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# Solar System

### Motion

(See attached file for full problem description) Please do all problems step by step showing all math used and the equations. ANswers are given, but need to see how got answer. Skip the questions that given a sentence answer. Just do the math questions. Adult here doing his best to get this material. Thanks! 25. At ti

### Net force exerted on the Earth by the Moon and Sun

When the Earth, Moon, and Sun for a right triangle with the Earth located at the right angle, the moon is approaching the third quarter. (Earth is viewed here from above its north pole). Find the magnitude and direction of the net force exerted on the Earth.

### Gravitational forces: Find the magnitude of force that each part exerts on the other out in space, far from any other objects?

On earth, two parts of a space probe weigh 11000 N and 3400 N. These parts are separated by a center to center distance of 12m and may be treated as uniform spherical objects. How can you find the magnitude of the gravitational force that each part exerts on the other out in space, far from any other objects?

### Spherical capacitor: Equivalent parallel plate capacitor

Derive an expression for capacitance of spherical capacitor (inner and outer radii are R1 and R2 respectively) and show that in case of small distance between spheres (R1 ≈ R2) capacitance can be calculated using the expression for parallel plate capacitor.

### Physics: Protons, Speed, Clocks

1. Suppose we accelerate a proton so that its kinetic energy is equal to its mass energy. What is the speed of such a proton? NOTE: you do not have to know the mass of the proton to do this problem: it would be the same for any particle. 2. Spaceman Spiff passes the earth on his way to Mars. His thruster control is stuck and

### Newton's Laws and Circular Motion

A physics major is working to pay his college tuition by performing in a traveling carnival. He rides a motorcycle inside a hollow transparent plastic sphere. After gaining sufficient speed, he travels in a vertical circle with a radius of 13.0 m. The physics major has a mass of 70.0 kg, and his motorcycle has a mass of 40.0 kg.

### Order-of-magnitude calculations

1) If the entire population of the United States forms a human chain by holding hands, how many times can such a chain be wrapped around the earth's equator? Round your answer to the nearest integer. 2) How many times does your heart beat during your lifetime? Round the answer to the nearest power of 10 and then express you

### Computing distance

Background Information: A simple pendulum, such as a rock hanging from a piece of string or the inside of a grandfather clock, consists of a mass (the rock) and a support (the piece of string). When the mass is moved a small distance away from its equilibrium point (the bottom of the arc), the mass will swing back and forth

### Harmonic Motion and Time

A certain pendulum clock that works perfectly on Earth is taken to the moon, where g= 1.63m/s2. The acceleration of gravity is 9.81 m/s2. The clock is started at 12:00 am and runs for 13 hours. What will be the reading for the hours in units of h, what will the reading be in minutes and what will be the reading be in secs?

### Some Momentum Problems

1) A 2698 kg pick-up truck driven by Ford Tuff has a velocity of 42.4 m/s east. What is the magnitude of the momentum of the truck in kg-m/s? 2) A 2198 kg police pursued van is driven by Chase Mee. The van exhibits a momentum of 3698 kg-m/s. What is the velocity of the van in m/s as it veers rightward into a guardrail? 3) Rock

### Car acceleration and net force

1. Suppose a man pushes a small car on level ground. He pushes with a force of 400 N, and the 800kg car accelerates at a rate of 0.30 m/s2. (a) What is the net force on the car? (b) Draw a force diagram for the car, showing the force of pushing, the force of friction, and weight, and the upward (normal) force of the ground.

### Orbital speed of a satellite

Find the orbital speed of a satellite in a circular orbit 1870 km above the surface of the Earth. 1870km = 1.87e6 m I tried using the V^2=GMe/r and came up with 14.6 km/s which is wrong. I tried finding the velocity of earth 7.91 km/s and subtracting from the 14.6 km/s and still the answer is wrong. Am I using th

### Physics Questions

1. A bathroom spring scale obeys Hooke's law and is depressed 0.750 cm by its maximum load of 120 kg. What is the springs effective force constant? 2. Fish are hung on a spring scale to determine the mass (most fishermen feel no obligation to report the mass truthfully). (a) What is the force constant of the spring in such a

### Astronomy: Sun formation, planet detection, galaxy history

N. Evidence is strong that the formation of the Sun (and its family of planets) happened by the same processes as the formation of stars. Explain. o. How are planets detected around other stars? p. Did the Sun and solar system form in the first half or last half of our galaxy's history? Explain.

