3 5d d 2 2 d 1 d. 3d Using the kinematic equations, calculate the time it takes for each of the equally-spaced masses in the left diagram to hit the ground. Perform the same calculation for the staggered mass system in the right diagram. How does the time change between impacts of successive masses in both scenarios? Does this agree with your observations?

This is for my astronomy class.  I don't even know where to start: using the relationship “force equals mass times acceleration,” write an answer the following question: if an object with mass X grams is being accelerated at Z centimeters per second squared, then how much force is being exerted on the object?  Show your calculations.

PM2: please answer question and explain each step with reasoning

Refer to the picture below.

The MAVEN orbiter orbits Mars with a period of 4.5 hours. How far (in km) above the surface of the planet is it? (The mass of Mars is 6.42 × 1023 kg, and the radius of Mars is 3.40 × 10³ km.) Part 1 of 3 The period of the orbiter's orbit can give us the speed at which the orbiter orbits the planet. We imagine the orbiter tracing a circle around the planet I a certain height, the speed is Part 2 of 3 V = 2πr P Next, we combine this with the circular velocity equation to determine the height above the planet's surface. 2πr P 202 = GM r GM r Squaring both sides and solving for r gives the following equation. What is the exponent for r? GM 4π² Submit Skip (you cannot come back)

If by some horrific miracle, the Sun was instantaneously evaporated into nothing at the moment drawn, how would the planet’s motion change, if at all? Explain your reasoning. Can we use the kinematic formulas to study the orbits of the planets? Why or why not?

The Merry-Go-Round A horizontal platform in the shape of a circular disk rotates freely in a horizontal plane about a frictionless, vertical axle (see figure). The platform has a mass M- 100 kg and a radius R= 1.8 m. A student whose mass is m - 64 kg walks slowly from the rim of the disk toward its center. If the angular speed of the system is 2.1 rad/s when the student is at the rim, what is the angular speed when she reaches a point r- 0.40 m from the center? As the student walks toward the center of the rotating platform, the angular speed of the system increases because the angular momentum of the system remains constant. M SOLUTION Conceptualize The speed change here is similar to those of the spinning skater and the neutron star in preceding discussions. This problem is different because part of the moment of inertia of the system changes (that of the ---Select---v) while part remains fixed (that of the ---Select---v). Categorize Because the platform rotates on a frictionless…

I don't know how to solve #3 #1 Orbital DynamicsSuppose a satellite is in orbit about the Earth at a height of 2500 km above the surface of the Earth. If the radius of the Earth is 6370 km, what is the radius of the satellite’s orbit? Recall that r = RE + H. #2 Orbital Dynamics In #1, what is the period of the satellite’s orbit in hours? It may be helpful to remember that G = 6.67 × 10^−11 kg−1m^s^−2, while mass of Earth = 5.96 × 10^24 kg. #3 Orbital DynamicsIn #1, what is the magnitude of the force of gravity if the satellite has a mass of 550 kg?  A. 0.00 N B. 1,920 N C. 2,780 N D. 3,610 N

Use the diagram and the fact that Planet A has a nearly circular orbit while Planet B has a highly elliptical orbit to answer the following questions. Use examples of Newton’s and Kepler’s laws in your answers. a. Does Planet B travel faster or slower when it is closest to the Sun than at other times? Explain your answer. b. Which planet takes longer to orbit the Sun? Explain your answer. c. Does the gravitational attraction between these planets increase or decrease as their orbits move them closer together? Explain your answer.  d. Which planet has the highest average orbital speed? Explain your answer. e. Which planet travels at about the same speed throughout its orbit? Explain your answer.

Please answer both parts of question C.