hair dryer used for 11.0min and a 10.0W night light left on for 11.0hr
question1a cylindrical 3.52 kg pulley with a radius of 0.360 m is used to lower a 4.45 kg bucket into a well. the
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