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A plug in an electrical device consists of two metal conductors that are seperated by a distance of 75cm. An electric field of 4.7x10^7 V/m exists when a current passes between them. What is the magnitude of the potential difference between the conductors?
What is the time of oscillation of block
If the car is moving at 30 m/s at the bottom of the dip, its mass is 800 kg, and the radius of curvature for the dip is 20 m, what is the normal force acting on the car in the dip
The maximum intensity per unit wavelength of an ideal blackbody occurs at the same wavelength as the electromagnetic radiation absorbed in a transition from the fourth excited state to the sixth excited state in a hydrogen atom
An isolated hollow spherical conducting shell has a charge of 10^-6 C. In some manner, a point charge of 3*10^-6 C is placed inside the cavity of the shell,find the charge on the inner surface of the shell
One way to monitor global warming is to measure the average tempo f the ocean . Researches are doin ghtis by measuring the time ittakes sound pilses to travel underwater over large distance.
a 72 kg block is hanging in the air suspended by a rope, tied up and over a frictionless pully, to a second block of unkown mass. calculate the mass of the block on top of the cliff
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
Within cells, small organelles containing newly synthesized proteins are transported along microtubules by tiny molecular motors called kinesins. What force does a kinesin molecule need to deliver in order to accelerate an organelle with mass 0.01..
A man riding a bicycle 140kg together is traveling at 8.6 m/s due north when he is brought to a stop in .50 seconds by a gazelle running to the south. Calculate the average force exerted on the gazelle
A T-bar tow is used to pull 80 skiers up a 600-m long slope inclined at 15.0 degrees to the horizontal at a speed of 2.5m/s. Find the motor power required to run the T-bar
two blocks are in contact on a frictionless table. a horizontal force f is applied to m2. if m1 1.57kg m2 3.26kg and
Threshold freq. of metal isf0. When the light of freq. 2f0 is incident on the metal max velocity of electrons is v1 and v2
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