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A student has to escape from his girlfriend's dormitory through a window that is 15.0 m above the ground. He has a 24-m rope, but it will break when the tension exceeds 360 N, and the student weighs 600 N. The student will be injured if he hits the ground with a speed greater than 8 m/s.
(a) Show that he cannot safely slide down the rope.
(b) Find a strategy using the rope that will permit the student to reach the ground safely.
a coal-fired electric power plant has an overall efficiency of 35 and an output of 1997 megawatts. how many terajoules
White light passes from quartz to air, with an incident angle of 31.7°. Discover the angle among the colors blue (470 nm) and violet (410 nm).
The pendulum in a grandfather clock is made of brass and keeps perfect time at 20?C. How much time is lost in a year
A skier of mass M started from rest at the top of a frictionless round hill of radius R. as they slide down the side, find at what angle will they leave the sphere
A gymnast does a one arm handstand. The humerus may beapproximated as a .32 m long cylinder with an outer radius of 1.2 x10-2, By how much is the humerus compressed
Two parallel plates are connected to a 40 V battery. The distance among the two plates is 24 cm. What is the magnitude, in V/m, of the electric field among the two plates?
Presume you carry a bag of groceries weighing 148 N from your car to the kitchen, a distance of 59m, without raising or lowering the bag.
Obtain the magnitude of the electrostatic force between an Oxygen molecule nucleus and a Helium nucleus if they are 1 millimeter apart
Calculate the angle, between 0° and 90°, that the string makes with the pole. Take g = 9.81 m/s2. Find the tension of the string.
Initially, an object is 12cm to the left of a convex lens of focal length 8.2cm, then a concave (diverging) lens of local length -9cm is placed 20cm to the right of the convex lens, find the Image distance from concave lens
A rock is thrown off a 120 meter cliff at a velocity of 2.9m/s [37o above horizontal]. Evaluate what is the final velocity of the rock as it hits the ground
A square coil of wire with 17 turns is in a magnetic field of 0.11 T. Find the area of one turn if the field is perpendicular to the plane of the coil
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