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A ladder base is 6m away from a house, and the fully extended ladder is 10m long when it leans against the house. How high does the ladder reach on the house? (1.6pts) 58m 8 m about 7.6m 4m
At t1 = 5.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular motion is a1=(2m/s^2)i + (9m/s^2)j At t2 = 6.00 s (less than one period later), the acceleration is a2= (9m/s^2)i - (2m/s^2)j The period is more t..
A place kicker should kick a football from a point 32 m (about 35.0 yd) from the goal, and the ball should clear the crossbar, which is 3.050 m high. When kicked, the ball leaves the ground with a speed of 21.0 m/s at an angle of 49° to the horizo..
A city employee wanted to measure the height of a tall tree. The employee stood 9.50 m from the base of the tree; and he saw that his line of sight made an angle of 65.2 degrees above the horizon,
Find the distance point P on the tip of the blade has traveled in 3 sec. Also, find the magnitude of the acceleration of point P when t = 3 sec.
Suppose that electrical energy costs about $0.098/(kW · hour), If the electric potential provided by the electric company was 120 V, what was the average current in all circuits in the author's house
An 91 kg man climbs a 981 m high mountain in 1.01 hour and uses 7.6 kcal/min, Determine the power consumption in watts.
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. determine how fast will the disk be turning
Find the minimum diameter of an l = 16.3 m long steel wire that will stretch no more than 7.39 mm when a mass of 343 kg is hung on the lower end
Two wires are separated by 3.0 cm and each is of length 1.5 m. They repel each other with a force of 4.0 N. The current in one wire is 5.0 A. find the current in the other wire
An object falls because of gravity at the rate of -920 cm/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo = 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
Electrons are located at the points (0,1), (3,4), (1, 2). Find the net electric field at the origin
A car with a mass of 1600 kg is initially traveling at 72 m/s. Find the energy required to stop the car
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