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Calculate the pressure variation corresponding to a sound insensity of 10-16 W/cm2. (The density of air at 0° C and 1 atm pressure is 1.29 x 10-3 g/cm3; for the speed of sound use the value 3.3 x 104 cm/sec.)
If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 2.2 m on Earth, what would be his maximum range on the Moon, where free-fall acceleration is g/6 and g = 9.80m/s2.
A circular hole in an aluminum plate is 3.263 cm in diameter at 0.000°C. What is its diameter (in cm) as the temperature of the plate is raised to 129.8°C? Give the answer to four significant figures. The linear expansion coefficient of aluminum i..
A fireman 44 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22° above the horizontal. If the speed of stream as it leaves the hose is 40m/s, at what height will stream of water strike the buil..
The 1900-turn coil in a dc motor has an area per turn of 1.1 10-2 m2. The design for the motor specifies that the magnitude of the maximum torque is 5.8 N · m, What is the current in the coil
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, Determine the maximum speed and the earliest time
Capacitors C1 = 3450 nF and C2 = 700 nF are initially connected in parallel and hold a combined charge of Qtoti = 783 nC. Find the total charge Qtotf and total energy stored in the final state
An object is placed 2.0 cm from a converging lens with focal length 1.5 cm. Determine the location of the final image
A cardinal (Richmondena cardinalis) of mass 4×10-2 kg and a baseball of mass 0.143 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum.
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. find how deep is the submarine
Electrons are accelerated from rest through a potential difference of 350 V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. Estimate the period of this circular path
Two resistors are connected in a series to a 15V battery. The voltage drop across the first resistor is 3.5V, What is the resistance of the two resitors
A weather balloon contains 12.0 m3 of hydrogen gas when the balloon is released from a location at which the temperature is 22.0°C, what is the new volume of the balloon
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