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What is the peak current through the resistor if the emf frequency is 100 kHz ? Express your answer using two significant figures.
Biochemist have discovered more than 400 mutant varieties of hemoglobin, the blood protein that carries oxygen throughout the body. A physician studying a variety associated with a fataldisease firs
If a refrigerator door is left open in a room where the temperature is 30 degress C, assuming the room is perfectly insulated, and the refrigerator temperature is set at 10 degree C what will
A transformer has 1200 turns in the primary coil and 140 turns in the secondary coil. If the primary coil is connected to a 120 V outlet and draws 6.0×10-2 A , what are the voltage and current o
In the Lewis structure ofHOCH2CH2OH, how many valence electrons need to be shown and how many pairs of electrons are bonding and how many are non-bonding?
3 energy levels designated E9A), E(B), and E(C). The wavelength of the radiation emitted from the transitionE(C)-->E(A) is 500 nm. The wave length of the radiation emitted from transition E(B)--&
A sample of hydrogen gas wascollected over water at 36.0 °C and 862 mmHg. The volume of the flask was 9.50 L. Calculate the number of moles of H2 collected. (Vapor pressure of water at 36.0 °
Immunity, what are the classification of immunity and there types plus the immunisation schedule which are complete
If you simplify and treat each atom as a cube, (a) what is the average volume (in cubic meters) required for each iron atom and (b) what is the distance (in meters) between the centers of adjacent a
A gallon of gasoline releases about 2.0 x 10^8 J of energy when it is burned. How many gallons of gas must be burned to release the same amount of energy as is released when 0.4 lb of 235/92 U under
A high-voltage transmission line is made of bare wire; it is not insulated. Assume that the wire is 100 km long, has a resistance of 7.0 Ω , and carries 200 A .
A giant "egg" explodes as part of a fireworks display. The egg is at rest before the explosion, and after the explosion, it breaks into two pieces, with the masses indicated in the diagram, traveli
The 4 kg puck has a velocity of 3.00i m/s at one instant. eigth second later its velocity is (8i+10j)m/s. assuming the rocket engine exerts a constant horizontal force, find the components of the fo
A friend throws Olaf a ball of mass 0.400 that is traveling horizontally at 10.2 . Olaf's mass is 65.5 .A. If Olaf catches the ball, with what speed do Olaf and the ball move afterward?
A 310-g air track cart is traveling at 1.25 m/s and a 260-g cart traveling in the opposite direction at 1.33 m/s. What is the speed of the center of mass of the two carts?
A 60.0-kg man stands at one end of a 20.0-kg uniform 10.0-m long board. How far from the man is the center of mass of the man-board system?
After the collision, the 80.0-g puck moves in a direction that makes an angle of 45.0° with the original direction of motion and the 100-g puck moves at an angle of 12.0° in the opposite dir
Two ice skaters push off against one another starting from a stationary position. The 45-kg skater acquires a speed of 0.375 m/s. What speed does the 60-kg skater acquire?
Consider a 1.0 kW fuel-cell assembly operating at 50% efficiency. (a) How many litres of water does it produce per hour? (b) If its fuel is natural gas (CH4), what fraction of a cubic meter does it
The final velocity of train car B is 2.0 m/s traveling East. What is the final velocity of train car A? Or does it come to complete stop after the collision?
Calculate the speed of a proton that is accelerated from rest through an electric potential difference of 158 V.
When you last stopped, you noticed that the snow was coming down vertically, but it is passing the windows of the moving car at an angle of 30 degrees to the horizontal. Estimate the speed of the sn
Suppose that you take another 0.4 s to realize your danger and begin braking. If you too brake at 5 m/s2, what is your speed when you hit the police car?
(a) What must be the magnitude of the resulting constant deceleration if a collision is to be just avoided?
(a) Find the speed of the block just as it leaves the spring. (b) Find the total distance the block will slide. (c) Describe all of the energy transformations and/or transfers that occur during this