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1. When a battery is connected to several different circuits, it will cause the same current in each circuit? i know its false but please elaborate
2. The magnetic force exerted by the B-field on a charged object points in the direction of the B-field (if the object is positively charged) or opposite the direction of the B-field (if the object is negatively charged). also please elaboarte
A thermos contains 148 cm3 of coffee at 88.5°C. To cool the coffee, you drop two 12.2-gram ice cubes into the thermos. Estimate the final temperature of the coffee in degrees Celsius
A comet of mass m, following a trajectory that is a a parabola about the sun, collides with an equal mass at rest, determine the nature of the orbit after the collision
A spring with force constant 327 N/m is in a compressed state, 0.401 m shorter than its relaxed length. In this condition, the spring serves a vital purpose in a device for detecting impending earthquakes. A curious physicist releases the spring a..
A 1500 kg car moving on horizontal roa with speed of 30 m/s coasts to a stop in 1800 m, once the motor is turned off. What is the resultant force of air resistance
A model rocket is fired vertically from rest. It has a net acceleration of 17.0 m/s2. How long after liftoff does the rocket return to the ground
A uniform, solid, spherical asteroid with mass1.2x1013 kg and radius 1.0 km isrotating with a period of 5.2 hours. A meteoroid moving in the asteroid'sequatorial plane crashes into the equator at 8.8 km/s. It hits at a 58° angle to thevertical and..
A piston-cylinder device initially contains 1.4 kg of saturated liquid water at 200oC. Determine the final temperature and pressure
A woman stands on a scale in a moving elevator. Her mass is 50.5 kg, and the combined mass of the elevator, What does the scale read during the acceleration
The now-discontinued Concorde flew at Mach 1.3, which meant the speed of the plane was 1.3 times the speed of sound in air. What is the angle among the direction of propagation of the shockwave and the direction of the plane's velocity?
A force F acts on an object undergoing a displacement s, the force being oriented at an angle θ with respect to the displacement. Which one of the following correctly describes ALL of the circumstances under which the work done with the force is zero..
A steel safe with mass 2200 kg falls onto concrete. Just before hitting the concrete its speed is 40 m/s, and it smashes without rebounding and ends up being 0.06 m shorter than before. What is an approximate magnitude of the force exerted on the ..
how many 65-w lightbulbs can be connected in parallel across a potential difference of 95v before the total current in
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