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A window in a house is rectangular, with height 49 cm and width 29 cm. The pressure inside the house is normal atmospheric pressure when a hurricane arrives and the wind speed outside is 79 m/s (about 174 mi/h). (Assume the air temperature is 20°C.)
What is the force on the window?
N
A 4 kg block is acted upon by three horizontal forces. 10n (to left) 5n(short arrow to right) 25n to right. what is the net horizontal force acting on the block? what is the horizontal acceleration of the block?
At a particular instant of time a light beam traveling in the positive x direction, find the direction of the electric field and explain
strikes the wooden block of a ballistic pendulum, as shown. The block has a mass of 270 g. Find out the speed of the bullet/block combination immediately after the collision.
What percentage of the power of the battery is dissipated across the internal resistance and hence is not available to the bulb
A boy on board a cruise ship drops a 30.0 g marble into the ocean. If the resistive force proportionality constant is 0.500 kg/s, what is the terminal speed of the marble in m/s?
A flat sheet of crystalline quartz has a thickness of 1.6 cm. It is on top of the flat sheet of diamond that has a thickness of 2.10 cm. Light strikes the crystalline quartz perpendicularly and travels through it and then throughout the diamond.
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
The temperature of a copper bar rises by 10.0°C when it absorbs 2.03 kJ of energy by heat. The mass of the bar is 525 g
A cylinder of mass 8.0 kg rolls without slipping on a horizontal surface. At a certain instant its center of mass has a speed of 11.0 m/s. Determine the translational kinetic energy of its center of mass
In an L-R-C series circuit, the rms voltage across the resistor is 28.0V , across the capacitor it is 91.0V, What is the rms voltage of the source
Explain the distinction between reimbursement grants and entitlements. Explain how does this distinction affect the way each type of grant is accounted for?
Two long, parallel wires, each having a mass per unit length of 40 g/m, are supported in a horizontal plane by strings 6.00cm long. When both wires carry the same current I.
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