Top of the window the windowsill
A flower pot fell of a windowsill and falls past the window below. you may ignore air resistance. it takes the pot .470s to pass the window, which is 1.80m hight. how far is the top of the window below the windowsill from w/c the flower pot fell?
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If the magnetic field strength is 0.845 T, what is the magnitude and direction of the magnetic force on the wire between the poles?
You drop a rock off a cliff and note that it hits thr ground below in 6 s. How high is the cliff, assuming that the air is so thin that air resistance can be ignored during the entire fall? Unless the air is extremely thin, air resistance will not
A 100 kg skier slides from rest down a 50m, 30 degree slope. Calculate the skier's speed at the bottom.
A certain car battery with a 12.0 V emf has an initial charge of 178 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long in hours can it deliver energy at the rate of
Calculate the lime requirement (LR) of a soil in tonnes CaCO3/ha-20 cm given the following results of a LR determination in the laboratory using lime water (Ca(OH)2) where (Ca(OH)2) has a CaCO3 equivalent of 134%.
Calculate the impulse delivered to the ball during impact. If the ball is in contact with the slab for a time of 1.60ms , find the average force on the ball during impact.
A 10cm-long thin glass rod is uniformly charged to +50 nC. A small plastic bead, charged to - 4.7 nC, is 4.5 cm from the center of the rod. What is the magnitude of the force on the bead?
Two lenses of focal length +25cm and -10cm (convex and concave) respectively are placed in contact. What is the power of the combination?
A cannonball launched with an initial velocity of 141 m/s at angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglecting air resistance, how fast is it going when it hits the balloon? What is the accel
Both masses start from rest at point A in the position shown; point B is just as m2 hits the floor. The total mechanical energyin the system is 13.1. what is the kinetic energy of the system at point b?
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