To who shall answer...
Thank You Very much for am eternally grateful.

Answer:

472.36 N

Explanation:

The total mass with the tire and child would be 45 kg + 3.2 kg = 48.2 kg

Ft = force tension

Fg = force of gravity

Fnet=0 (because child is motionless and not accelerating)

0 = Ft - Fg

Ft = Fg

Ft = m*g

Ft = 48.2 kg * 9.8 m/s^2

Ft = 472.36 N

Hope this helps!!

A 45-kg child sits on a 3.2-kg tire swing. The tension of the rope is 472.36 N.

The parameters given in the question is

Mass of the child= 45 kg

Mass of the tire swing attached to the tree= 3.2 kg

The first step is to calculate the total mass. The total mass can be calculated as follows;

= Mass of the child + mass of the tire swing

= 45 + 3.2

= 48.2 kg

The tension can be calculated as follows,

= mass × acceleration

= 48.2 × 9.8

= 472.36

Hence, A 45-kg child sits on a 3.2-kg tire swing. The tension of the rope is 472.36 N.

Learn more about Tension,

brainly.com/question/21859711

#SPJ5

Answer:

The potential energy stored in the spring is 0.018 J.

Explanation:

Given;

spring constant, k = 90 N/m

extension of the spring, x = 2 cm = 0.02 m

The potential energy stored in the spring is calculated as;

U = ¹/₂kx²

where;

U is the potential energy stored in the spring

Substitute the given values in the equation above;

U = ¹/₂  x  90 N/m  x  (0.02 m)²

U = 0.018 J

Therefore, the  potential energy stored in the spring is 0.018 J.

Answer:

It will become one third of its original value

Explanation:

Answer:

its b

Explanation:

The diagram which correctly represents the temperature of the two substances and the direction of heat flow is shown below.

Heat is also referred to as thermal energy and it can be defined as a form of energy that is transferred from one physical object to another, especially as a result of a difference in temperature.

During the process of heat conduction, heat is primarily transferred between objects with different degrees of temperature and materials that are directly in contact with each other.

In conclusion, heat is generally transferred from a hotter object (37°C represented by the orange circles) to a cooler object (0°C represented by the blue circles) as shown in the image attached below.

Read more on heat here: brainly.com/question/12072129

Answer:

[tex]2.03\times 10^5\ Pa[/tex]

Explanation:

We need to find the extra pressure when you are 10 meters under water. The net pressure on us is given by :

[tex]P=P_o+\rho gh\\\\P=1.05\times 10^5+1000\times 9.8\times 10\\\\P=2.03\times 10^5\ Pa[/tex]

So, [tex]2.03\times 10^5\ Pa[/tex] is exerted on us at 10 m under water.

Answer:2 seconds

Explanation:

According to the given statement The total linear momentum of the bus and the car 890000 Kg • m/s.

Momentum be defined as the intensity of a body's motion. As momentum depends on both velocity and the orientation of the skin's motion, it is quantified by "mass velocity". Since speed is a vector and mass is a scalar, momentum is the product. Momentum propels you through from the finish line after helping you get beyond the initial difficulty of being unable to begin. Gaining momentum will enable you to go closer to your objectives by fostering optimistic thinking and energy.

In Newtonian mechanics, an object's mass and velocity are combined to form momentum, more precisely linear energy or translational momentum. It has both a magnitude and direction, making it a vector quantity.

P₁ =  3,500 kg

P₂ = 18 m/s

m₁ = 1,300 kg

V₁ = 20 m/s.

P₁ + P₂ = m₁V₁ + m₂V₂

3500(18) + 1300(20)

=63000 + 26000

=890000 Kg • m/s

To know more about Momentum visit:

https://brainly.com/question/24030570

#SPJ2

Answer:

The size (diameter) of the basketball's shadow on the wall is approximately 53.38 cm

Explanation:

The given parameters of the basketball are;

The diameter of the basketball = 23 cm (9 inches)

The distance of the light bulb from the closest side of the basketball = 3 m

The distance from the ball to the wall = 4 m

The distance from the light source to the center of the ball, d = 3 m + 0.23/2 m = 3.115 m

The angle the light ray makes with the edge of the ball, θ = arctan(0.115/3.115)

Therefore, the ratio of the shadow width divided by 2 to the distance from the light from the wall = 0.115/3.115

The distance from the light from the wall = 3 m + 4 m + 0.23 m = 7.23 m

Therefore;

((The width of the shadow)/2)/(The distance from the light from the wall) = 0.115/3.115

∴ ((The width of the shadow)/2)/(7.23 m) = 0.115/3.115

((The width of the shadow)/2) = 7.23 m × 0.115/3.115 = 16629/62300 m ≈ 0.2669 m = 26.69 cm

The width (diameter) of the shadow on the wall = 2 × 16629/62300 m ≈ 0.5338 m = 53.38 cm

The size (diameter) of the basketball's shadow on the wall ≈ 53.38 cm

Answer:

Kinetic Energy:120 x 15=1800

Explanation:

Answer:

13500J

Explanation:

Kinetic energy = (1/2×120)kg × (15m/s)^2

KE = 60kg × 225 (m/s)^2 = 13500J

Answer:

GREATER than 1 g/cm. 3, it will SINK in water. LESS than 1 g/cm3, it will FLOAT in water. If an object's density is: Density of Object > Density of Liquid.

Explanation:

Answer:

The metre is currently defined as the length of the path travelled by light in a vacuum in 1299 792 458 of a second

Answer:

magnet b

Explanation:

because it has a stronger current so it attracts more paper clips

Answer:

the type of tomato plants used.

Explanation:

Answer:

5.625km/h

Explanation:

We are given that

Distance between home and market, d=2.5 km

Speed, v1=5km/h

Speed, v2=7.5 km/h

We have to find the average speed of the man over the interval of time 0 to 40min.

Time,[tex]t=\frac{distance}{speed}[/tex]

Using the formula

[tex]t_1=\frac{2.5}{5}=0.5 h=0.5\times 60=30 min[/tex]

1 hour =60 min

[tex]t_2=\frac{2.5}{7.5}=\frac{1}{3}hour=\frac{60}{3}=20min[/tex]

Distance traveled by man in 10 min with speed 7.5 km/h=[tex]\frac{2.5}{20}\times 10=2.5/2km[/tex]

Therefore,

Total distance covered=2.5+2.5/2=3.75 km

Time=40 min=40/60=2/3 hour

Average speed=[tex]\frac{total\;distance}{total\;time}[/tex]

Average speed=[tex]\frac{3.75}{2/3}=5.625km/h[/tex]

Answer:

The water vapor will have the greatest entropy at the triple point

Explanation:

At the triple point of water, which has the properties of 0.0075°C temperature and 6.11657 mbar pressure, solid ice, liquid water and water vapor exist together in a location

According to Professor Stephen Lower on LibreTexts website entropy  is a measure the extent to which thermal energy is shared and spread in a system

The change in entropy, ΔS = ΔH/T

The heat change in [tex]\Delta H_{melting}[/tex] = 6.01 kJ/mol

The heat change in vaporization, [tex]\Delta H_{vaporization}[/tex] = 45.05 kJ/mol

The heat change in sublimation, [tex]\Delta H_{sublimation}[/tex] = 51.06 kJ/mol

Therefore, the entropy of the water vapor [tex]S_{water \ vapor}}[/tex] > The entropy of liquid water, [tex]S_{Liquid \ water}[/tex] > The entropy of the solid ice, [tex]S_{Solid \, ice}[/tex]

The portion with the highest entropy at the triple point is the water vapor

The water vapor will have the greatest entropy at the triple point

Answer:

Lightning is a discharge of electricity. A single stroke of lightning can heat the air around it to 30,000°C (54,000°F)! This extreme heating causes the air to expand explosively fast. The expansion creates a shock wave that turns into a booming sound wave, which is thunder.

Explanation:

:)

Explanation:

Visible light is the range of electromagnetic waves that humans can see. Anything that glows or gives off light makes waves of what we call visible light. The sun, light bulbs, candles and fire are all things that people automatically think of when it comes to light, but visible light comes from many sources and in many colors. Some other sources of visible light include: television and computer screens, glow sticks, and fireworks

Answer:

Visible light is visible because most of the gases in planetary atmospheres (oxygen, nitrogen, carbon dioxide, methane, ammonia…) are transparent to those wavelengths. We evolved to see those wavelengths because the atmosphere in visible light is transparent.

Explanation:

Answer:

Image result for What is one difference between a total solar and a total lunar eclipse?

During a total solar eclipse, the moon passes between Earth and the sun, casting a small, dark shadow on our planet. ... During a lunar eclipse, however, the Earth passes between the moon and the sun, casting its shadow — known as the umbra — onto the moon.

Answer:

D.

Explanation:

The fluids that have no resistance or zero resistance to internal friction are known as non- viscous fluids. • The fluid which has more resistance to flow is called viscous fluid. Viscosity is a property of a fluid, which is a degree of the amount of resistance between the fluid layers.

Answer:

200 m\ s Ans .....

Explanation:

Data:

f = 200 Hz

w = 1.0 m

v = ?

Formula:

v = f w

Solution:

v = ( 200)(1.0)

v = 200 m\s Ans .........

Explanation:

The newton-second (also newton second; symbol: N⋅s or N s)[1] is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.

Newton-second

Impuls Masse Geschwindigkeit.svg

For two objects moving with the same velocity (v), the object with the greater mass (m) will have the greater momentum (p).

Answer:

The answer is 360

Explanation:

Follow me!!!

Answer:

B

Explanation:

Trust me

Wavelength is the only one that CAN be.

A, B, or D can't be.

Answer:

0J

Explanation:

0J just took the test

Answer: 10 c

Explanation:

The cooling system of an automobile motor contains 20 kg of water, then the temperature change of the water is 10 °C.

Heat is the result of the movement of kinetic energy from one substance or item to another, or from an energy source to a substance or object. Radiation, conduction, and convection are three different ways that this energy can be transferred.

The calorie (cal), the primary unit of heat in the International System of Units (SI), is the quantity of energy transfer necessary to raise the temperature of one gram of liquid from water by one degree's Centigrade, provided that the water's temperature is both higher than the freezing point and lesser than the boiling point.

The given data in the question is,

Heat, Q = 836000 J

Volume, V = 20 L

Mass, m = 20 kg

ΔT = Q/m[tex]C_p[/tex]

ΔT = (836000)/(20 × 4180)

ΔT = 10 °C

Therefore, the change in temperature will be equal to  10 °C.

To know more about heat:

https://brainly.com/question/1429452

#SPJ2

Answer:

A

Explanation:

a star is a bolling gas so it not a space rock

A star is not a space rock. Thus, the correct answer is option A.

A star is a type of astronomical object that consists of a luminous spheroid of plasma held together by gravity. The Sun is the closest star to Earth. Many other stars can be seen with the bare eyes at night, but due to their great distances from Earth, they appear as fixed points of light.

Many of the brightest stars have proper names, and the most prominent stars have been classified into constellations . As previously stated, a star is a massive self-luminous celestial body of gas that shines through radiation emitted by its internal energy sources. It is not a space rock.

Therefore, a star, which is self-luminous celestial body made up of gas, is not a space rock.

To learn more about star, click here:

https://brainly.com/question/7379319

#SPJ6