Physics, 17.07.2021 22:30 arionaking59p71cfc
URGENT
The image shows Earth's orbit around the Sun.
Which describes the changes in Earth's motion?
WO
х
O The speed increases from W to X because a
component of the gravitational force acts in the
direction opposite to the velocity.
O The speed increases from W to X because a
component of the gravitational force acts in the
direction of the velocity.
O The speed increases from X to W because a
component of the gravitational force acts in the
direction opposite to the velocity.
The speed increases from X to W because a
component of the gravitational force acts in the
direction of the velocity.
Answers: 3
Physics, 21.06.2019 22:00
•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?
Answers: 3
Physics, 22.06.2019 12:30
When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
Answers: 2
Physics, 22.06.2019 17:00
If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction
Answers: 3
URGENT
The image shows Earth's orbit around the Sun.
Which describes the changes in Earth's m...
Which describes the changes in Earth's m...
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