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In Europe, surveyors often measure angles in grads. There are 100 grads in one-quarter of a circle. How many grads are there in 2.16 radians?
A 3.00-g copper penny at 25.0 C drops 50.0 m to the ground. (a) If 60 percent of the initial potential energy of the coin earth system goes increasing internal energy of the coin determine the coin's final temperature (b) does the result depends on m..
A spherical mirror is to be used to form a real image of an object that is located 5 meters from the object. What type of mirror needs to be used
A long string with a mass/length of 500 g/m is placed under a tension of 400 N, What is the wavelength of the resulting wave and What is the wave speed
A 5* 10^2 kg hot air balloon takes off from rest at the surface of the earth. The non conservative wind and lift forces take the balloon up, doing +9.70*10^4J of work on the balloon in the process. At what height above the surface of earth does th..
While looking into a silver Christmas ornament, If your nose is only 6.25 inches from the ornament, and the diameter of the ornament is 4.85 cm, how far behind the ornament does your nose appear
The vector position of a 3.80 g particle moving in the XY plane varies in time according to \(r_1= (3i + 3j)t + 2t^2\), Determine the vector position of the center of mass at t = 2.90
An electric dipole consists of charges +e and -e separated by 0.76 nm. It is in an electric field of strength 2.50 10^4 N/C, What is the torque on the dipole when it is perpendicular to the field
A 3.92 m long rod has mass 1.04 kg which is uniformly distributed along the rod. what is the magnitude of the angular acceleration of the rod
A 2.1-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.36 m above the lowest part of the slide and the s..
q1. an object is 14.4 cm from the surface of a reflective spherical christmas tree ornament 8.04 cm in diameter.what is
A 100 object is taken to a height of 250 above the Earth's surface. What is the object's mass at this height? What is the object's weight at this height
A father and a daughter balance a teeter-totter to illustrate the principle of the lever. If the father whose weight is 150 N is 8 m from one end, how far away on the opposite side of the fulcrum should the 50-N daughter stand to balance the teeter-t..
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