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A uniform 5 kilogram ladder is leaning against a frictionless vertical wall, with which it makes a 15 degree angle. The coefficient of friction between ladder and ground is 0.26. Can a 65 kilogram person climb to the top of the ladder without it slipping? If not, determine how high can that person climb? If so, how massive a person would make the ladder slip?
A thermos contains 159 cm3 of coffee at 93.7 °C. To cool the coffee, you drop two 13.2-g ice cubes into the thermos. What is the final temperature of the coffee
A 5.1 g marble is fired vertically upwardusing a spring gun. The spring must be compressed 8.0 cm if themarble is to just reach a target 13 mabove the marble's position on the compressed spring.
In 1993, Javier Sotomayor set a world record of 2.45 m in the men's outdoor high jump. He is 193 cm tall, determine his takeoff speed
A mass spectrometer applies a voltage of 2 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305m. What is the mass of the ion.
A 10 cm long solenoid with 222 turns and radius R = 3.00 cm has a current flowing through it of Io = 200 mA. What is the magnetic field strength inside the solenoid
Light of 650 nm is incident on two slits. A maximum is seen at an angle of 5.74° and a minimum of 6.46°. What is the order m of the maximum
an object is moving in the -direction at 1.4 ms when it undergoes an acceleration . a 0.52j ms2 find its velocity
A sea lab 5.0 m high is to be designed to withstand submersion to 150 m, measured from sea level to the top of the sea lab. Calculate the pressure on top of the sea lab
Prior to the music CD, stereo systems had a phonographic turntable on which vinyl disk recordings were played. calculate the total number of rotations for the complete start-up
A car starts from rest and then accelerates uniformly to a linear speed of 16 m/s in 42 s. If the tires have a radius of 27 cm, what are the following.
You are asked to design a spring that will give a 1280 kilogram satellite a speed of 2.50 m/s relative to an orbiting space shuttle. Find what distance must the spring be compressed
A classroom window made of glass is 1cm thick. The window is 2m square . If the thermal conductivity of glass k = 0.96 w/(mK) and the temperature is 21C inside and 32C outside, find the head flux and the temperature distribution along the thicknes..
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