i’m like kinda bad at physics so ya please help

Im Like Kinda Bad At Physics So Ya Please Help

Answers

Answer 1

Answer:

99 joules.

Explanation:

Let m denotes mass of the object and v denotes velocity.

If mass has units of kilograms and the velocity has units of meters per second then the kinetic energy has units of joules.

Kinetic energy is an energy possessed by a body in motion.

Mass (m) = 99 kg

Velocity (v) = 2 m/s

To find kinetic energy, use the following formula:

Kinetic energy = [tex]\frac{1}{2}mv^2=\frac{1}{2}(99)(2)=99[/tex] joules


Related Questions

PLEASEEE HURRY!!
Can you tell me How the sun is responsible for all of the energy here on Earth?

Answers

Answer:

Explanation:

All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.

A 2 kg ball is thrown down with 50J of energy from a height of 10m, what is its velocity before it strikes the ground (neglect air resistance)

Answers

Answer:

Explanation:

Given the following data;

Mass = 2kg

Energy = 50J

Height = 10m

To find the speed

Kinetic energy can be defined as the energy possessed by a body due to its motion.

K.E = ½mv²

Substituting into the equation, we have;

50 = ½*2*v²

V² = 50

Taking the square root of both sides, we have;

V = 7.07m/s

You have a working electrical parallel circuit with three light bulbs, then 1 bulb burns
out.
Describe how electric current flows through the parallel circuit after 1 of the 3 bulbs
burns out?

Answers

Answer:

but the answer should be no as if 3 bulbs are connected together if one burns out the whole circuit will stop .hope you understood

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You have two lens A and B of focal length +50cm and -50cm respectively. The nature and power of the lenses respectively isa. Concave, -2 D ; Convex, +2 D b. Convex, +2 D; Concave, - 2 D

Answers

Answer:

Concave, +2D

Convex -2D

Explanation:

Power of a lens is the reciprocal of its focal length.

For lens of +50cm = 0.5m

Power of the lens = 1/0.5

Power of the lens = +2Dioptres

Since the focal length is positive, the lens is concave

For the lens of -50cm = -0.5m

Power = 1/-0.5

Power = -2D dioptres

Since the focal length is negative, the lens is convex

The Purpose Of Stretching Is :
A. To increase your flexibility
B.To increase your range of motion during workout
C.To increase blood flow to the muscles
D. All of the above

Answers

Answer:

all of the above are correct

Explanation:

hope it helps you

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All of the above is correct

PLS ANSWER FAST TIMED TEST WILL GIVE BRAINLY!!!!!!!!!


True or False?
It is easier to carry an empty backpack than a backpack full of books. This is an example of Newton’s 2nd law.

Answers

the answer would be true

Answer:

The answer iis true

Explanation:

It is much easier to carry your backpack when it is empty rather than when it's full of textbooks (or soaked from the rain).

what makes magnets work

Answers

A magnet is any material or object that produces a magnetic field. This magnetic field is responsible for the property of a magnet: a force that pulls on other ferromagnetic materials and attracts or repels other magnets.

What is the net force in this image?


a
8000 N right
b
5000 N right
c
4000 N right
d
4000 N left
e
5000 N left
f
8000 N left

Answers

Answer:

4000N left

Explanation:

6000N-1000N-1000N

6000N-2000N

8000N

How are humidity and precipitation related?
A. When humidity is low, the chance of precipitation is high.
b.When humidity is high, the chance of precipitation is high.
c.When humidity is high, the chance of precipitation is low.
d.Changes in humidity do not cause precipitation.

Answers

Answer:

Relative humidity depends on the amount moisture actually in the air at some temperature to the amount of moisture that the air can hold.

For instance, at 25 deg C the air has a saturation pressure of 23.76 mm of Hg.

That means that if at that temperature the pressure of the water vapor in the air reaches 23.76 mm Hg then the air is 100% saturated.

I believe the standard air pressure at 25 deg C is 760 mm Hg.

Now if the pressure of the water vapor in the air is 1/2 * 23.76 = 11.88 mm then the air is 50% saturated and the relative hunidity is 50 %.

At 100% relative humidity rain occurs (the air can't hold any more water).

When humidity is high, the chance of precipitation is high. The correct answer is b. When humidity is high, the chance of precipitation is high.

The amount of moisture or water vapor in the air is referred to as humidity. Relative humidity is a common way to measure it since it shows how much moisture the air is holding relative to how much it could contain at a particular temperature.

