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A football spends a total of 5 seconds in the air. It reaches a peak height of 20 meters. How long does it take to reach its peak height? The football has a range of 80 yards. What is its horizonta
A hiker walks 300 m North then 500 m West then goes South for 250 m. What is the hikers final displacement?
It is pulled to an angle of 3.80 degrees and released to swing as a pendulum. a student with a stopwatch finds that 8.0 oscillations take 11.0 seconds.
Find the flux of the Earths magnetic field of magnitude 5.00 10-5 T through a square loop of area 30.0 cm2 (a) when the field is perpendicular to the plane of the loop, (b) when the field makes a 5
What is the acceleration a driver feels when the car he is in goes from 50 m/s to 30 m/s in 5 s ?
What causes the differences of the values of pH of the bromthymol solution?
What is the average speed that a boat travels while uniformly accelerating from 10 m/s to 30 m/s ?
The speed of the aircraft in the absence of a wind is 205 km/h. In what direction should the aircraft head? What should its speed relative to the ground be?
A 280 block on a 50.0 -long string swings in a circle on a horizontal, frictionless table at 80.0 . What is the speed of the block?
Describe the process of digestion Describe the process of digestion
Derive an expression relating impulse and linear momentum. In a safety test, a car of mass 1000 kg is driven into a brick wall. Its bumper behaves like a spring (k = 5 × 106 Nm-1) and is comp
How have global competition and technology advances changed business conditions and leadership challenges?
Describe the process of digestion, food journey from mouth to anus in 200 words
One tire is inflated to a pressure of 40 psi and goes a distance of 18.1m ; the other is at 105 psi and goes a distance of 92.4m . Assume that the net horizontal force is due to rolling friction onl
To measure the population of lake trout in a 250 hectare lake, 200 individuals were netted and marked with a fin clip,
Explain briefly if the following statement is correct or not, and why? "Gravitational forces are ignored in problems on the atomic scale because gravitational forces and electric forces cannot act
During a physics experiment, helium gas is cooled to a temperature of 12.0 at a pressure of 0.130 . What are (a) the mean free path in the gas, (b) the rms speed of the atoms, and (c) the average e
Your opponent is operating a model helicopter in a simulated battle. You have a gun that fires paintballs at a speed of 40 m/s. The helicopter is hovering 12 m above the ground and is 17 m from you.
Find the magnitude of the electric field at points on the positive x-axis. Express your answer in terms of the variables q, x, a and appropriate constants.
Write the template strand for EMCV 16 mer showing the promoter region , start and stop codon using t7 RNA polymerase
A supertanker with the mass of 3.36 × 109 kg is moving with a constant velocity. Its engines generate a forward thrust of 4.11 × 105 N. Determine (a) the magnitude of the resistive forc
The track at Akron's Derby Downs, where the national championship is held, begins with a 55ft-long section tilted 13° below horizontal.What is the maximum possible acceleration of a car moving down
What is the birth rate of Annelid worms?
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 77.0 rev/min in 3.40 s?
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth?