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When the first artificial satellite was launched into orbit by the former Soviet Union in 1957, U.S. president Dwight D. Eisenhower asked his scientific advisors to calculate the mass of the satellite. Would they have been able to make this calculation? Explain.
Discuss the history of psychology listing influential persons who have contributed to the discipline of psychology.
A telephone cord is 9.00 m long andhas a mass of 0.500 kg. A transversewave pulse is produced by plucking one end of the taut cord. What is the tension in the cord
The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find out the maximum altitude reached by the rocket.
A tank contains 11.6 g of chlorine gas (Cl2) at a temperature of 81 °C and an absolute pressure of 5.02 105 Pa. The mass per mole of Cl2 is 70.9 g/mol. How many grams of chlorine gas have leaked out of the tank
A nonconducting solid sphere of radius 8.20 cm has a uniform volume charge density. What is the sphere's volume charge density
A 4.4 kg block of aluminum is heatedat atmospheric pressure so that its temperature increases from28.5°C to 44.0°C. Find the change in the block's internal energy
A 20.0 kg mass at rests decays into a particle that is moving at 0.30c. What is the mass of this new particle
A 3kg ball traveling to the right with a speed of 4 m/s collides with a 4 kg ball traveling to the left with a speed of 2 m/s. The total momentum of the two balls after the collision
Two coils are at fixed locations. When coil 1 has no current andthe current in coil 2 increases at the rate 15.4 A/s, the emf incoil 1 is 27.0 mV. (a) What is their mutualinductance (in mH)? (b) When coil 2 has no currentand coil 1 has a current of 6..
A house has a floor area of 120 m2 and an outside wall that has an area of 27 m2. determine the magnetic flux that passes through the floor
An electron acquires 7.45 x 10^-16 Joule of kinetic energy when it is accelerated by an electric field from plate A to plate B. Find what is the potential difference between the plates
A solid block is suspended from a spring scale. The reading on the scale when the block is completely immersed in water is 25.8 N, and the reading when it is completely immersed in a liquid of density 869 kg/m3 is 26.7 N.
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