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2 years ago

Pls answer asap!! I need help on this question!

Physics

2 answers:

evablogger [386]2 years ago

8 0

Hubble space telescope, Hubble deep field guide, moon, mercury, Saturn, sun, galaxy messier 101

andrey2020 [161]2 years ago

3 0

Answer:

1-Hubble Deep Field Galaxy

2-Galaxy Messier 101

3-Sun

4-Saturn

5-Mercury

6-Moon

7-Hubble Space Telescope

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Select the sentence that best describes why copper and some other metals are good conductors.

Crank

B) Copper atoms have a loosely held free electron in their outer shell that is able to move freely to other atoms.

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3 years ago

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Which of Newton's laws of motion describes the motion of an object that has a net force of ON?

algol [13]

Newton's first and second laws of motion both do, but I think the one you're looking for is: The First Law of Motion. That description is a little more direct.

It says that if an object is not acted on by a net external force, then it continues in "constant, uniform motion".

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2 years ago

An object is stopped at point ‘a’, and travels to point ‘c’ in 8s. What was its acceleration?

lutik1710 [3]

In SI units, its acceleration is (the distance from A to C) / 32 m/s^2 .

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3 years ago

3. A cart with mass of 30 kg is traveling with a velocity of 4.0 m/s. The

MaRussiya [10]

Answer:

39 m/s

Explanation:

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2 years ago

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how fast will and in what direction will a 20kg object accelerate if one force pushes at a 30 degree angle and another pushes at

DiKsa [7]

Answer:

$|a|=2.83\ m/s^2$

$\theta=75^o$

Explanation:

Net Force And Acceleration

The Newton's second law relates the net force applied on an object of mass m and the acceleration it aquires by

$\vec F_n=m\vec a$

The net force is the vector sum of all forces. In this problem, we are not given the magnitude of each force, only their angles. For the sake of solving the problem and giving a good guide on how to proceed with similar problems, we'll assume both forces have equal magnitudes of F=40 N

The components of the first force are

$\vec F_1=$