A vector is 0.888 m long and
points in a 205 degree
direction.
Find the y-component of the
vector.
hing
y-component (m)
​

Answer:

reversing the current

Explanation:

Answer:

I'm pretty sure it's Electric Field Lines

Answer:

133225

Explanation:

Answer:

A: 0.83 Hz

Explanation:

Frequency can be calculated in a multitude of ways. The one way that is going to help you solve this problem is (# of times/seconds)

so you would divide 85 swings/102 seconds

= 5/6 or 0.8333 Hz

so your answer is A

Answer:

96w

Explanation:

p=Iv..where v=12 and I=8.0

Answer:6.91 Nm

Explanation:

Answer: C. gamma waves.

Explanation:

:)

Answer:

i dont know im so sorry for making you feel like you

Explanation:

i dont know im so sorry for making you feel like you

Explanation:

Given that,

Vector a = 4i+3j

Vector b = -13i+7j

We need to find the magnitude and direction of (a+b). So,

(a+b) = (4i+3j) + (-13i+7j)

= (4i-13i)+(3j+7j)

= -9i+10j

Magnitude of (a+b).

[tex]|a+b|=\sqrt{(-9)^2+10^2} \\\\=13.45[/tex]

Direction of (a+b),

[tex]\tan\theta=\dfrac{10}{-9}\\\\\theta=\tan^{-1}(\dfrac{-10}{9})\\\\\theta=-48.01^{\circ}[/tex]

Hence, this is the required solution.

Answer:

a.Distance = 150 m

b. Displacement = 50 m

Time lapsed = 5 seconds

Explanation:

a. Distance is the change in the position of an object.

The distance covered by the car = 100 + 50

                                                   = 150 m

b. Since displacement is a vector quantity,

Displacement of the car = 100 - 50

                                        = 50 m due east

c. Time elapsed is the time taken for the motion of the car starting from when its starts to when it stops.

Thus, the time elapsed = 4 + 1

                        = 5 seconds

Answer:

A. coal, oil, natural gas

Explanation:

this is because those three are related to fossil fuels.

Answer:

A:Coal,Oil,Natural gas

Explanation:

that pfp tho

Answer:

140.8/2.54=55.43 inches

Answer:

10.2 km

Explanation:

Displacement is the shortest distance from your original position after movement.

Now, the Zambeef delivery truck moves 18 km north and then 10 km east and then 16 km south.

This means that vertically the truck is 2km short of the 18 km he travelled north..

So we can find the displacement using pythagoras theorem..

Let d be the distance from the current position to the initial position.

Thus;

d² = 2² + 10²

d² = 4 + 100

d = √104

d ≈ 10.2 km

I have attached a diagram showing the direction of this displacement

Answer:

i need this too

Explanation:

Answer:

a. confounding variables.

Explanation:

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

In an experiment , the variable being manipulated by an experimenter is known as an independent variable while the dependent variable is the event expected to change when the independent variable is manipulated.

A confounding variable can be defined as a variable that generally influences both the independent and dependent variable in an experiment or research study. Thus, it creates an association between the two variables in an experiment.

Hence, when conducting research, confounding variables are unintentional factors that creep into your experiment and have the potential to affect or even spoil your results.

The weight of the pail and sand necessary to start the pumpkin moving in this case is less than 11 N.

The force of friction acting on the pumpkin depends on the weight of the pumpkin and the coefficient of static friction.

F = μW

where;

The weight of the pumpkin is calculated as follows;

W = mg

where;

W = 1.8 kg  x  9.8 m/s²

W = 17.64 N

The static friction force preventing the pumpkin from moving is calculated as follows;

F = μW

F = 0.55 x 17.64 N

F = 9.7 N

Thus, the minimum force required to move the pumpkin is 9.7 N which is less than 11 N.

Learn more about static friction force here: https://brainly.com/question/13680415

#SPJ1

The complete question is blow:

Suppose the coefficient of static friction is 0.55 rather than 0.61. is the weight of the pail and sand necessary to start the pumpkin moving in this case greater than, less than or equal to 11 N? calculate the required weight. mass of the pumpkin is 1.8 kg.

Answer:

C    Don't worry if you thought it was D. I almost answered that.

Explanation:

Remark

You can get this just by learning the vocabulary.

Efficiency = Work Out / Work In * 100%

Work in = 30J      That's you swinging the hammer.

Work out = 10 J    That's how much of the hammer's work gets to the nail.

