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Orlov [11]
3 years ago
12

Can anyone pls answer this plss plss I'm not sure which one it is​

Physics
1 answer:
lyudmila [28]3 years ago
5 0

Answer:

a) wet marble , dry marble, newspaper, and towel

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A 65 kg cart travels at a constant speed of 4.6 m/s. What is its kinetic energy?
Talja [164]

Answer:

Explanation:

mass (m) = 65 kg

velocity (v) = 4.6 m/s

Kinetic energy (KE)

= 1/2 * m * v²

= 1/2 * 65 * 4.6²

=  687.7 J

hope it helps :)

7 0
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A solenoid with a ferromagnetic core is called a circuit.
FrozenT [24]
It's False. Because it's electromagnet NOT circuit. I'd go with False if I were youSorry if you  get it wrong. Hope this helps.
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Metodo medible que no altera la composicion quimica de la materia o cuerpo?
SCORPION-xisa [38]

Answer:

Las propiedades físicas, como la dureza y el punto de ebullición, y los cambios físicos, como la fusión o la congelación, no implican un cambio en la composición de la materia.

Explanation:Creo que es correcta

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3 years ago
If force 1 has a magnitude of 5 N (forward) and force 2 has a magnitude of 30 N (forward), what is the net force acting on the o
Phoenix [80]
D I am pretty sure thanks
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3 years ago
Galileo Galilei was the first scientist to perform experiments in order to test his ideas. He was also the first astronomer to s
arsen [322]

Explanation:

Geocentric model said that the Earth is at the center of the universe and everything revolves around it. It was considered to be stationary. Galileo proved this model incorrect with the help of his astronomical observations. Some of the key observation that he used to support the heliocentric model were:

1. He proposed the theory that the tides on the Earth occur because of its motion.

2. He observed the phases of the Venus which meant that the Venus revolved around the Sun and not the Earth.

3. He observed other planets and thus noted that they also move around the Sun and not Earth.

4. He discovered the Moons of other planets.

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3 years ago
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