Sun Data mass, m, =1.98855 - 10° kg radius, r, = 6.9634 10 m Venus Data mass, m, = 4.8675 - 10“ kg radius r, = 6.0518 - 10* m sun-venus, mean separation r = 1.08159 - 10" m orbital period, how long it takes to orbit the sun, t, = 224.701 Earth days Questions 1) Using the orbital period and the mean center to center distance of the planet from the Sun, calculate the orbital speed of Venus as it traces out its annual circle around the Sun. Select the answer that's closest to the calculation from the list below. A) 5571.14 B) 3.50205 - 10* C) 2.10027x10€ D) 1.26016x 10°: E) 3.02439 x 10° = F) 3.50045 - 10*= G) 2.97853 - 10= 2) Calculate the centripetal force necessary to hold Venus in its stable, constant- speed orbit. Enter the magnitude of the force in standard units, and do not include the unit in the answer text. Also, you can enter numbers in scientific notation using the convention that the capital letter E represents "10^," so to enter the number 1.234 × 103 you can write 1.234E23. 3) Using Newton's universal law of gravitation, calculate the magnitude of the

Hey what’s the answer to this

Suppose a 87.5kg sprinter acccerlates from rest to 11m/s in 3.1 s a)what is the power output in watts of the sprinter b) what is the power output in horsepower of the sprinter

Which of the following is NOT an energy unit? (choose one best) a. watt x sec b. watts c. joules d. N x m

I am extremly confused on this please help me.

Which of the 8 standard physical forms of energy can be present in our own bodies? (choose as many as may exist) (a) thermal. (b) electromagnetic (c) radiant. (d) chemical. (c) kinetic. (f) elastic (g) nuclear (h) gravitational

Prove that V=Work/Change

a) how much net work is required to accelerate a 1135-kg car from 18 m/s to 40 m/s? b) how much net work is required to accelerate a 955-kg car from 17 m/s to 45 m/s? c) how much net work is required to accelerate a 1089-kg car from 16 m/s to 36 m/s?

E21) a)Write the work done by a conservative force in terms of its potential energy. b)In what direction are forces pointing to be considered centripetal? c)In a system of interacting particles, what conservation law results when ∑Fiext=? d)Anobjectexperiencingseveralforcesresultinginsomedisplacement.What is the net work done by these forces equal to If the work of one of these forces is path-dependent, then what is not conserved? e) If a frictional force causes the total mechanical energy of a system to decrease, then     I) what happens to the system’s total internal energy?    ii) what is truly conserved?

If the cart weighs 6000N, what is the potential energy at point A?