Which of the following statements is true? give all correct answers
a) if the accelerat...
Physics, 21.10.2019 23:10 dorafacegirl
Which of the following statements is true? give all correct answers
a) if the acceleration of a body is constant in a given inertial reference frame (a frame of reference with constant velocity), it is constant in all other inertial reference frames.
b) in projectile motion when air resistance is negligible it is never necessary to consider 3d motion rather than 2d motion.
c) if the elevation angle of a projectile at launch increases, its range decreases.
d) it is possible to be accelerating if you are traveling at a constant speed.
e) you are driving a distance directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. your car will hit the crate before the crate hits the road if you neither brake nor swerve.
f) if the elevation angle of a projectile at launch increases, its time-of-flight until impact also increases.
Answers: 3
Physics, 22.06.2019 10:10, sadie960
Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.
Answers: 1
Physics, 22.06.2019 15:10, Bgreene2377
Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k
Answers: 1
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