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2 years ago

What are the two thing change when an object is in motion

Physics

1 answer:

yanalaym [24]2 years ago

7 0

The two things that change are position and speed.

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A remote-controlled car runs on a 9V battery. If a 1.5A current is running through the circuit, what resistance is the car prov

Aleonysh [2.5K]

Ohm's law:

V = I * R, so R = V/I = 9/1.5 = 6 Ohm

4 0

3 years ago

lys-0071 [83]

Answer:

The object will have an upward acceleration

Explanation:

Let's consider the forces applied on the box. We have only two forces:

- The applied force of push, $F_p$ , downward

- The force of gravity, $W$ , (also known as weight of the object), downward

Therefore, the net force on the box is:

$F_{net}=F_p -W$

Here, we know that force applied is equal or greater than the weight, so

$F_p \geq W$

And therefore the net force is greater than zero:

$F_{net}\geq 0$ (1)

According to Newton's second law of motion, the net force on the box is equal to the product between its mass and its acceleration:

$F_{net}=ma$

where

m is the mass of the box

a is its acceleration

Given (1), this means that

$a\geq 0$

Therefore, the box will have an upward acceleration.

In this case force example we have:

$F_p = 100 N\\W = 40 N$

So the mass of the box is

$m=\frac{W}{g}=\frac{40}{10}=4 kg$

So the net force is

$F_{net}=F_p-W=100-40=60 N$

And the acceleration is

$a=\frac{F_{net}}{m}=\frac{60}{4}=15 m/s^2$

4 0

3 years ago

Which best describes the two main functions of transistors in circuits? resisting and amplifying measuring and switching resisti

Marizza181 [45]

The two main function of a transistor is to amplify or switch electronic signals. The switch is two options: on / off. The amplification function is a change in voltage.

8 0

2 years ago

ANOTHER PHYSICS QUESTION PLEASE HELP!

Sergio039 [100]

Answer

= 60

Hope it helps:)

5 0

3 years ago

When you step inside a warm ski lodge on a cold day, you find your glasses fog. why does this occur?

marin [14]

Answer: Condensation of moisture in the air onto the glasses.

Explanation:
When you come from a cold environment into a warm ski lodge, the glasses are at a much lower temperature than that of the lodge.
Because the air in the room contains moisture (water vapor), it condenses on a surface whose temperature is lower than the dew point of the room.

5 0

3 years ago