What is the magnitude of 20 kg and 0.5m/s

Gina is driving her car to work, but she’s stopped at a red light. When the light turns green, she presses the gas pedal and acc

Vlad [161]

Since car is initially at rest so at that position the net force on car in vertical as well as horizontal both direction is zero

but after lights are green the car will speed up in horizontal direction

so now we can say that

It will accelerate in horizontal direction

So now as per Newton's formula we have

$F = ma$

so now the force in horizontal direction will become nonzero while in vertical direction car is still in equilibrium

So now we can say

$F_x = ma$

$F_y = 0$

so the correct answer will be

C. The net force on the car is greater than zero in the horizontal direction.

4 0

3 years ago

The formation of a standing wave requires _____.

erica [24]

the formation of a standing wave requires interferencethe incoming and reflected waves of the same frequency

4 0

3 years ago

Read 2 more answers

Good morning! someone please answer this, ill give you brainliest and your earning 50 points.

wariber [46]

One step of copper mining requires blasting ore to be able to blasted and extracted from mine.

This process causes harm to the Geosphere (Lithosphere)
In this step, they blast the mines inside the earth. Which causes destruction and harm to the geosphere.
We know that, land comes under Geosphere also known as Lithosphere.

Mercury is used to recover minute pieces of gold that is mixed in soil and sediment. Sometimes Mercury can be lost in this process resulting in widespread contamination of local rivers and lakes.

This causes harm to the Hydrosphere.
The portion of earth covered with water is known as hydrosphere.
Since, The Mercury is getting mixed with the water. It is polluting the water that is the hydrosphere.

Hundreds of tons of rock are unearthed, moved and crushed in mining operation significantly increasing the amount of dust and particulates in the air.

This causes harm to the Atmosphere.
The particles of dust get increased in air and eventually gets mixed and spread everywhere.
The air is getting polluted which means the atmosphere is getting harmed.

Strip mining (also known as mountaintop removal) involves scraping away earth and rocks to get to coal buried near the surface. This often results in the destruction of ecosystems.

This causes harm to the Biosphere.
The biosphere consists of plants and animals. And these plants and animals collectively form a habitat called ecosystem.
When a ecosystem is destroyed, the biosphere is harmed.

8 0

2 years ago

During meiosis maternal and paternal chromosomes that occur in a gamete line up and exchange segments in a process called crossi

sergiy2304 [10]

Explanation:

Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

4 0

2 years ago

Read 2 more answers

The net external force acting on an object is zero. Is it possible for the object to be traveling with a velocity that is not ze

Rzqust [24]

Answer:

Yes, this is according to the Newton's first law of motion.

Neither its direction nor its velocity changes during this course of motion.

Explanation:

Yes, it is very well in accordance with Newton's first law of motion for a body with no force acting on it and it travels with a non-zero velocity.

During such a condition the object will have a constant velocity in a certain direction throughout its motion. Neither its direction nor its velocity changes during this course of motion.

4 0

2 years ago