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An artillery shell is fired with an initialvelocity of 300 m/s at 52.0° above the horizontal. To clear an avalanche, itexplodes on a mountainside 44.0 s afterfiring. What are the x and y components of theshell where it explodes, relative to its firing point?
A 77.5 kg bobsled is pushed along a hor- izontal surface by two athletes. After the bobsled is pushed a distance of 5.0 starting from rest, Find the magnitude of the net force on the bobsled
question1a bank robber travelling at 75 mihr in an escape car suddenly sees a barricade 150 meters ahead. the robber
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. What is the force exerted by the muscle if its effective perpendicular lever arm is2.00 cm
q1. an electron starts from rest 75.5 cm from a fixed point charge with q -0.150 microc. how fast will the electron be
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 2.30 m3 to Vf = 3.10 m3, at a constant pressure of 1.99 atm, Find the number of moles of gas
You are traveling on an airplane. The velocity of the plane with respect to the air is 130.0 m/s due east. What is the speed of the plane with respect to the ground
The length of a table in the laboratory was measured as 182.36 cm, What is the relative uncertainty of the length, What is the uncertainty of the length
Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s and the other car at 31.0m/s. At the moment the cars are 41.9m apart, the lead driver applies the brakes, causing her car to have an acceleration of -2.07m..
An unknown gas has a density of 1.584 kg/m3 at STP. (STP, for standard temperature and pressure, What is the gram molecular mass
Two small plastic spheres each have a mass of 1.9g and a charge of -52.0 nC. They are placed 3.0cm apart (center to center). A) What is the magnitude of the electric force on each sphere
Determine the temperature at which the resistance of atungstenwire will be three timesits value at 20°C. Assume its coefficient of resistivity remains constant.
Two positively charged particles q1 = 2C and q2 = 2C are separated by distance d = 1.0 m. Calculate the total electric potential energy of 3 particles
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