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Question1
1. Directions of electric field are indicated on field lines. Why don't you have a direction indicated on an equipotential line? 2. Where is location of the largest electric field on an equipotential plot (of a line and a sharp point)? 3. Does silver paint on a conducting sheet form an equipotential? Why or why not give reasons?
Question2
Assume the volume V of some object happens to depend on time t according to the equation V (t) = At3+Bt , where A and B areconstants. Let L and T denote dimensions of length and time, correspondingly. What is a dimension of the constant A?
Question3
All through World War 1, the Germans had a gun called BIg Bertha that was used to shell Paris. The shell had an initial speed of 1.45km/s at initial inclination of 33.2 degrees to horizontal. The acceleration of gravity is 9.8m's^2. How far id shell hit? Answer in km. How long was it in air?
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
A car of mass M= 1690 kg oscillates on its springs at a frequency f=0.44 Hz and an amplitude A=0.58m. What is the total energy of this oscillation
A cylindrical glass of water (H2O) has a radius of 4.38 cm and a height of 12.3 cm. The density of water is 1.00 g/cm3. How many moles of water molecules are contained in the glass
A canoe has a velocity of 0.400 southeast relative to the earth. Find the magnitude of the velocity of the canoe relative to the river
The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.800, and the log has an acceleration of 0.800 m/s2. Find out the tension in the rope.
What is the electric potential energy of a system that consists of two protons 2.0×10?15 apart-as might occur inside a typical nucleus?
A pendulum, consisting of a ball of mass m on a light string of length 1.00 m, is swung back to a 45° angle and released from rest. What is the velocity of the ball immediately after the collision
A golf gall is dropped from a height of h1 = 3.45 m. After it bounces it only reaches h2 = 2.23 m. How much energy did the ball transfer to the environment during the bounce in Joules
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
A 38.0 kg box initially at rest is pushed 4.00 m along a rough, horizontal floor with a constant applied horizontal force of 125 N. determine the final speed of the box
a uniform stick 1.5 meters long With a massive 220 kg is pivoted at its center a 3.9 kg bullet is shot through the stick midway between the pivot, What is the angular speed of the spinning stick
Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates 20.0 times in 5.00 seconds and then stops spinning it. What is the angular acceleration of the salad spinner
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