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Three point charges lie along a straight line as shown in the figure below, where q1 = 6.36 µC, q2 = 1.46 µC, and q3 = -1.98 µC. The separation distances are d1 = 3.00 cm and d2 = 2.00 cm. Calculate the magnitude and direction of the net electric force on each of the charges.
An electron is located on a pinpoint having a diameter of 6.29 µm. What is the minimum uncertainty in the speed of the electron
A car speeds up as it turns from travelling due south to dueeast. When exactly halfway around the curve, the car's accelerationis 3.50 m/s 2, What is the radial component of the acceleration at that point
A crane of mass M = 11500 kg lifts a wrecking ball of mass m = 1310 kg directly upward. Find the magnitude of the normal force exerted on the crane by the ground while the wrecking ball is moving upward at a constant speed of v = 1.45 m/s
A ball is dropped from a height of 4 m and makes an elastic collision with the ground. Assume that no mechanical energy is lost to air resistance. Is the motion simple harmonic
A hot-air balloon is travelling upwards with a constant speed of 12 m/s. An object fell from the balloon when it was at the height of 1000 m
a 26.79 g sample of a substance is initially at 23.6 c. after absorbing 1001 j of heat the temperature of the substance
When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.77 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
An object is held up by two ropes. rope 1 makes an angle of 65 degrees above horizontal and the tension in it is T1 = 26N. rope 2 makes an angle of 32 degrees above horizontal and the object is in equilibrium. what is the tension in rope 2 (T2) an..
A capacitor is connected to an ac generator that has a frequency of3.7 kHz and produces a voltage of1.9 V. The current in the capacitor is 32 mA. What voltage does the second generator produce
A riffle with a mass of 3.00kg fires a bullet with a mass of 3.50 x 10 ^ -3 kg at a speed of 330 m/s. What is the recoil speed of the riffle
You drop a 297-g silver figure of a polar bear into the 203-g aluminum cup of a well-insulated calorimeter containing 257 g of liquid water at 21.7°C. What is the final temperature of the water, cup, and bear
On a hot summer day (30 degrees Celsius), a pesky little mosquito produced its warning sound near your ear. What is the frequency in Hertz of the sound wave
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