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A puck is sliding without friction on the ice at a speed of 2.48 m/s. It collides with a second puck of mass 1.5 times that of the first and moving initially with a velocity of 1.86 m/s in a direction 40degrees away from the direction of the first puck. After the collision, the first puck moves at a velocity of 1.59 m/s in a direction at an angle of 50degrees from its initial direction. Find the speed and direction of the second puck after the collision.
A star in a distant galaxy is located at a distance of 20 kpc from the center of that galaxy. What is the total mass of the dark matter in this galaxy
An airplane flies 200 km due west from city A to city B and after that 295 km in the direction of 26.5° north of west from city B to city C.
W hat is the magnitude of an average force exerted on the superball by the sidewalk. what is force caused by the water on the bottom.
Molecules act as tiny springs and have vibration energy and frequency. The frequency of CO molecule is 6.42 x 1013Hz. Calculate the spring constant using the effective mass
A car is speeding up uniformly at a rate of 0.600 m/s2 while traveling counterclockwise around a circular track of radius 495 m. find the direction of the total acceleration of the car
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
What is the volume of blood pumped by your heart in one day,
A 52dB sound wave strikes an eardrum whose area is 5.0×10?5m^2 . a)How much energy is received by the eardrum per second? b)At this rate, how long would it take your eardrum to receive a total energy of 7.0J?
Coherent light with wavelength 599 passes through two very narrow slits, and the interference pattern is observed on the screen a distance of 3.00 from the slits. The first-order bright fringe is a distance of 4.84 from the center of the central b..
A simple pendulum consists of a ball connected to one end of a thin brass wire. find the change in the period of the heated pendulum
If a force of 300N is exerted upon a 60 kg mass for 3 seconds, how much impulse does the mass experience
A plane accelerates from rest at a constant rate of 5.00 along a runway that is 1800 long. What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway
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