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1. A bird can fly 29km/h. How long does it take to fly 2.8km?
2. A person jogs eight complete laps around a 400-m track in a total time of 15.4min. Calculate the average speed, in m/s. and Calculate the average velocity, in m/s. 3. At highway speeds, a particular automobile is capable of an acceleration of about 2.0m/s2. At this rate, how long does it take to accelerate from 55km/h to 120km/h ?4. A world-class sprinter can reach a top speed (of about 11.2m/s ) in the first 18.0m of a race. What is the average acceleration of this sprinter? and How long does it take her to reach that speed?5. A car slows down uniformly from a speed of 29.0m/s to rest in 7.80s. How far did it travel in that time? 6. A car traveling 85km/h slows down at a constant 0.54m/s2 just by "letting up on the gas."
Calculate the distance the car coasts before it stops.Calculate the time it takes to stop.Calculate the distance it travels during the first second.Calculate the distance it travels during the fifth second.
7. A stone is dropped from the top of a cliff. It is seen to hit the ground below after 3.49s. How high is the cliff? 8. A kangaroo jumps straight up to a vertical height of 1.41m. How long was it in the air before returning to Earth? 9. A stone is thrown vertically upward with a speed of 16.6m/sfrom the edge of a cliff 75.0 m high. How much later does it reach the bottom of the cliff? Express your answer to three significant figures and include the appropriate units. What is its speed just before hitting? What total distance did it travel?
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 8.00 mm. The nozzle shoots out water moving at25.3 m/s. What is the mass flow rate? At what speed is the water in the hose moving?
what will be the induced emf magnitude in the short coil. A 77.9 kg fireman slides down a 4.13 m pole by applying a frictional force of 343 N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches the ground.
A moving, and accelerating, streetcar travels 20.0 m during a street crossing in 2.40 s. It continues to accelerate after this crossing until it reaches a speed of 32.0 m/s.
A 12 Volt battery remains connected to a parallel plate capacitor with a plate area of 0.294 m2 and a plate separation of 5.24 millimeter. Obtain the electric field between its plates
A solenoid with 1200 turns per meter has a diameter of 9.00 cm. A current I = 2.57 A flows in the clockwise direction, Find the magnitude of the magnetic flux through the loop
If a electron after being accelerated by a potential difference of 100 V enters in a uniform magnetc field of 1T perpendicular. Calculate its radius of circular path described by it
A 0.525 kg ball starts from rest and rolls down the hill with uniform acceleration, travelling 150 m throughout the second 10.0 rm s of its motion.
A distant galaxy emits light that has a wavelength of 699.1 nm. On earth, the wavelength of this light is measured to be 701.6 nm, Decide whether this galaxy is approaching or receding from the earth
Laser light of wavelength 6.30x10^2 nm is incident upon two narrow slits separated by 0.17 mm. how far apart are the interference fringes
A proton moves through a uniform magnetic field given by B= (10i ? 18.0j + 30k ) mT. At time t1, the proton has a velocity given by = v xi + vyj + (2000 m/s)k and the magnetic force on the proton is FB = (3.77 e-17 N)i + (2.10 e17 N)j . (a) At that i..
A train travels due south at 60 m/s. It reverses its direction and travels due north at 60 m/s. What is the change in velocity of the train
You are working for a shipping company. Your job is to stand at the bottom of a 5.5m -long ramp that is inclined at 39 degrees above the horizontal. What speed do you need to give a package
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