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1. The resistance across your (wet) tongue, from one side to the other near the tip, is 375 ? (assume that your tongue is an ohmic material). If you connect two thick copper wires of relatively negligible resistance to the terminals of a 1.5 volt flashlight battery, and place them on opposite sides of your tongue, you will be able to "taste" the electricity as it flows across, producing a sour metallic flavor. What current is flowing through the saliva that coats your tongue?
A car travelling at 25.0 {rm m/s} runs out of gas while travelling up a 22.0^circ slope. How far will the car go up the hill before it runs out of gas.
Two small plastic spheres are given positive electrical charges. When they are 17.0{\rm cm} apart, the repulsive force between them has magnitude 0.200{\rm N} . 1.What is the charge on each sphere if the two charges are equal? 2.What is the charge..
A 1,576-kg car is moving down a road with a slope (grade) of 11% while speeding up at a rate of 3.6 m/s^2. What is the direction and magnitude of the frictional force
A 0.5970-kg ice cube at -12.40°C is placed inside a chamber of steam at 365.0°C. Later, you notice that the ice cube has completely melted into a puddle of water, calculate the final temperature of the puddle once it settled to equilibrium
What is the apparent weight of a cube of iron of volume 0.2 m3 when it is submerged in water? The density of iron is 7800 kg/m3
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
An elevator accelerates upward at 1 m/s2. When the elevator is moving upward at 2 m/s, a bolt drops from the ceiling which is 2.5 m above the?
Compute the quantum length (thermal de Broglie wavelength) in nanome-ters and the chemical potential in electron volts of 4He gas at room temperature and pressure
A charge of 3.0 uC(micro C) and a second charge are initially far apart. find the magnitude of the unknown charge
an electron is released from rest at the negative plate of a parallel plate capacitor and accelerates to the positive plate, What is the kinetic energy of the electron just as it reaches the positive plate
What is potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?
A 950-kg car traveling west at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. Find the speed of the wreckage just after the collision
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