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world record for motorcycle acceleration. Calculate the magnitude of the record average
acceleration in m/s2.
A research historian is interested in finding sunken treasure in the Atlantic Ocean. She knows that her equipment is only good enough to recover items that are at a depth of 5 000 m or less. The speed of sound through the water is 1 530 m/s. While working, the sonar equipment detects a reflection that is of interest. The echo from the item takes 6.2 s to return to the sonar detector. Will she be able to retrieve this item?
a hot iron of mass 0.5 kg is dropped into a container filled with 5 kg of water.The container is made of 0.3 kg of iron initially at 25 celcius .The final equilibrium temperature is 30 celcius .Find the initial temperature of the hot iron
What happens to frequency of simple pendulum as it oscillations die down from large amplitude to small amplitude
two 4m long cars are moving along the same direction on a straight road with constant speed of 70km/h and 90km/h. if aliyu a passenger falls asleep when the faster car is 20m behind the slower car but wakes up after it is 20m ahead of the slower car. find how long he has slept.
The Moon has a diameter of approximately 3.476×103 m. Assuming the Moon is a
sphere, calculate the surface area in square kilometers
Citizens of some Western countries have been outraged over the consumption of dogs in certain Asian countries. Is this simply a matter of cultural differences in the attitudes towards and relationships with certain animals? Or is there a difference between the characteristics or capacities of the animals that we typically consume in North America compared to those consumed in other regions of the world. Is it more ethical to eat insects than mammals or are their ethical problems with eating them as well?
a) Write down the wave function for the first excited state of a particle in a one
dimensional box of length L. Calculate < x >and < px >for this state.
b) What is quantum tunneling? Calculate (i) the tunneling length and (ii) the tunneling
probability when an electron of energy 4.0 eV is incident on a potential barrier of height
10 eV and width of 0.2 nm.
