A spacecraft with a mass of 5000kg is in circular orbit 2000km above the surface of mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4000km above the surface? (hint Total Energy = Ep+ Ek)

6) The Zarya Module (mass = 1.93x10 4kg) was launched in 1998 at the Baikonur Cosmodrome in Kazakhstan and became the first part of the International Space Station (ISS). What was the gravitational potential energy (UG ) of the Zarya module when it was on the launching pad?

A robotic rover on Mars finds a spherical rock with a diameter of 10 centimeters [cm]. The rover picks up the rock and lifts it 25 centimeters [cm] straight up. The rock has a specific gravity of 4.65. The gravitational acceleration on Mars is 3.7 meters per second squared [m/s]. If the robot's lifting arm has an efficiency of 30% and required 13 seconds [s] to raise the rock 25 centimeters [cm], how much power in units of watts [W] did the arm use? Click the icon to view the conversion table. Click the icon to view the density of water. Click the icon to view the table of common derived units in the SI system. Click the icon to view SI prefixes table. ... .. The robot's arm used W. (Round your answer to two decimal places.)

You are out on a date, eating dinner in a restaurant that has several television screens. Most of the screens are showing sports events, but one near you and your date is showing a discussion of an upcoming voyage to Mars. (a) Your date says, “I wonder how long it takes to get to Mars?” Wanting to impress your date, you grab a napkin and draw as shownon it. Even more impressively, you tell your date that the minimum-energy transfer orbit from Earth to Mars is an elliptical trajectory with the departure planet corresponding to the perihelion of the ellipse and the arrival planet at the aphelion. You pull out your smartphone, activate the calculator feature, and perform a calculation on another napkin to answer the question above that your date asked about the transfer time interval to Mars on this particular trajectory. (b) What If? Your date is impressed, but then asks you to determine the transit time to an inner planet, like Venus.

A 164 kg mass is lifted 1.8 m. What is the potential energy of the mass (in J)? Your Answer:

A 164 kg mass is lifted 1.8 m. What is the potential energy of the mass (in J)? Your Answer:

what are two ways an object can gain more gravitational potential energy?

Large meteors sometimes strike the earth , converting most of their kinetic energy into thermal energy. what is the kinetic energy of a 10^9 kg meteor moving at 25.0 km/s?

An object that has a gravitational potential energy of 734 J is lifted 5 meters.  What is the object's mass? Question 9 options: 9.8 kg 735 kg 15 kg 3 kg

How many times could a 70kg person jump rope with the energy contained in one serving of gummy bears? There are 130 calories per serving of gummy bears. Assume the gummy bear energy is converted completely to potential energy and that each jump is 10.0cm high. Calculate the potential energy per jump using PE = mgh where m is the mass of the person in kilograms, g is the gravitational acceleration constant 9.8m/s^2, and h is the height of each jump in meters. Recall that 1 Joule = 1kgm^2/s^2.