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A cubical box is 0.82m on a side.
What are the dimensions of the box as measured by an observer moving with a speed of 0.80 c parallel to one of the edges of the box?
What is the volume of the box, as measured by this observer?
A rocket ship at rest in space gives a short blast of its engine, firing 90 kg of exhaust gas out the back end with an average velocity of 700 m/s.
A projectile is fired from the surface of the Earth with a speed of 200 meters per second at an angle of 30 degress above the horizantal. If the ground is level, illustrate what is the maximum height reached by the projectile?
A car is travelling at a constant speed of 31.1 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration mu..
A solid disk rotates in the horizontal plane at an angular velocity of 0.049 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
Consider a fusion reaction in which a proton fuses with a neutron to form a deuterium nucleus. How much energy is released in this reaction
What is the minimum uncertainty in position, in nm, of an electron whose velocity is known to be between 2.30×105m/s
In an old-fashioned amusement park ride, passengers stand inside a 5.1--diameter hollow steel cylinder with their backs against the wall. What is the minimum angular speed
The Hall voltage across a conductor in a 44mTmagnetic field is 1.9?V. What is the strength of the second field
It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
A point charge Qpt= 10nC is surrounded by an insulating material and stuffed inside a spgerical steel shell iwth inner radius R1=1cm and outer R0=2cm; What is the net charge of the steel shell
A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 521 N. As the drawing shows, Find the tensions in the rope to the left and to the right of the mountain climber
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