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Problem: The speed of sound in air is 343 m/s. What is the speed of a supersonic plane that travels at 1.90 times the speed of sound?
I need tutor help to solve the above problem and give your answer in kilometers per hour (enter first) and miles per hour. Use correct sig figs.
A girl and her bicycle have a total mass of 35 kg. At the topof a hill her speed is 5 m/s. what is her speed at the bottom
A baseball player stealing second base runs at 7.8 m/s. If he slides the last 3.6 m, slowing to a stop at the base, what's the coefficient of kinetic friction between player and ground
An object is located to the left of a lens, and a real image is formed to the right of the lens. Determine what is the focal length of the lens
A crude model of the human vocal tract treats it as a pipe closed at one end.Find the effective length of the vocal tract in a person whose fundamental tone is 550Hz . Sound speed in air at body temperature is 354 m/s.
A point source emits sound waves with a power output of 120 W. At what distance will the decibel reading be 140 dB, which is noise level of a loud indoor rock concert
an ideal monatomic gas is the working substance of a carnot engine. during the isothermal expansion the volume doubles.
Department Alpha had no beginning inventory. The department added direct materials of $100,000 and conversion costs of $150,000 during the month of July. Materials are added at the beginning of the process and conversion costs are added evenly thr..
a carnot engine with a hot-reservoir temperature of 380 degree c has the same thermal efficiency. what is the
The two charges in the figure above are separated by a distance d = 5.00 cm, and Q = +5.70 nC. Find the electric potential at B
find the rms speed and the average kinetic energy of a hydrogen atom at a temperature of 5.9 multiplied by 107 k. at
Capacitors C1= 13 uF and C2=25 u F are each charged to 15 V , then disconnected from the battery without changing the charge on the capacitor plates. estimate the potential difference across each capacitor
a square loop of wire with sides of 40 cm is in a uniform magnetic field perpendicular to its area. if the fields
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