What is the force of gravity between you (still m = 75kg) and the Earth? HINT: you don’t need the mass of the Earth for this, just Newton’s second law!
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What is the force of gravity between you (still m = 75kg) and the Earth? HINT: you don’t need the mass of the Earth for this, just Newton’s second law!
You sit on Earth taking a physics test.a. What is the force of gravity from the planet Jupiter (mass = 1.9 * 1027kg) pulling on you (mass = 75kg) right now (distance = 5.9 * 1011m)? b. What is the force of gravity between you (still m = 75kg) and the Earth? HINT: you don’t need the mass of the Earth for this, just Newton’s second law! c. The Mass of Jupiter is over 300 times the mass of Earth. Why is...
Given Newton’s Law for the gravitational force: F = G Mm R2 and Newton’s Second Law Fnet = ma, find an expression for the Moon’s orbital speed. Hint - You will also need to use the definition of centripetal acceleration.
Newton’s second law relates an object’s acceleration to its mass and the net force acting on it. Does Newton’s second law apply to a situation in which there is no net force? Select the best explanation. A. Yes. The law applies and it tells us that the object has a nonzero acceleration. B. No. The law applies only to situations in which a net force acts. C. No. The law does not apply because a zero net force would produce...
What is the force of gravity on you (m = 70kg) when you are: a) On the surface of the Earth? (1 mark) b) On the International Space Station, which is 395km above the Earth's surface? (2 marks) Some constants you may need to know: - mass of the Earth: 5.98x10^24kg - radius of the Earth: 6.38x10^6m
rite the formula for Newton’s universal law of gravity, explaining all terms used. [2 marks] (b) Explain what is meant by centripetal force. [2 marks] (c) Derive a formula for the relationship between the period of a satellite and the radius of its orbit. [4 marks] (d) The moon Triton orbits the planet Neptune every 5.88 days with an orbital radius of 3.55×105 km. Although Neptune is a gas giant we can still identify a “surface” at a distance of...
Which of the following statements are true? Because the Earth has mass it produces gravity. There is no gravity at the space station I need to do work to move a satellite from lower to higher orbit. Because the force of gravity is a conservative force and because it acts as a centripetal force it does no work, the mechanical energy of Earth is conserved and it will not crush into the Sun. Since Moon has no air, there is...
We know that the Earth moves about the Sun due to the gravity force exerted by the Sun, that is, the Earth is a “satellite” to the Sun, just like the moon to the Earth. Assume the Earth follows uniform circle motion about the Sun, and ignore gravity force due to objects other than the Sun. Estimate the orbital speed of the Earth = _______ m/s? The Earth has mass =5.98 x 1024 kg and radius 6.4 x 106 m....
When you drop a 0.35 kg apple, Earth exerts a force on it that accelerates it at 9.8 m/s^2 toward the earths surface. According to Newton’s third law, the apple must exert an equal but opposite force on Earth. If the mass of the earth is 5.98x10^24 kg, what is the magnitude of the earth’s acceleration toward the apple? Answer in units of m/s^2.
Q1) Answer all Multiple Choice questions.i) Newton’s 1st law is:A. PHYSICALLY INDEPENDENT of the other two laws
of motion and CANNOT be dispensed with as an axiom
of Newtonian physics.B. PHYSICALLY INDEPENDENT of the other two laws
of motion, but nonetheless it CAN be dispensed
with as an axiom of Newtonian physics.C. Actually a SPECIAL CASE of the 2ND LAW. The
case when the net force is zero. Therefore, logically we need only
two laws of motion. Perhaps for clarity...
2. Unlike on Earth-where electromagnetic forces dominate our lives--in space gravity is the dominant force. a. Compare the gravitational force between two electrons to their electric attraction. (Hint: Google Coulomb's Law, charge of an electron, and mass of an electron, and plug in the numbers.) The difference is massive-this is a fundamental truth about our universe. Calculate the mass of the electron necessary to make the gravitational attraction and electrical repulsion of two electrons equal. b. The only reason gravity...