Acceleration is best defined as the rate of change of blank of an object

Answers

Answer 1

Answer: Rate of change of velocity of an object.

Answer 2

Answer: Speed, or rate of velocity

Related Questions

Thermal energy is transferred as heat from a warmer object to a cooler object until Select one: a. all of the energy from the hot object is transferred to the cold object. b. the temperature is the same in both objects. c. all of the energy from the cold object is transferred to the hot object. d. the thermal energy is converted into another type of energy such as light.
How long would it take for a sound impulse to travel through a copper rod 2.0 km long?_____ s0.0570.571.7517.5
What metric unit is used to describe the mass of an object
John and Daniel are playing tug-of-war together. John is exerting 10 N of force. Daniel is exerting 12 N of force. What is their net force
Which trasformaron of energy takes place when a slingshot launches a stone ?

I need physics help!!

Answers

Answer: magnitude = 5 and angle = 160°

Explanation:

A vector has magnitude 5 and angle -20°

A vector can be written in terms of its components as :

$\vec{A}=A_x\hat{i}+A_y\hat j \n \Rightarrow \vec A = A cos\theta \hat i+A sin\theta \hat j$

using trigonometry identity:

sin θ = -sin ( 180 + θ )

cos θ = - cos (180 + θ)

Thus, we can write the same vector as:

$\vec A = -A cos(180+\theta) \hat i+(-A) sin(180+\theta) \hat j$

Magnitude $|A|=√((-A)^2+(-A)^2) = A = 5$

Thus, the magnitude would be A = 5 and angle = 180+θ= 180-20 = 160°

What characteristics of carbon makes it essential to living organisms

Answers

Carbon is important to living organisms and is considered the organic element because of its ability to form so many bonds. Since carbon has four valence electrons, it has four open bonding spots, allowing it to form a large array of different substances. Because of this, carbon can be found in tons of things that are essential to sustaining life.

Hope this helps!

What is the momentum of a 12,000 kg car moving at a speed of 40 m/s?

Answers

Momentum = (mass) x (speed)

Momentum = (12,000 kg) x (40 m/s)

Momentum = (12,000 x 40) kg-m/s

Momentum = 480,000 kg-m/s

How wide is the moon

Answers

The moon is very nearly a sphere (ball shape). We usually talk
about the "diameter" of a sphere, not its width.

The moon's diameter is about 2,159 miles or 3,475 kilometers.
That's about 27% (a little over a quarter) of the Earth's diameter.

14.6 million square miles (38 square kilometers

Summarize what you learned this week about the electromagnetic spectrumHINT: What is it? What does it organize? How do we use these EM waves in our lives?

Answers

Answer:

I only really know the "How do we use these EM waves in our lives?" part srry

Explanation:

EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.

Electromagnetic spectrum consists of
Radio waves
Microwaves
Infrared
Visible light
Ultraviolet
X-ray
Gamma ray

We use these everyday in our life however they also have dangers.

Radio waves - their long wavelength allows them to help with communication
Danger - exposure to a lot of radio waves can cause cancer or leukaemia

Microwaves - used for heating up food and transferring heat to the food.
Dangers - exposure can cause cancers and other diseases.

Infrared - can be used for remote controls and security cameras.
Danger - can cause damage to the cornea in your eye

Visible light - used for photography and optical fibres.
Danger - intense sources can cause permanent or temporary damage to the eyesight.

Ultraviolet - can be used to sterilise food and sterilise surgical equipment.
Danger - can cause skin damage and may lead to a cancer.

X-rays - used to see the internal structure of tissues and bones.
Dangers - can lead to mutations and May damage the cells

Gamma- can be used to sterilise food and surgical equipment and kill microorganisms and other bacteria.
Dangers - May reach your cells and cause cancer and cell mutations which could result in mutations.

What was the hiker's total displacement?A.24 km B.4 km north C.14 km northeast D.0 km

Answers

we can see it as two movements: one on the north-south axis and one on the west-east axis.

On the north-south Axis, the hiker went 8 km north and 4 km south, so in total the hiker went 4 km north (we can subtract one for the other and the direction remains that which was bigger)

On the west-easth Axis, the hiker went 6 km east and 6 km west, so in total the hiker didn't move on this axis! or, he/she moved but then "came back"

So in total, the hiker only moved4 km north - answer B.

Answer:

its b

Explanation:

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