Galaxies are moving away from us and into the vast, empty space of the outer universe beyond the Big Bang
Indicate whether the statement is true or false
FALSE
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Planet formation happens in newly formed solar systems over the course of about 100 million years
Indicate whether the statement is true or false
Angular momentum is greater for a satellite when it is at the
A) apogee (farthest point). B) perigee (nearest point). C) same at apogee and perigee
A race car starts from rest on a circular track of radius 400 m. Its speed increases at the constant rate of 0.500 m/s2. At the point where the magnitudes of the radial and tangential accelerations are equal, determine (a) the speed of the race car, and (b) the elapsed time.
What will be an ideal response?
The angle that a swinging simple pendulum makes with the vertical obeys the equation
?(t) = (0.150 rad) cos[(2.85 rad/s)t + 1.66]. (a) What is the length of the pendulum? A) 0.15 m B) 0.83 m C) 1.21 m D) 2.02 m E) It cannot be determined from the information given. (b) What is the mass of the swinging bob at the end of the pendulum? A) 2.85 kg B) 1.66 kg C) 0.454 kg D) 0.150 kg E) It cannot be determined from the information given.