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2 years ago

1. When red light shines on a red rose, what color do you see? Do the leaves become

Physics

2 answers:

Lubov Fominskaja [6]2 years ago

7 0

This is hard sorry but I need to anwser

MAVERICK [17]2 years ago

7 0

Yes the red light makes it warmer, because of the types of heat waves that it is giving off.

the green light makes the rose look black-brown. it doesnt get warmer

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Pls do question 1 part d). tysm

Aneli [31]

Answer:

Explanation:

cuz its informing the length of 5 and weight on 20N

5 0

3 years ago

In an experiment, a variable, position-dependent force FC) is exerted on a block of mass 1.0 kg that is moving on a horizontal s

marshall27 [118]

Answer:

C) The function F(x) for 0 < x < 5, the block's initial velocity, and the value of Fr.

Explanation:

Yo want to prove the following equation:

$W_N=\Delta K\\\\$

That is, the net force exerted on an object is equal to the change in the kinetic energy of the object.

The previous equation is also equal to:

$F(x)x-F_f=\frac{1}{2}m(v_f^2-v_o^2)$ (1)

m: mass of the block

vf: final velocity

v_o: initial velocity

Ff: friction force

F(x): Force

x: distance

You know the values of vf, m and x.

In order to prove the equation (1) it is necessary that you have C The function F(x) for 0 < x < 5, the block's initial velocity, and the value of F. Thus you can calculate experimentally both sides of the equation.

8 0

3 years ago

friction force is the opposition to the motion of surfaces sliding across each other. what is one factor that affects the amount

ruslelena [56]

Answer

Nature of the surfaces.

Explanation

Friction is the the force that opposes motion between two surfaces that are in relative motion. If two objects are in contact, one of it or both must be in motion for friction to exist.

Friction is affected by a number of factors.

One is the weight of the object. The more the weight of the object the higher the friction between it and the surface.

The other factor is the nature of the surfaces. Rough surfaces contribute to high friction while smooth surfaces reduces the friction between surfaces.

3 0

3 years ago

When the resistance in a circuit remains constant, how are the voltage and current related?

solmaris [256]

V=IR, therefore when resistance is constant the voltage and current are directly proportional

6 0

3 years ago

Read 2 more answers

A biker can ride at 12 m/s on a level road when there is no wind and at 7.5 m/s on a level road when there is a head wind of 5 m

alexandr402 [8]

Answer:

The answer is " $1.94 \ m^2$ ".

Explanation:

Formula:

$F= \frac{1}{2} \times C_D \times density \times area \times velocity^2\\\\Power (P) = F \times velocity \\\\P = \frac{C_D}{2} \times density \times area \times velocity^3\\$

Given value:

$\ P = 10.25 \ W \\\\\ density = 1.2 \ kg/m^3 \\\\\ velocity= 2.5 \\\\$

$10.25 = \frac{C_D A}{2} \times 1.2 \times 2.5^3\\\\C_D A= \frac{10.25 \times 2 }{1.2 \times 2.5^3}\\\\C_D A = 1.94 m^2\\$

8 0

3 years ago