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When a resistor is connected to a 10V source, it draws a 185mA current. The same resistor connected to a 96V source draws a 1.10A current. What is the rate of Joule heating in this resistor in both cases?
When water freezes, it expands about 8.95%. What would be the pressure increase inside your automobile's engine block if the water in it froze
A 16.0 kg rock is initially at rest upon a level table. A person suddenly pushes against the rock in the horizontal direction with a force of 8.0 N. FIND the velocity of the rock after 1.5 s
A person is performing a knee extension exercise with a 100 N weight acting at the ankle. What is the torque at the knee necessary to maintain a knee joint angle of -60q relative to the right horizontal passing through the knee joint
Physicists first attempted to understand the hydrogen atom by applying the laws of classical physics. Consider an electron of mass m and charge -e in a circular orbit of radius around a proton of charge +e. Use Newtonian physics to show that the tota..
Define the terms “Coefficient of Static Friction”, and “Coefficient of Kinetic Friction”. What is friction? The force probe reading will represent the frictional force, which of Newton’s Laws allows us to do this? Explain.
If a dielectric material with ? = 3.80 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery), how much additional charge will flow from the battery onto the positive plate
a boat capable of making 10.0 kmh in still water is used to cross a river flowing at speed of 4.0 kmh. the boat is
A 30-kg shopping cart full of groceries sitting at the top of a2.0-m hill begins to roll until it hits a stump at the bottom of the hill. How deep is the dent made in the car
A rare isotope facility produces a beam of 7.11E5 nuclei per second of a rare isotope with mass 6.43E26 kg. What is the magnitude of the average force that this beam exerts on the beam stop
At the local grocery store, you push a 12.7-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. What was the mass of the dog food
A 11 g bullet is fired into a 12 kg wood block that is at rest on a wood table. The block, with the bullet imbedded slides 5.0cm across the table. The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the speed of the bullet?
a ray of light traveling through air encounters a 1.4 cm-thick sheet of glass at a 38 degree angle of incidence.how far
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