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Your opponent, in a desperate attempt to return your wicked serve, makes a high lob of the tennis ball that causes it to land out of bounds on the asphalt course behind you. It then bounces so that it just barely clears a 3.52 m wall that is 2.22 m from where the ball hit the asphalt and that is separating your court from the next. In the adjacent court play is suddenly interrupted by the ball leaving your court and bouncing 1.82 m up into the action. How far horizontally, in meters, does the ball travel in this second bounce? Hint: Use the trajectory of the first bounce to get the horizontal speed, and assume that it remains unchanged between bounces
A mountain climber friend with a mass of 80 kg pondersthe idea of attaching a helium balloon to himself to effectivelyreduce his weight by 25% when he climbs. He wonders what heapproximate size of such a balloon would be.
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. What is the average net force (magnitude and direction) exerted on the ball by the cushion
You have an uncharged capacitor (12 x 10-6 F) and a resistor (1000 ohms) connected to a battery of 200 V at time t=0, What is the final charge on the capacitor
The speed of an alpha particle is determined to be 1.55×106 m/s. what is the magnitude of that potential
Power dissipated by the circuit
An ideal gas initially at 408 Kis compressed at a constant pressure of 34 N/m2 from a volume of 3.0m3 to a volume of 1.8 m3. What is the change in internal energy of the gas
White light is shone on a very thin layer of ice (n = 1.31), and above the ice layer, What is the thickness of the ice layer
A swimmer bounces straight up from a diving board and falls feet first into a pool. What is her velocity when her feet hit the water
The density of gasoline is 7.30 × 102 kg/m3 at 0°C. Its average coefficient of volume expansion is 9.60 × 104 (°C)1, and note that 1.00 gal = 0.00380 m3. Estimate the mass of 11.0 gal of gas at 0°C
a car at the indianapolis-500 accelerates uniformly from the pit area going from rest to 290 kmh in a semicircular arc
A uniform magnetic field is 30 degree to the plane of a circular loop 10 cm in diameter made of copper wire (diameter 2.5 mm). At what rate must the magnetic field change with the time
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