A force of 5 N is applied to the end of a lever that has a length
of 2 meters. If the force is applied directly perpendicular to the
lever, calculate the magnitude of the torque acting on the
lever.

Answer:

λ = 1.19 x 10⁻⁶

Explanation:

The relationship between the half-life of an element and the decay constant of that element is given by the following formula:

[tex]T_{1/2} = \frac{0.693}{\lambda} \\\\\lambda = \frac{0.693}{T_{1/2}}[/tex]

where,

[tex]T_{1/2}[/tex] = half-life = 5.83 x 10⁵ s

λ = decay constant = ?

[tex]\lambda = \frac{0.693}{5.83\ x\ 10^5\ s}[/tex]

λ = 1.19 x 10⁻⁶

a. Particles in warmer objects make particles in colder objects move faster.

Answer:

The answer is true

Answer:

True 1, 2,3, 6, 8 and 10

False 4, 5, 7 and 9

Explanation:

In this exercise, several situations will be analyzed, to know if they are true/false

1) True. Bernoulli's equation is the conservation of energy

2) True. The volumetric expansion is approximately 4 times the linear expansion

3) True. Latent heat is the heat used in a phase transformation and does not change the temperature of the body and the conduction is proportional to the change in temperature.

4) False. The particle can be at rest or at constant velocity

5) False. Acceleration depends on the force of the kick

6) True. The sum of force must be zero

7) False. Reflection occurs at the interface between two different media

8) True. Diverging lenses the focal length is negative

9) False. Manganic energy is the sum of the energies, therefore it must be different from zero

10) True. The electric field is inversely propositional to the square of the distance

Answer: D

Choice A calls B the moon which is incredibly tiny compared to Venus so this is wrong, choice B calls B Venus which is a relatively small planet and C the moon... that is a bit overkill so no. Choice C says B is the moon and C is Jupiter, Jupiter being the largest planet this is a easy no, leaving D to be the only logical and correct answer.

Answer: Answer D. because B. Jupiter is the farthest from Earth from those answer choices and C. is the moon because it is the closest out of those answer choices.

So, the answer is D: B could be Jupiter, and C could be the moon.

Explanation: Please give Brainlist.

Hope this helps!!!!

Answer:

35 Joules

Explanation:

Applying

Input Energy(Q) = Useful energy output(U)+Wasted Energy(W)

Q = U+W.............................. Equation 1

Make U the subject of the equation

U = Q-W................... Equation 2

From the question,

Given: Q = 120 Joules, W = 85 Joules

Substitute these values into equation 2

U = 120-85

U = 35 Joules

Answer:

2/B

6/E

7/F

12/6

Explanation:

Hope this helps i dont know ither i will put if i think of them

Answer:

46 million tons

Explanation:

i dont know what im suppose to explain

Answer:

Antarctica

Explanation:

ap3x

Answer: D

Explanation:

Answer:

C. A lob pass.

Hope this helps!!

Answer:

violet

Explanation:

Answer:

the final velocity of the car is 59.33 m/s [N]

Explanation:

Given;

acceleration of the car, a = 13 m/s²

initial velocity of the car, u = 120 km/h = 33.33 m/s

duration of the car motion, t = 2 s

The final velocity of the car in the same direction is calculated as follows;

v = u + at

where;

v is the final velocity of the car

v = 33.33 + (13 x 2)

v = 59.33 m/s [N]

Therefore, the final velocity of the car is 59.33 m/s [N]

Answer:

Hi

Explanation:

Radiation therapy is commonly applied to the cancerous tumor because of its ability to control cell growth. Ionizing radiation works by damaging the DNA of cancerous tissue leading to cellular death. To spare normal tissues (such as skin or organs which radiation must pass through to treat the tumor), shaped radiation beams are aimed from several angles of exposure to intersect at the tumor, providing a much larger absorbed dose there than in the surrounding healthy tissue

Answer:

Astronomers?

Explanation:

Answer:

Astrophysicist?

Explanation:

Answer:

Explanation:

Therefore, the unit of speed is the meter per second, or m/s. The unit meter per second is called a derived unit, meaning that it is derived from the seven SI base units.

Answer:

Derived SI Units

Explanation

In physics there are many quantities that cannot be expressed by a single base unit. ... Therefore, the unit of speed is the meter per second, or m/s. The unit meter per second is called a derived unit, meaning that it is derived from the seven SI base units.

Answer:

The 1930 FIFA World Cup was the inaugural FIFA World Cup, the world championship for men's national association football teams. It took place in Uruguay from 13 to 30 July 1930.

Explanation:

hope it helps if so pls give it the brainliest answer

Answer:

[tex]\huge\boxed{Uruguay\hookleftarrow}[/tex]

⎇ The first FIFA World Cup Championship took place in Uruguay from from 13 July 1930 to 30 July 1930.

Answer:

The image will be real, inverted, and enlarged. For convex lenses, when the object is placed inside F, the image will be on the same side of the lens as the object and it will be virtual, upright, and enlarged.Feb

Answer:

[tex]E=2.04\times 10^{-18}\ J[/tex]

Explanation:

We need to find the energy for an electron to jump from n = 1 to n = 4.

