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An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. How far (in km) must he now travel to reach
A proposed space station includes living quarters in a circular ring 52.0 m in diameter. At what angular speed should the ring rotate
What is the Reynolds number for the fastest falling ball in the experiment. Use the same data as in problem 1, glycerin density of 1.30 g/cm^3
a thin lens of focal length 30.0 cm and is used to form an image that is twice the size of the object. Find the object position
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. What force does the winning player exert on the ground to move forward if hi
A 0.17kg ball is thrown vertically upwards with a velocity of 34m/s at the edge of a 22m cliff. Neglect air resistance. calculate The height to whcih the ball rises above the cliff
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. How do the two sets of values compare
A circular loop of conducting wire is placed in a magnetic field of 0.45T while the free ends of the wire are attached to a 30ohm resistor. What are the magnitude and direction of the current in the
In the previous question, assume that the applies forces are 10N @ 41 degrees and that Force 2 acts at 138 degrees. Calculate the magnitude of the normal force from the floor
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.793 m and 2.97 kg, what is its rotational kinetic energy
An electron confined in a one-dimensional box is observed, at different times, to have energies of 32.5 eV, 57.8 eV, What is the length of the box
The radius of the hydrogen atom is 0.053 nm. find the Coulomb force between the electron and the proton in the atom
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What is the speed of the galaxy relative to earth
An escaped convict runs 1.70 km due east of the prison. He then runs due north to a friend's house. what is the direction of his total displacement vector with respect to due east
Two cars of 2000 kg each collide head-on while traveling at 75.0 miles per hour. What is the temperature increase of the cars
A rock is tossed straight up with a speed of 29{\rm m}/{\rm s}. What is the rock's velocity as it hits the bottom of the hole
You throw a 5-kg ball from a platform releasing the ball at a height of 5 meters with a speed of 10m/s at an angle of 30 degrees with respect to the horixontal. Find the maximum height of the ball a
Your 70kg friend is standing on the outer edge of a merry go round with moment of inertia 695kg*m^2, what will be the new angular velocity
A puck mass m=0.4 kg is sliding on a frictionless surface at a speed v=2.50 m/s in the x direction and I hits another puck o mass m= .2 kg at rest at the origin. what are the final speeds of the par
You throw a 1kg ball out of a window 12 m above the ground. It lands 5 m from the building after 1 s. ignore air resistance, How fast was it traveling when it hit the ground
A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. Calculate the initial acceleration of the system
A heavy sled is being pulled by two people. The coefficient of static friction between the sled and the ground is %u03BCs = 0.579, find the minimum rope tension required to get the sled moving
A green photon ( = 551 nm) is absorbed by a free hydrogen atom, initially at rest. What is the recoil speed of the hydrogen atom
A 8.10-kg hanging object is connected by a light, inextensible cord over a light, find the tension in the string
The graph of two cars that collide shows that they intersect at a point 5.5m on a distance/time graph. The first car has a velocity of 0.39m/s. what does the steepness of the slope indicate