Problem 4: During a snowball fight two balls with respective masses of 1.6 and 0.4 kg
are thrown in such a manner that they meet with their velocities forming a 30° angle.
After the collision, the two snowballs combine to form a single mass. The speed of each
snowball just before the collision is 15 m/s.
(a) The speed of the combined snowball immediately after collision is
(b) The kinetic energy of the combined snowball (with mass 2 kg) is
Answers: 1
Physics, 22.06.2019 03:50, cyberdac01
Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
Answers: 1
Physics, 22.06.2019 06:30, kalialee2424
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
Physics, 22.06.2019 18:00, NotYourStudent
Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point
Answers: 1
Physics, 22.06.2019 20:30, sza2016
This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.
Answers: 1
Problem 4: During a snowball fight two balls with respective masses of 1.6 and 0.4 kg
are thrown...
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