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1. A bolt of lightning lights up the sky and 1.5 s later you hear the thunder. How far did the lightning strike from your position? 2. A supersonic aircraft passes 200 m overhead on a day when the temperature is 26-C. Estimate how long it will be before you hear its sound after it passes directly overhead and how far the aircraft is from you if its Mach number is
(a) 1.68(b) 2.02(c) 3.49
3. A small-amplitude wave travels through the atmosphere creating a pressure rise of 5 Pa. Estimate the temperature rise across the wave and the induced velocity behind the wave.
Each plate of a parallel-plate capacitor is a square of side 0.0339 m and the plates are separated by 0.407 × 10-3 m. Find the electric field strength inside the capacitor
Use graphical techniques to find out the direction of the dog’s resultant displacement vector. Give the direction of the resultant displacement in degrees (out of 360).
what is the probability that an event will occur between z -0.46 and z 2.21 on the standard normalized
An accelerometer in a control system consists of a 3.65-g object sliding on a horizontal rail. Find the force constant required for the spring
Water flows through a horizontal pipe of cross-sectional are 10 cm2 at a pressure of 0.25 atm. Find what is the pressure at the valve
The large piston in a hydraulic lift has a radius of 250 cm2. Obtain what force must be applied to the small piston with a radius of 25 cm in order to raise a car of mass 1500 kilogram
A basketball player makes a jump shot. The 0.603 kg ball is released at a height of 2.07 m above the floor with a speed of 7.19 m/s. What is the work done on the ball by air resistance
A soccer ball is kicked with an initial horizontal velocity of 12.0 m/s and an initial vertical velocity of 19.0 m/s, How far from where it was kicked will the ball land
A metal surface illuminated by a light source with a variable frequency exhibits the photoelectric effect. What is the work function for the metal in electron volts
Two stars are 5.8 × 1011 m apart and are equally distant from the earth. Find the maximum distance that these stars could be from the earth
A particular guitar string oscillating in its fundamental mode produces a 330 Hz frequency. The string's length is 63.5 cm. At what speed do transverse waves move along this string
1 three capacitors 4.0 6.0 and 8.0 microf are connected in series across a 50.0-v battery. find the voltage across the
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