Aprojectile is launched horizontally east at a speed of 29.4 m/s towards a wall 88.2 m away. what is the velocity of the projectile at the moment it strikes the wall? a. 29.4 m/s down b. 29.4 m/s east c. 29.4 m/s at 45(degrees) down from horizontal toward the east d. 41.6 m/s at 45(degrees) down from horizontal toward the east
Answers: 1
Physics, 21.06.2019 19:00, dasiaflowers85
When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
Answers: 3
Physics, 22.06.2019 13:20, monkeygaming274
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
Physics, 22.06.2019 15:30, ayoismeisalex
What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology
Answers: 2
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