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Three athletes are tugging on a ring. Martha pulls with a force of 150 N in the northerly direction. Eveylyn pulls with a force of 100 N in the easterly direction. Sara pulls with a force of 200 N in the southwesterly direction (225 degrees clockwise from north).a) How big is the resultant of the three forces?b) What is the direction of the resultant force?Please show your work and steps!
Estimate mean and maximum velocities for a liquid
A block of mass 0.14 kg is placed on a vertical spring of constant 5723 N/m and pushed downward, compressing the spring 0.08 m. What height above the point of release will the block reach
A rock is thrown from the edge of a cliff to the ground 24.0 m below. The rock has an initial velocity of 13.5 m/s, directed 24.0° above the horizontal. Find the velocity of the rock just before it strikes the ground
Football players measure their acceleration by seeing how fast they can sprint 40 yards (37 ). what is the average power output for this sprint
A ball is thrown from the roof of a 22m tall building with an initial velocity of magnitude 12 m/s and directed 53.1 (o) above the horizontal. What is the magnitude of the ball's velocity just before it hit the ground
A possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer. how thick would you make the coating
one capacitor with two flat conductors are seperated with 4mm. the area of each plate is 5m^2. one plate has charge of +200mC , calculate the capacitance of the device
A 1400kg elevator accelerates upward at 1.30m/s2 for 11.0m , starting from rest. How much work does gravity do on the elevator
Two blocks of weights 70.0 and 100.0 N are connected by as massless string and slide down an inclined plane making an angle of 42.0 deg. find the magnitude of the heavier block's acceleration
what is the magnitue of the magnetic field in the centre of a solenoid with a current of 1.25 A, Describe the right hand rule for solenoids
an object and lens positioned to form a well-focused, inverted image on a viewing screen. What happens to the image on the screen
A solution has a hydronium-ion concentration of 1.0 x 10-5 mol per liter. What is the hydroxide-ion concentration of this solution
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