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icang [17]
3 years ago
11

Exit

Physics
1 answer:
Mila [183]3 years ago
3 0
The gravitation field strength of Planet X is 10 times that of Earth's, as the object weight has increased 10 times. This is only possible if the planet is more massive or more dense (smaller diameter).

Therefore, the answer is C.
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A diamond with a mass of 45 g hangs motionless from a chain. what is the upward force of the chain on the diamond?
BARSIC [14]
The upward force of the chain on the diamond would be the tension in the chain, and this tension would have to support the weight of the 45g that hangs from the chain.

mass = 45 g = 45/1000 kg = 0.045kg

Weight = mg = 0.045 * 10 ≈ 0.45N,            g ≈ 10 m/s²

So the upward force is ≈ 0.45N. 
7 0
4 years ago
Motion and force of physics. Plz answer.​
Whitepunk [10]

Explanation:

a. " for every action there is an equal and opposite reaction".

b. The electric fan does not stop moving just after the switch turns off because of rational inertia force.

c. The force applied to first vehicle is 120N.

d. In my view it doesn't support the law of conservation of momentum. Momentum of 1 and 2 object before the collision is equal to the total momentum of two object after collision.

7 0
3 years ago
the mass of a proton is 1.6726 * 10^-24 and the mass of a electron is 9.1093 * 10^-28. What is the difference between the mass o
crimeas [40]
Proton : 0.00000000000000000000000161726

Electron : 0.00000000000000000000000000091093

Take them away =
1.616349e−24
(that's what it gave me on the calculator when I did proton - electron)
3 0
3 years ago
Read 2 more answers
How long will it take you to pass a truck at 60 mph with oncoming traffic?
DedPeter [7]
<span>This is impossible to calculate without knowing the speed of each vehicle. </span>
6 0
3 years ago
Read 2 more answers
A current density of 7.3 × 10−13 A/m2 exists in the atmosphere where the electric field (due to charged thunderclouds in the vic
11111nata11111 [884]

Answer:

σ = 1.52 10⁻¹²   1 /Ω m

Explanation:

The current density is linear in the atmosphere, so it complies with Ohm's law

         J = σ E

Where J is the current density, sigma is the electrical inductance and E is the electric field

         σ = J / E

         σ = 7.3 10⁻¹³ / 48

         σ = 1.52 10⁻¹² A / V 1 / m

         σ = 1.52 10⁻¹²   1 /Ω m

6 0
3 years ago
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