All categories

3 years ago

Use newton's laws to find an expression for the net external force acting on the car. ignore air resistance.

1 answer:

4 0

Hi, thank you for posting your question here at Brainly.

Newton's second law of motion can be expressed as Fnet = ma. The next external for acting on, say for example, a moving car are the following:

*weight due to gravity (force down)
*friction force between he road and the car's tires (force opposite the car's direction)

You might be interested in

Find an equation of the line which is parallel to 2x-3y=6 and passes through the point (6,9)

tatuchka [14]

Step 2: Use the slope to find the y-intercept. Line is parallel so use m = 2/5. 6. Findthe equation of a line passing through the point (8, –9) perpendicular to the line 3x + 8y = 4.

8 0

3 years ago

Rock candy is made from crystallized sugar. What is crystallization?

ankoles [38]

Answer: Rock candy is candy made of large sugar crystals. To make rock candy, a supersaturated solution of sugar in water is created and left undisturbed for a few days. The driving force behind crystallization is supersaturation.

7 0

2 years ago

Read 2 more answers

Ron fills a beaker with glycerin (n = 1.473) to a depth of 5.0 cm. if he looks straight down through the glycerin surface, he wi

Tju [1.3M]

By law of refraction we know that image position and object positions are related to each other by following relation

$\frac{\mu_1}{h_o} = \frac{\mu_2}{h_i}$

here we know that

$\mu_1 = 1.473$

$h_o = 5 cm$

$\mu_2 = 1$

now by above formula

$\frac{1.473}{5} = \frac{1}{h_i}$

$h_i = 3.39 cm$

so apparent depth of the bottom is seen by the observer as h = 3.39 cm

7 0

3 years ago

At what height is an object that weighs 490 newtons if its gravitational potential energy is 4900 J?

Sergio [31]

Answer:

The height at which the object is moved is 10 meters.

Explanation:

Given that,

Force acting on the object, W = F = 490 N

The gravitational potential energy, P = 4900 J

We need to find the height at which the object is moved. We know that the gravitational potential energy is possessed due to its position. It is given by :

$P=mgh\\\\h=\dfrac{P}{mg}\\\\h=\dfrac{4900\ J}{490\ N}\\\\h=10\ m$

So, the height at which the object is moved is 10 meters. Hence, this is the required solution.

5 0

3 years ago

Which part(s) of a hair can be analyzed for nuclear DNA?

kiruha [24]

hair follicle
should be your answer

3 0

3 years ago