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1. An object can have constant speed without constant velocity, but it can't have constant velocity without constant speed. Explain.
2. You are wearing sandals and running across a plaza. The phone "pager" you are wearing on your hip falls off and lands on your toes painfully. How could this have happened? Shouldn't the pager have fallen behind you where it would have presented no danger to your feet?
3. If a person stands on a stool, his weight is a downward force of a certain size. The stool pushes up with a force. Are they of equal size and oppositely directed? Are they an action-reaction force pair? Elaborate.
4. A large truck and a Volkswagen "bug" have a head-on crash. Answer the following questions, and explain your answers.
a. Which vehicle experiences the larger impact force.
b. Which vehicle experiences the larger acceleration?
A solenoid is constructed with a total of 1500 turns wound around a length of 25 cm. A constant current of 1.7 A flows through the solenoid. Calculate the magnetic force on the proton
A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. Find the value of the period of its oscillation
A particle of mass m is confined to a circle of radius a, but is otherwise free. A perturbing potential H=Asinφcosφ is applied, where φ is the angular position on the circle. Find the correct unperturbed wave functions for the two lowest states of ..
a child tosses a ball straight up. she says the ball is moving away from her hand because the ball feels an upward
A monkey in a perch 20m high in a tree drops a coconut above the head of a zoo keeper as he runs with a speed 1.5m/s beneath the tree. How far behind him in metres does the coconut hit the ground?
You are standing 5 m from a tractor when the operator starts it ip the intensity is 3 x10^-5 W/m^2. How much did the sound level change
The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.47 rad/s2. Calculate the total angle through which the wheel has turned
violet light and red light travel through air and strike a block of plastic at the same angle of incidence. the angle
When a certain photoelectric material is illuminated with red light (?=715) and then blue light (?=400), calculate the work function of the material
Suppose the shuttle increases its speed so that it has a length of 36.1 m when viewed by a stationary observer. How long would it take to complete one orbit
A high-voltage copper transmission line with a diameter of 2.60 cm and a length of 130 km carries a steady current of 1.03 103 A. what time interval does one electron travel the full length of the line
An arbitrary mass of 0.200 kg is connected to a light spring with force constant 5 N/m and is free to oscillate on a horizontal, frictionless surface. What is the maximum speed of the mass
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