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Q1. A friend of yours is loudly singing a single note at 417 Hz while racing toward you at 25.7 m/s on a day when the speed of sound is 344 m/s. What frequency do you hear? (In HZ)? What frequency does your friend hear if you suddenly start singing at 417 Hz?
Q2. An aerosol can of whipped cream is pressurized at 440kPa when it's refrigerated at 3 C. The can warns against temperature in excess of 50 C. What is the safest pressure for the can?
Q3. An automobile engine slows down from 3900 rpm to 1500 rpm rpm in 4.0 s. determine its angular acceleration, assumed constant. Compute the total number of revolutions the engine makes in this time.
Find out the vertical component of the reaction force
Find density of the object
What is the potential difference
The Saturn's ring has a diameter of about 2.00x10^5km and the distance between the Earth and the Saturn is 1.40x10^9km. Based on your calculation on resolution power, will the ring be visible in telescope.
Conclude the electric field at the origin
Why does the base of a shuttle cock always lead in motion when hit with a racket. what is grocery carts final speed.
What is current flowing through the collider
What is the third fragment right after the explosion
What is the maximum displacement of the bridge deck?
A student pulls a box of books on a smooth horizontal floor with a force of 100 N in a direction of 37 degrees above the horizontal. If the mass of the box and the books is 40 kg, what is the normal force on box? a. 332 N b. 312 N c. 392 N d. 292 N
How much energy was released in an explosion
What is the speed of the center of mass
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