Need help as fast as possible please
Thank you!

Answer:

i believe it’s C. sympathetic

Explanation:

correct me if i’m wrong

Answer:

it helps you estimate how hard you're working (your activity intensity). perceived exertion is how hard you think your body is exercising. ratings on the scale are related to heart rate (how hard your heart is working to move blood through your body).

Explanation:

Answer:

* If it is an incandescent lamp, the increase in temperature of the towel could set it on fire,

* If the towel is wet, there could be a short circuit

Explanation:

Covering the lamp with a towel has several problems:

* If it is an incandescent lamp, the increase in temperature of the towel could set it on fire, which could be a danger

* If the lamp is not incandescent, the temperature rise of the towel is not very high,

* If the towel is wet, there could be a short circuit due to the humidity of the lamp with the wet towel

* If the towel is wet when touched, there could be a shock towards the person due to the electrical conduction

Consequently, covering the bulb with a towel is a serious mistake.

Answer:

If one plays ice hockey he should must have necessary equipment to support his sport. These equipment include Ice Skates,Helmet with Cage and Mouth-guard:, Hockey stick, Hockey pants,Hockey gloves, shoulder pads, elbow pads, Shin Guard:Neck guard and Jockstrap (men) or Pelvic protector (women)

Explanation:

Answer:

If one plays ice hockey he should must have necessary equipment to support his sport. These equipment include Ice Skates,Helmet with Cage and Mouth-guard:, Hockey stick, Hockey pants,Hockey gloves, shoulder pads, elbow pads, Shin Guard:Neck guard and Jockstrap (men) or Pelvic protector (women).

Answer:

Mass = 2.50 kilograms.

Explanation:

Given the following data;

Velocity = 4.3m/s

Kinetic energy = 23.1J

To find the mass of the ball;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting into the equation, we have

23.1 = ½m*4.3²

46.2 = 18.49m

Mass, m = 46.2/18.49

Mass, m = 2.498 ≈ 2.50kg

Answer:

30 celsius

Explanation:

30 celsius = 86 fahrenheit

Answer:

7 m/s

Explanation:

Find the total mass

m1+m2 = total mass

700kg+300kg = 1000kg

Find the velocity of each mass

v1 = 10m/s

v2 = 0m/s

Find the combined momentum

m1v1 + m2v2 = mfvf

(700)(10)+(300)(0)=(1000)(vf)

7000=1000(vf)

7=vf

So the velocity of the two cars rolling together is 7 m/s

Answer:

1. The work done by the wind was 2.475 x 20^8 J.

The wind’s power was 4.4 x 10^5 W.

F = 3.50 x 10^4 N

S = 20.0 km = 20^4 m

W = 3.50 x 10^4 N x 20^4 m x cos 45 = 3.960 x 10^9 J

2.5 h = 9000 s

3.960 x 10^9/9000 = 4.4 x 10^5

2. If the lever is 100% efficient, the worker needs to push his side 0.735 m.

efficiency = work output/work input x 100

100 = 1250 x 0.1/170d x 100

100/100 = 125/170d

1 = 125/170d

170d = 125

d = 125/170

d = 0.735 m

3. work = force x distance

work = 620 x 15 = 9300 J

work = (160)(9.8)(2.50) = 3920 J

160 x 9.8 = 1568 N

1568/620 = 2.529

mechanical advantage = 2.529

(3920/9300) x 100% = 42.151

efficacy = 42.15%

Answer:

250/0.25. * 0.25 =250J

Explanation:

PE=Force*displacement

Answer:

O bike tires on the road as you ride

Explanation:

is the rolling friction

Answer:

B. Bike tires on the road as you ride

Explanation:

Please give brainliest!

Answer:

the switching circuitry is opened the soft iron armature is replaced to tasty le macha the switching circuitry is closed explain what happens when the switch circuit is a wonder you know about the characteristics of open to close this which right take the example of an electric generator for an electric motor which rotates in half rotation and change the armature and just try it ok I am sorry

Answer:

10m/s

Explanation:

Vf=v0+at

30m/s=v0+2.5m/s^2*8s

Solve for v0=10m/s

Sorry for the vague explanation I'm on my phone right now. Hope this still helps!

Initial velocity of the car where final velocity of a car is 30m/s and it is accelerating at a rate of 2.5 [tex]m/s^{2}[/tex] over an 2.8 [tex]m/s^{2}[/tex] 8 second period of time is 10 m/s.

To find the initial velocity of the car, we can use the kinematic equation:

Final velocity (v) = Initial velocity (u) + (Acceleration (a) * Time (t)).

Given the final velocity (v) as 30 m/s, acceleration (a) as 2.5 [tex]m/s^{2}[/tex], and time (t) as 8 seconds, we can plug these values into the equation:

30 m/s = u + (2.5 [tex]m/s^{2}[/tex] * 8 s).

Now, solve for the initial velocity (u):

30 m/s = u + 20 m/s.