Efficiency = (10/30)*100

Efficiency = 1/3 * 100

Efficiency = 33%

Answer:

I think its 40%, pls correct me if I am wrong :(

Explanation:

Answer:

False

Explanation:

The mass of an object is normally known as the weight of the object. but mass is the amount of matter in the object. Weight is the force exerted on an object by gravity

Answer: False

Explanation: mass is the amount of matter in an object

Answer:

Newton's first law of motion states that an object's motion will not change unless an unbalanced force acts on the object. ... The football player in the photo above is in motion. He will stay in motion unless players on the other team exert an unbalanced force against him.

Explanation:

https://flexbooks.ck12.org/cbook/ck-12-middle-school-physical-science-flexbook-2.0/section/1.4/related/rwa/football-physics/

LINK

Answer:

Magnetic induction cannot be done in a wood because it is not a magnetic person like iron , nickel,and cobalt

Answer:

A....It is a crime sene

Explanation:

Answer:

i have no clue

Explanation:

Complete question is;

Describe how α-radiation is similar to β-radiation?

Answer:

Explained below

Explanation:

The similarity between both alpha radiation and beta radiation is that in both cases, they both show deflection when they go through electric and magnetic fields. Although alpha deflects towards the negative plate while bets deflects towards the positive plate.

Secondly they both have high speeds. Just that alpha is from the helium nucleus while beta is from electrons.

Answer:

54.55 m/s

Explanation:

From the question above,

Change in velocity = impulse/mass

Δv = I/m = Ft/m................... Equation 1

Where F = force, t = time, m = mass

Given: F = 20 N, t = 30 s, m = 11 kg

Substitute these values into equation 1

Δv = (20×30)/11

Δv = 600/11

Δv = 54.55 m/s

Hence the change in velocity of the body is 54.55 m/s

The change in velocity of the body is 54.54 m/s

The velocity of the body of an object is the change of the distance of the object with time.

From the information given:

the mass of the b0dy = 11 kg

the net force F = 20 N

the time (t) = 20 s

Similarly;

Force = ma

20 = 11 ×  (a)

[tex]\mathbf{a = \dfrac{20}{11} \ m/s^2}[/tex]

a = 1.818 m/s²

However, the acceleration of an object is the change in velocity with time.

[tex]\mathbf{a = \dfrac{\Delta V}{t}}[/tex]

ΔV =  (a) ×  (t)

ΔV = 1.818 m/s² × 30 s

ΔV = 54.54 m/s

Learn more about the velocity of an object here:

https://brainly.com/question/626479

Answer:

Sound waves have to travel through solids, gases, and liquids. Sound waves vibrate through the air in matter. Molecules in solids are packed tightly. This allows sound to travel faster through a solid than gas.

Answer:

Mass of bus = 6,818.18 kg (Approx.)

Explanation:

Given:

Velocity = 22 m/s

Momentum = 150,000 kg-m/s

Find:

Mass of bus

Computation:

Mass =  Momentum / Velocity

Mass of bus = 150,000 / 22

Mass of bus = 6,818.18 kg (Approx.)

Answer:

D. Zero

Explanation:

A machine can only do work if it is operational

Answer:The skater has the lowest amount of kinetic energy at the top of the track and lowest potential energy at the lowest point of the track. Kinetic energy is the speed a object is going, and potential energy is the energy a object has when its not moving. While the skater moves up the ramp the potential energy increases, and the kinetic energy decreases because it slows down while moving up the ramp. Hope this helps have a nice day ❤️

Explanation:

First recognize that the total energy of the skater is conserved: this means that the total energy of the skater is constant. The total energy (E) consists of the kinetic energy (KE) and gravitational potential energy (Ug).

E=KE+Ug

Now we know that the gravitational potential energy depends on the distance from the zero of potential (or in simpler terms: how high the skater is from the ground). Now, we are ready to answer the question.

The skater possesses the most KE at point B: remember total energy is a constant and at point B the skater has the least amount of potential energy (since they are at their lowest point above the ground). This means that the skater must have more kinetic energy at point B.

Similarly, at points A and C, the skater possesses the most potential energy since they are at their highest point above the ground.

As the skateboarder moves then it will have the maximum kinetic energy at the lower most portion of the track and will have the zero potential energy at the same point and at the maximum height of the track the skater will have maximum potential energy and zero kinetic energy.

As the skater moves on the track his kinetic and potential energy converts into each other but the total energy remains constant.

Total Energy = KE+PE

At maximum height the kinetic energy will totally convert into the potential energy and becomes zero.and the potential energy becomes maximum at this point.

At Max height (Total energy=Max Potential energy)         KE=0

Similarly at the lower most portion of the track the Potential energy completely convert into the kinetic energy and becomes zero. And kinetic energy becomes max at this point.

At lower point  (Total energy= Max Kinetic Energy)         PE=0

Thus the skater will have the most kinetic energy at the lower most point of the track and least potential energy at the same point.

To know more about energy follow

https://brainly.com/question/1634438