### Definition of a meter

The METER is currently defined a. by a standard metal bar kept in Paris, France. b. as 10 ^-7 of the distance from Equator to Pole. c. by the distance light will travel in a certain time. d. by the President's foot. e. by a platinum bar kept in the National

### Mass of Planets in Solar System, Gravitational Acceleration and Pendulum Period

Using the internet, I need to find the mass and radius of three of the nine planets in our solar system. Be sure that the masses are expressed in kilograms and the radii are expressed in meters. Using the data, calculate the gravitational acceleration on each of the three planets you selected. Note: With the masses measured

### What is the mass of the largest cargo the balloon could carry near the earth's surface to get off the ground?

A spherical balloon of radius 10.0 m has a mass of 600 kg when empty. If the balloon is filled with 1.0 atmospheres of helium gas, what is the mass of the largest cargo it could carry near the earth's surface to get off the ground: (a) Make a labeled diagram of the forces. (b) Use Archimedes principle to determine the buoyant

### Helium Filled Balloon

A helium filled balloon is tied to a 2.0 meter long, 0.050-kg string. The balloon is spherical with a radius of 0.40 m. When released, it lifts a length (h) of the string and then remains in equilibrium as in the figure. Now determine the value of (h). When deflated, the balloon has a mass of 0.25 kg. (Note: Only that part of th

### Mass of Solar System, Quadratic Formula and Real-Life Complex Number Applications

What is the total mass in kilograms of our solar system? And what is the equation for the speed of light? When solving a quadratic equation using the quadratic formula, is it possible for the b to the second power minus 4ac term inside the square root to be negative, thus forcing us to take the square root of a negative numb

### Solar Power and the Temperature of Earth

Question: How can I calculate the solar power intercepted by the earth and the average temperature of the earth to radiate this power? e=1

### Time for light to travel from earth to the moon

The speed of light in vacuum is approximately 3 * 10^8 m/s. Calculate how long light takes to travel from the Earth to the Moon (distance 3.8 * 10^5km) and how long light takes to travel from the the sun to the Earth (distance 1.5 * 10^8km)?

### Algebra Basics which involves Physics.

I really need help on this one. Find the mass and radius of three of the nine planets in our solar system. I chose pluto, venus, mars. My masses must be expressed in kilograms and the radii expressed in meters. I am trying to calculate the gravitational acceleration on each of the three planets I selected. The masses must be m

### Average Density of Earth to Sun

Without using the value of G or the actual value of any masses, estimate the ratio of the mean density of the Earth to that of the Sun. The only facts you may use are those that a nonscientist might be aware of, the fact that the Moon's radius is three and one half times smaller than Earth's radius and the scaling implicit to Ke

### Potential and Kinetic Energy

1. How much potential energy does an object have that has a mss of 10 kg and is 4 meters off the ground on earth? 2. How much potential energy does an object have that has a mass of 10 kg and is 4 meters off the ground on the moon where gravity is 1.6(m/s^2)? 3. If the object falls half way to the ground so that its height is

### Arc length separating two satellites

Two geostationary communication satellites are placed in orbits whose radii are 4.23 x 10^7 m. The orbit is in the plane of the equator and the satellites have an angular separation of 2.00 degrees. Find the arc length that separates the satellites.

### The Law of Universal Gravitation

You drive an automobile of mass 2.10*10(3) kg from sea level to the top of a mountain 2.05km high? What is the automobiles' change in weight?

### Escape Speed using a Square Root

Show that escape speed is the square root of 2 times as large as the orbital speed of an object in orbit just above the earth's surface.

### International Space Station (ISS) plan to snag a cable for removal

The International Space Station is in a nearly circular orbit at an altitude of 398.00 km above the surface of the earth. A maintenance crew is about to arrive on the space shuttle that is also in a circular in the same orbital plane as the ISS, but with an altitude of 398.10km. The crew has come to remove a faulty 125 m c

### Gravitation: Spacecraft launch speed to escape from the solar system altogether

A spacecraft is to be launched from the surface of the earth so that it will escape from the SOLAR SYSTEM altogether. a) Find the speed relative to the center of the earth with which the spacecraft must be launched. Take into consideration the gravitational effects of both the earth and the sun, and include the effect of the

### Find the speed of a spacecraft as a function of the distance to Earth

Very far from earth (at R=infinity), a spacecraft has run out of fuel and its kinetic energy is zero. If only the gravitational force of the earth were to act on it (i.e., neglect the forces from the sun and other solar system objects), the spacecraft would eventually crash into the earth. The mass of the earth is M_e and its ra