Subtract 20 m/s from both sides:

u = 30 m/s - 20 m/s = 10 m/s.

Therefore, the initial velocity of the car is 10 m/s.

To know more about Initial velocity, here

brainly.com/question/28395671

#SPJ2

Answer:

A ball thrown into the air has the most potential energy when it has reached the highest point above the ground before it begins descending. If we consider the vertical motion only beginning when the ball leaves the thrower’s hand, the ball is exchanging kinetic energy for (gravitational) potential energy. When all of the kinetic energy has been transformed, the ball begins falling, and exchanges it’s potential energy back into kinetic energy. If you ignore air resistance, the ball will land with as much energy as it began with.

Answer:

There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its

Answer:

T = 10 seconds

Explanation:

Given that,

A remote car makes 2 revolutions in 20 seconds.

We need to find the period of the object.

It means, it will make [tex]\dfrac{2}{20}=0.1\ \text{revolutions/second}[/tex] .

lt T be the period of the object. So,

[tex]T=\dfrac{1}{0.1}\\\\T=10\ s[/tex]

It will take 10 seconds for one revolution.

Explanation:

electric current is the answer

Answer:

B. Chlorine (CI)

Explanation:

I GUESS I DON'T NEED TO GIVE THE EXPLANATION. CAN I GET SOME REWARDS PLEASE....

THE ANSWER IS: B. Chlorine (CI)

Answer:

Explanation:

Given that:

[tex]q_1 = + 4nC \\ \\ q_2 = -4nC \\ \\ q = 4nC[/tex]

[tex]P_1 = (0,0.04,0) m\\\\ P_2 = (0,0.05,0) m[/tex]

As [tex]q_1[/tex] [tex]\text{is nearer to }[/tex][tex]P_1 \& P_2[/tex] then [tex]q_2,q_1[/tex] [tex]\text{is positive, Thus}[/tex], [tex]E \limits^{\to}[/tex][tex]\text{ will be along the positive X-axis.}[/tex]

Recall that:

[tex]E ^{\to} = \dfrac{-dV}{dr}\implies E_y = \dfrac{-dV}{dy} \\ \\ = \int^{P_2}_{P_1}dV = -\int \limits ^{(0.05)}_{(0.04)}E_y \ dy \\ \\ \implies (V_{P_2}}-V_{(P_1)}) = \dfrac{-2q_5}{4 \pi \varepsilon _o} \int \limits ^{(0.05)}_{(0.04)} \dfrac{dy}{y^3} \\ \\ \implies (V_{P_2}}-V_{(P_1)}) = \dfrac{-2q_5}{4 \pi \varepsilon _o} \Big[ \dfrac{-1}{2y^2} \Big]^{0.05}_{0.04} \\ \\ \implies (V_{P_2}}-V_{(P_1)}) = \dfrac{q_5}{4 \pi \varepsilon _o} \Big[\dfrac{1}{y^2}\Big] ^{0.05}_{0.04}[/tex]

[tex]\\ \\ \implies (V_{P_2}}-V_{P_1}) = \dfrac{(4\times 10^{-9})(8\times 10^{-3})}{4 \pi (8.854 \times 10^{-12})} \Big [\dfrac{1}{(0.05)^2}-\dfrac{1}{(0.04)^2} \Big ]V \\ \\ (V_{P_2}}-V_{P_1}) = \mathbf{-64.71 \ volts}[/tex]

Answer:

  v = 4 m / s

Explanation:

In this exercise we are asked to find the speed of the wave, which is described by the expression

          v = λ f

in this case the wave has 4 nodes and 3 antinodes, in a length of 12 m

for a standing wave it is satisfied that we have a full wavelength and a half of another

          L = λ + ½ λ

          L = [tex]\frac{3}{2}[/tex] λ

          λ = ⅔ L

Cambien indicates that it has a frequency of

          f = 0.5 Hz

we substitute

          v = ⅔ L f

let's calculate

          v = [tex]\frac{2}{3}[/tex] 12 0.5

          v = 4 m / s

Answer:

Everything Except Sec/mi and Days/Year

Explanation:

Remember, Spees= Distance/Time

Answer:

What you did is right. It is m/sec , km/mi and mi/hr

Answer:

hope this is what u want

hope it helps u

Explanation:

don't mind my handwriting I wrote it as fast as I could

Answer:

The actions taken in the initial moments after a crisis matter. These steps can determine how disruptive the aftermath will be. With this in mind, companies need to plan for any potential incidents that could occur. In this blog post, we discuss the importance of emergency planning, the impact it has on a crisis and how to prepare for the worst.

Explanation:

hope you like it

Answer:

Magnitude

Explanation:

B is the answer

Answer:

its B

Explanation:

Answer:

pls explain this to me

Explanation:

I will not answer it

both answers are here in the picture

Answer:

no

Explanation:

Answer:

d or b i think

Explanation:

i looked it up on go ogle :)

Answer:

b

Explanation:

sounds like it should be right