The energy in transition from 1 state to another is given by :

[tex]E=\dfrac{-2.18\times 10^{-18}}{n^2}\ J[/tex]

The difference in energy for n = 1 to n = 4 is:

[tex]E=-2.18\times 10^{-18}\times (\dfrac{1}{4^2}-1)\\\\E=2.04\times 10^{-18}\ J[/tex]

So, the required energy is equal to [tex]2.04\times 10^{-18}\ J[/tex].

Answer:

A

Explanation:

Answer:

The half-life of a radioactive isotope is the time such that the initial amount of the isotope is reduced to its half.

Thus, if we start with A grams of a given radioactive isotope, after a 1 half-life, we will have A/2 grams of the radioactive isotope.

In this case, we know that the sample has 110g of a radioactive isotope.

Then, after 1 half-life, we should have half of 110g, which is:

110g/2 = 55g

Then we should have 55 g of a radioactive isotope.

The answer that is closer to this result is option d (50 g), so that is the correct one.

Answer:

A

Explanation:

the horizontal and vertical force acting on it consist a net force on the inclined direction (30degrees below the horizontal) you can tell by the length of the horizontal component (try to see the 30degree incline as horizontal, because that's the direction of the displacement). net work done on the system results in an increase in energy. i hope this can help :D, i'm also taking the ap physics 1 exam tommorow.

When the block reaches the bottom, the mechanical energy of the block-Earth system is greater than Eo.

The given parameters:

The work - done on the block is calculated as follows;

[tex]W = F d \times cos(\theta)[/tex]

where;

When the block reaches the bottom, the displacement increases.

Based on work-energy theorem, as the work done increases, the mechanical energy increases as well.

Thus, when the block reaches the bottom, the mechanical energy

of the block-Earth system is greater than Eo.

Learn more about work-energy theorem here: https://brainly.com/question/22236101

Answer:

The correct answer is C I took the mastery test

Explanation:

Answer:

d last one

Explanation:

Explanation:

power =work done/time

work=power ×time

work =30000×10

work =300000j

Answer:

3.135 kN/C

Explanation:

The electric field on the axis of a charged ring with radius R and distance z from the axis is E = qz/{4πε₀[√(z² + R²)]³}

Given that R = 58 cm = 0.58 m, z = 116 cm = 1.16m, q = total charge on ring = λl where λ = charge density on ring = 180 nC/m = 180 × 10⁻⁹ C/m and l = length of ring = 2πR. So q = λl = λ2πR = 180 × 10⁻⁹ C/m × 2π(0.58 m) = 208.8π × 10⁻⁹ C and ε₀ = permittivity of free space = 8.854 × 10⁻¹² F/m

So, E = qz/{4πε₀[√(z² + R²)]³}

E = 208.8π × 10⁻⁹ C × 1.16 m/{4π8.854 × 10⁻¹² F/m[√((1.16 m)² + (0.58 m)²)]³}

E = 242.208 × 10⁻⁹ Cm/{35.416 × 10⁻¹² F/m[√(1.3456 m² + 0.3364 m²)]³}

E = 242.208 × 10⁻⁹ Cm/35.416 × 10⁻¹² F/m[√(1.682 m²)]³}

E = 6.839 × 10³ Cm²/[1.297 m]³F

E = 6.839 × 10³ Cm²/2.182 m³F

E = 3.135 × 10³ V/m

E = 3.135 × 10³ N/C

E = 3.135 kN/C

Answer:D. Jupiter is the closest outer planet to the Sun.

[tex]\tt \: \pink {Option \: D}[/tex]

[tex]:\implies[/tex]Jupiter is the closest outer planet to the Sun.

Answer:

P = 106.7 W

Explanation:

Given that,

Work done in lifting a backpack, W = 80 J

It is lifted in 0.75 seconds

We need to find the power of the student. The power of an object is defined as work done per unit time. So,

[tex]P=\dfrac{W}{t}[/tex]

Put all the values,

[tex]P=\dfrac{80}{0.75}\\\\P=106.7\ W[/tex]

So, the power of the student is 106.7 W.

Answer:

Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed.

Explanation:

Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed. The minimum distance in which a sound wave repeats itself is called its wavelength. That is it is the length of one complete wave

Answer: Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed.

Explanation:

The minimum distance in which a sound wave repeats itself is called its wavelength. That is it is the length of one complete wave.

Answer:

[tex]1.27\:\text{s}[/tex]

Explanation:

We can use the following kinematics equation to solve this problem:

[tex]v_f=v_i+at[/tex]

Solving for [tex]t[/tex]:

[tex]-24.5=-12.1+-9.8t,\\-12.4=-9.8t,\\t=\frac{-12.4}{-9.8}\approx \boxed{1.27\:\mathrm{s}}[/tex]

Answer:

D 3/5 i took this quiz still waiting on grade tho