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3 years ago

A virtual image produced by a lens is always

Physics

1 answer:

Julli [10]3 years ago

6 0

The correct answer is:

"located in front of lens"

just took PF test and this was right answer

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What happens to the force of attraction between two planets when the masses of both are doubled?

daser333 [38]

So as two objects are separated from each other, the force of gravitational attraction between them also decrease. if the separation distance between 2 objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (2 raised to the second power).

Hope this helps :)

3 0

3 years ago

A large truck with a mass of 3200 kg is pulling a trailer with a mass of 2400 kg. Both are accelerating at a rate of 0.45 . Dete

Gwar [14]

Given:

Mass of truck, m1 = 3200 kg

Mass of trailer, m2 = 2400 kg

acceleration = 0.45 m/s²

Let's determine the following:

(a) The tension force between the truck and the trailer.

To find the tension between the truck and the trailer, apply the formula:

$F_{\text{net}}=a(m_1+m_2)$

Where:

Fnet is the tension between the truck and the trailer

a is the acceleration = 0.45 m/s²

m1 is the mass if the truck = 3200 kg

m2 is the mass of trailer = 2400 kg

Hence, we have:

$\begin{gathered} F_{net}=0.45(3200+2400) \\ \\ F_{\text{net}}=0.45(5600) \\ \\ F_{\text{net}}=2520\text{ N} \end{gathered}$

Therefore, the tension between the truck and the trailer is 2520N

(b) The force with which the truck is pulling.

The tension between the truck and the trailer is equivalent to the force on the trailer.

thus, we have:

$\begin{gathered} T=m_2a \\ \\ T=2400\times0.45 \\ \\ T=1080\text{ N} \end{gathered}$

Therefore, the force with which the truck is pulling is 1080N.

ANSWER:

(a) 2520N

(b) 1080 N

8 0

2 years ago

What happens to water when it changes to ice?

mamaluj [8]

When water changes to ice, its density decreases and its volume increases.

7 0

3 years ago

A person drops a 2.00 kg ball off a building. what is the force of weight on the ball?

Lostsunrise [7]

Explanation:

Given

mass (m) = 2 kg

acceleration due to gravity (g) = 10 m/s²

Force (F) = ?

We know

F = m * a

= 2 * 10

= 20 N

The force is 20 N.

Hope it will help :)❤

8 0

3 years ago

A squeeze bottle squeezes when pressed. It regains its shape when pressed. It regains its shape when pressure from your hand wit

Vaselesa [24]

Answer:

the bottle would stay in its squashed shape, and it will only regain its shape if u remove the cork

Explanation:

because theres not enough air inside to let the bottle to go back its normal form. Its like when u let the air out of a balloon, theres no air inside to let it stay in its 'big or expanded' form.

6 0

4 years ago