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Suppose you are planning a trip in which a space craft is to travelat a constant velocity for exactly eightmonths, as measured by a clock on board the spacecraft, and thenreturn home at the same speed. Upon return, the people on earth will have aged exactly one hundred years.According to special relativity, how fast must you travel? (Express your answer to at least 5 significant figures as a multiple ofc -- for example, 0.95585c.)
Two metal plates are held together by two steel rivets, each of diameter 0.24 cm and length 1.3 cm. How much force must be applied parallel to the plates to shear off both rivets?
Standing on the ground 2.7 m from the wall of a building, At what speed should you throw the package so it just barely reaches the window
or a given initial projectile speed, For what other launch angle will the projectile have the same range
when mass m is at the position shown it is sliding down the inclined part of a slide at a speed of 2.27 ms. the mass
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons). What is the force between the two alpha particles when th..
A 0.50 kg physics book with dimensions of 25 cm 20 cm is on a table. What force does the book apply to the table
a ball is thrown straight up with a speed of 30 ms. a. how long does it take the ball to reach the maximum height? b.
An airplane is flying with a velocity of 82 at an angle of 25 above the horizontal. When the plane is a distance 125 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will ..
A block that has a mass M = 4.25 kg is hanging at rest on a light string. A projectile with a mass m = 250 g moving horizontally strikes M and sticks to it. The block and its projectile swing up and the center of mass rises a distance h = 12.0 cm. Th..
A hockey player hits a punk so that it comes to rest in 9s after sliding 30 m on the ice. Determine (a) the initial velocity of the punk, (b) the coefficient of friction between the punk and the ice.
A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.00 s later. Find the depth of the well if the air temperature is 6.0°C
Identify the equation below which is dimensionally incorrect. A, x, y and r have units of length. k here has units of inverse length. vo and v have units of velocity. a and g have units of acceleration. w has units of inverse time.
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