Any type of water that falls from the atmosphere and makes it to the surface of the Earth is referred to as precipitation. Examples include rain, snow, sleet, and hail.

When humidity levels are high, there is a lot of moisture in the air, which increases the possibility that saturation will occur. Excess water vapor condenses into visible water droplets or ice crystals as the air gets saturated, creating clouds. Condensed moisture in the clouds eventually gains enough weight to return to Earth as precipitation.

Therefore, when humidity is high, the chance of precipitation is high. The correct answer is:

b. When humidity is high, the chance of precipitation is high.

To know more about humidity, click here:

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Which of the following is a compound that would
be the most soluble in water? (DOK 2)
O A nitrogen triargonide
O B. carbon tetrachloride
O C. lithium fluoride
O D. magnesium disulfide

Answers

Lithium fluoride will be most soluble in water because it is most strongly ionic.

What is solubility?

Solubility is the amount of a substance that dissolves in a given volume of solvent at a particular temperature.

Solubility is affected by:

nature of substance: ionic substances are more soluble nature of solvent: polar solvents dissolves polar distance while non-polar solvents dissolve non-polar substances.temperature: solutesdissolve more at higher temperature

Water is a polar molecule.

Lithium fluoride will be most soluble in water because it is most strongly ionic.

Learn more about solubility at: https://brainly.com/question/23946616


Unlike Electromagnetic waves, Mechanical waves need a to
transfer energy

Answers

yes they transfer waves in order to get energy of mechanical

Discuss how the motion of the stunt cyclist relates to the forces acting on the stunt cyclist during the collision

Answers

Answer:

hello your question is incomplete hence I will give you a general answer on how a stunt cyclist performs his stunts successfully

answer ;

The stunt cyclist trying to perform some sort of stunt with the bicycle will be faced with some forces like the static fiction between the tires of the bicycle and wall and also a centripetal force.

In order to overcome the centripetal force the minimal grip of the bicycle must be equal to the weight and the speed at which the cyclist must go can be represented as :

[tex]V_{min} = \sqrt{\frac{r.g}{u} }[/tex]

Explanation:

The stunt cyclist trying to perform some sort of stunt with the bicycle will be faced with some forces like the static fiction between the tires of the bicycle and wall and also a centripetal force.

In order to overcome the centripetal force the minimal grip of the bicycle must be equal to the weight and the speed at which the cyclist must go can be represented as :

[tex]V_{min} = \sqrt{\frac{r.g}{u} }[/tex]

where ; r = radius of the tunnel where the stunt is to be performed

            g = gravitational speed

            u = coefficient of static friction

A 12 kg object speeds up from an initial velocity of 10 m/s north to a final velocity of 15 m/s north. Calculate the change in momentum

Answers

Answer:

60m/s

Explanation:

momentum = Mass × Velocity

Initial Momentum = 12 × 10

= 120

Final Momentum = 12×15

=180

Change in Momentum = 180 - 120

= 60m/s

Answer:

60

Explanation:

formula for change in momentum = F =∆p/∆t

F∆t = ∆p

∆p = m(v - Vo)

∆p = 12(15-10)

=12(5)= 60

The equation below represents the process that you observed. Balance the equation. What type of reaction?
6CO2 + 6H2O + light energy = 0C6H12O6 + 6O2 _______________________

Answers

That looks like photosynthesis to me and I think that should be an endothermic reaction because it requires energy.

An 6 kg object accelerating from 17 m/s to 10 m/s. What is the change in momentum of the object?

Answers

Answer:

- 42

Explanation:

m = 6kg

vi = 17 m/s

vf = 10 m/s

delta mv = ?

Formula

delta mv = m*(vf) - m(vi)

delta mv = 6(10 - 17)

delta mv = 6(-7)

delta mv = - 42 kg m/s

Explain why the radiative zone of the sun is hotter than the corona of the sun

Answers

Answer: Because The spectra provided evidence to explain why the sun's atmosphere is so much hotter than its surface. ... Clear evidence now suggests that the heating mechanism depends on regular, but intermittent explosive bursts of heat, rather than on continuous gradual heating.

Explanation:

A 6kg bowling ball is rolled down the bowling lane with a force of 42N, what is the acceleration of the ball?

Answers

Answer:

7 m/s²

Explanation:

F= ma

A= F/m = 42/6 = 7 m/s²

what is the resistance of an object that produces a current of a 6 A and has a voltage of 30 ​

Answers

Answer:

this is the answer the required questions

hope you like this

Use the image to answer the question. Which process enables the boy to see
over the wall?
A.diffraction
B.interference
C.reflection
D.refraction

Answers

HELLO

İ THİNK D

WHY D?

