The gravitational strength on Earth is less than the gravitational strength on Jupiter. What will happen to a satellite when it travels from Earth to Jupiter? a Its mass will increase. b Its mass will decrease. c Its weight will increase. d Its weight will decrease.
Answers
Answer:
weight will decrease
Explanation:
this is because mad stays the same no matter what so it was between this and weight increases
Answer:
Its weight will decrease.
Explanation:
just because
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m_earth=5.97×10^24 kg
G=6.674×10^−11 Nm^2/kg^2
Answers
Answer:
The weight of the astronaut in Earth's orbit 400 km above the Earth's surface is 664.115 N
Explanation:
The given parameters are;
The weight of the astronaut on the ground = 750 N
The height of the orbit above the Earths surface = 400 km
The radius of the Earth = 6.38 × 10⁶ m
The mass of the Earth = 5.97 × 10²⁴ kg
The universal gravitational constant G = 6.674 × 10⁻¹¹ Nm²/kg²
From Newton's law of universal gravitation, we have;
= ((6.38 × 10⁶)² × 750)/((6.674 × 10⁻¹¹) × (5.97 × 10²⁴)) ≈ 76.62 kg
The mass of the astronaut ≈ 76.62 kg
For the weight of the astronaut in Earth orbit 400 km (400 × 10³ m) above the Earth's surface, we have;
The weight of the astronaut in Earth's orbit 400 km above the Earth's surface = 664.115 N.
Answers
The answer;
In a conductor, the electric current can flow freely; in an insulator, it cannot flow freely.
Electrical conductance is the measure of the ease to pass an electric current through a material. Conductors usually have free electron in their bonds that enable them to carry electric current end to end. The higher the free electrons the higher the conddictivity. Insulators on the other and have no free electrons with this regard. Having free electrons in the structure is mainly determined by the electron configuration of the atoms of the element.
The correct statement is "In a conductor, electric current can flow freely; in an insulator, it cannot flow freely." The correct option is C.
A conductor is a material that allows the flow of electric current due to the presence of free electrons that can move easily. An insulator, on the other hand, is a material that restricts the flow of electric current because its electrons are tightly bound and cannot move freely.
A. Conductors have magnetic fields; insulators do not have magnetic fields.
This statement is not true. Both conductors and insulators can have magnetic fields, depending on the circumstances. The presence or absence of magnetic fields is not a defining characteristic that distinguishes conductors from insulators.
B. Conductors do not have magnetic fields; insulators do have magnetic fields.
This statement is also not true, for the same reasons mentioned above. Both conductors and insulators can have magnetic fields.
D. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.
This statement is the opposite of the correct option. In a conductor, electric current can flow freely because conductors have a large number of free electrons that are loosely bound to their atoms and are able to move easily in response to an electric field. In contrast, in an insulator, electric current cannot flow freely because insulators have tightly bound electrons that are not free to move, thus hindering the flow of electric current.
Therefore, option C is the correct one as it accurately describes the difference between conductors and insulators based on their ability to allow the flow of electric current.
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Answers
Photons:
According to quantum mechanics light is not a wave but it posses particle nature and light travel in the form of packets of energy and each packet of energy is known as photon or quanta. These photons can travel in all direction from a source like bulb.
The shape of a bulb is nearly spherical and light or photons emitted in all the direction.
B. 75 m/s
C. 1700 m/s
D. 2400 m/s
Answers
Spacecraft will be moving in 1700 m/s.
Option C
Explanation:
The diameter of the moon is 3500 km and the free fall acceleration at the surface is given as
The radius will be half of the diameter of the moon that can be written as:
By the application of the equation for orbit speed, we get
Final answer:
The spacecraft is moving at approximately 1700 m/s.
Explanation:
The speed of the spacecraft can be calculated using the formula for the orbital speed of an object:
V = sqrt((G * M) / r)
Where V is the velocity, G is the gravitational constant (approximately 6.67 x 10^-11 N m²/kg²), M is the mass of the moon (approximately 7.35 x 10^22 kg), and r is the radius of the moon plus the altitude of the spacecraft.
Plugging in the known values, we have:
V = sqrt((6.67 x 10^-11 N m²/kg²) * (7.35 x 10^22 kg) / (3.5 x 10^6 m + 200 m))
Calculating the square root of this expression gives us approximately 1700 m/s.
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Answers
Answer:
Pascal's law or the Principle of transmission of fluid-pressure states that "pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same."
Explanation:
Answers
Answer:
c
Explanation: