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The fastest spacecraft ever launched. The New Horizons mission to Pluto had a long way to travel: about 40AU. Even though it's traveling at an average speed of about 20 km/sec, it took years to get there.
a) About how far did it travel to Pluto in kilometers?
b) How long did it take, in years? (Do a calculation)
c) From there, how long did its radio signal take to reach Earth, traveling at the speed of light (3x108 m/s)?
An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 12.0 m if her initial speed is 2.40 m/s. What is the free-fall acceleration on the planet
Assuming the impact to be perfectly plastic (e = 0), determine the angular velocity of the plate immediately after the impact.
What is the mass of the CORE of the Sun?
A drinking fountain shoots water about 14 cm up in the air from a nozzle of diameter 0.60 cm. What gauge pressure does the pump have to provide
A rubber ball of mass 39.0 g is dropped from a height of 1.80 m onto a floor. find impulse was applied to the ball during the collision
An apple falls from a tree and takes 4 s to reach the ground as reported by the earth-bound observer. how long did it take the apple to fall
An X-ray photon with a wavelength of 0.120 nm scatters off a free electron at rest. What is the kinetic energy of the scattered electron
A car is traveling at a constant speed of 42.5 m/s. It passes a police officer on a motorcycle. How long does it take the officer to catch up with the car
A wire 25.1 m long and 6.00 mm in diameter has a resistance of 15.0 m. A potential difference of 27.0 V is applied between the ends. Calculate the resistivity of the wire material
A weather balloon contains 12.0 m3 of hydrogen gas when it is released from a location at which the temperature is 22°C and the pressure is 101 kPa. what is the new volume of the balloon
A velocity selector has a magnetic field of magnitude 0.32 T perpendicular to an electric field of magnitude of 0.34 MV/m. What must be the speed of a particle for it to pass through undeflected
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring among them, as seen in the figure below.
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