BCUESE SEN COK MALSİN ZAAA DAHA TÜRCE BİLMİYON MK

manganese dioxide is used in the dry cell as​

Answers

Answer:

Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD is commonly used in zinc manganese dioxide rechargeable alkaline (Zn RAM) cells also. For these applications, purity is extremely important.

Explanation:

hope this helps...

water is used in car radiators as coolant because of​

Answers

Water is used as a coolant in automobiles radiators because it has high specific heat capacity. So, it absorbs a large amount of heat for a degree rise in temperature.

A beam of light has a wavelength of 5.06*10^ ^ 7m What is the frequency of the light?

Answers

Answer:

59.23499537

Explanation:


3. The only way to protect against the damage from a collision is to reduce the
by wearing what protective football gear?

Answers

some knee pads for soccer

The effect of collision during a soccer game can be minimized by wearing a shin protection gear called the shin guard.

The protection gear is usually worn in other to palliate the effect of collison during sporting activities.

As for football, the most vulnerable part of the body which is usually prone to damage during collision is the shin or knee.

Therefore, players often wear shin protection gear in other to minimize the risk of damage during collision.

Learn more :https://brainly.com/question/18519965

A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is her acceleration? Is the acceleration higher of another cyclist who accelerates from 0 to 30 m/s in 8 seconds? How do you know?

Answers

Answer:

Acceleration of one cyclist=[tex]2.67m/s^2[/tex]

Yes, the acceleration is higher of another cyclist who accelerates from 0 to 30 m/s in 8 seconds.

Explanation:

We are given that

Initial velocity of one cyclist, u=0 m/s

Final velocity of one cyclist, v=8m/s

Time, t=3 s

Initial velocity of another cyclist, u'=0

Final velocity of another cyclist, v'=30m/s

Time, t'=8 s

We know that

Acceleration, [tex]a=\frac{v-u}{t}[/tex]

Using the formula

[tex]a=\frac{8-0}{3}=\frac{8}{3}=2.67m/s^2[/tex]

Acceleration of one cyclist=[tex]2.67m/s^2[/tex]

Acceleration of another cyclist, a'=[tex]\frac{30-0}{8}m/s^2[/tex]

Acceleration of another cyclist, a'=[tex]3.75m/s^2[/tex]

Yes, the acceleration of another cyclist is higher than the cyclist which accelerates from 0m/s to 8m/s.

Can someone help me?in the phy

Answers

Answer:

so your answer is gonna be the first one which is A

Car manufacturers use radiation for which task? sealing windows drying paint cleaning tires lubricating engines

Answers

Answer: drying paint

Explanation:

From the options that are given in the question, we should note that car manufacturers use radiation for drying paint.

The radiation is vital as it keeps the car cool and also helps in the reduction if heat in the vehicle. The other options such as sealing windows, cleaning tires and lubricating engines aren't true as radiation isn't used for that purpose by the car manufacturers.

Answer:

drying paint

Explanation:

Are moons 1-4 waxing are waning ?

Answers

Answer:

I want to help you but i cant.

Explanation:

please provide a screenshot or photos of moons 1-4

John is hiking and notices a small stream of water flowing down the side of the mountain. What part of the water cycle is John observing?
Question 3 options:

Runoff

Evaporation

Condensation

Precipitation

Answers

Answer:

A runoff

Explanation: A runoff is when frozen water melts so if it falls down a mouantan there probably melting ice hope this helps :} pls give brainlest

John is hiking and notices a small stream of water flowing down the side of the mountain. In this John is experiencing runoff of the water cycle. Thus, the correct option is A.

What is Runoff?

Surface runoff is the flow of water which is occurring on the ground surface when there is excess rainwater, storm water, melt water, or other sources of water, which can no longer sufficiently rapidly infiltrate in the soil of the region.

Runoff occurs in the excessive rainwater and it saturates the ground surface. Rivers and lakes are the results of water runoff. There is some evaporation from the water runoff into the atmosphere however for the most part water in the rivers and lakes returns back to the oceans.


Therefore, the correct option is A.

Learn more about Runoff here:

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One can expect good quality produce if proper attention is given to the proper
selection of planting materials. TRUE or FALSE ?

Answers

Answer:

True.

Explanation:

One can expect good quality produce if proper attention is given to the proper selection of planting materials.

True or false: Energy is everything and the whole universe is governed by energy

Answers

Answer:

True

Explanation:

I took the test

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