Erica tells Michael she is 160 centimeters tall, while Michael says he is 70 inches tall. If there are 2.54 centimeters in an inch, whos taller?

The acceleration of the ball is  0.813m/s^2

We know that according to second law of motion,

F= ma

Total force = 10N+2.2N= 12.2N

M= 15 kg

a= F/M = 12.2/15= 0.813m/s^2

Newton's first law of motion describes the behavior of objects whose forces are all balanced. The first law, often known as the law of inertia, asserts that if the forces acting on an object are balanced, the object's acceleration is 0 m/s/s. Objects in equilibrium (the state in which all forces are equal) will not accelerate. Newton stated that an object will only accelerate if it is subjected to a net or unbalanced force. An item will accelerate in the presence of an imbalanced force, changing its speed, direction, or both speed and direction.

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Answer:

the inertia of an object

The new orbital speed after friction from the earth's upper atmosphere is 8674.15 m/s.

When the work done by a force does not depend on the choice of path, the force is called the conservative force. Some examples are a gravitational force, elastic spring force and electric force. On the other hand, when the work done by a force relies on the choice of the path of the motion, it is called non-conservative force.

The net work done by non-conservative force is W = ΔK + ΔP ----(1)

Given that, work done W = -7.5 * 10⁹ J

Change in kinetic energy = (Kf - Ki)

Final kinetic energy Kf = 1/2* m * Vf²

Initial kinetic energy Ki = 1/2* m * Vi²

Mass of the satellite m = 848 kg

Vf = Final speed

Vi = Initial speed = 9640 m/s

Change in gravitational potential energy ΔP = 0

Substituting the values in (1),

1/2* m (Vf² - Vi²) = W

1/2 * 848( Vf² -9640²) = W

Making Vf as subject,

Vf = √( 2W/m + Vi²)

⇒ √( -2* 7.5 * 10⁹/848 + 9640²)

⇒ 8674.15 m/s

Thus, the final speed decreases due to friction.

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There are three types of lunar eclipses: total, partial, and penumbral.

During a total lunar eclipse, the moon is completely shadowed by the Earth, resulting in a reddish-brown color. In a partial lunar eclipse, only a portion of the moon is shadowed, while in a penumbral lunar eclipse, the moon passes through the Earth's outer shadow, resulting in a subtle darkening of the moon's surface. These classifications are based on the degree to which the moon passes through the Earth's shadow during the eclipse.

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Answer:

B

explanation:

The car is not making a change in speed.

Answer:

To summarize:

The weight of the box is 123.88 NThe net force acting on the box is 17 N (to the right)The acceleration of the box is 1.35 m/s^2 (to the right)

And the Free Body Diagram is:

\([box]^||54 N (applied force)|||v37 N (friction)\)

Explanation:

Given:

To calculate the weight of the box:

Free Body Diagram:

\([box]^||54 N (applied force)|||v37 N (friction)\)

Net force acting on the box:

To calculate the acceleration of the box:

Two like masses are attracted to one another by gravitational forces.

Is the force of gravitation between two masses always alluring?

Any two bodies in our world will gravitationally attract one another, according to Newton's law of gravitation. Therefore, the gravitational attraction between two masses is constant.

The gravitational force created by one mass would be better represented by the electromagnetic field of a negative charge. This is thus because both the field representation of a negative charge and the gravitational force between two masses are attractive forces. When placed in an electric field, a positive charge will often move in the direction of the electric field lines, while a negative charge would typically move in the opposite way.

When a positive charge and a negative charge interact, their forces move from the positive to the negative charge in the same manner. The electric field and consequent forces produced by two electrical charges of opposing polarity cause opposite charges to attract one another. Compared to gravitational forces, electrostatic forces are substantially stronger. This is due to the fact that gravity is dependent on mass, and since atoms have such little masses, there is almost no gravitational pull between them. The electrostatic force, however, is greater when there are charges present.

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Answer:

1.5x10^-4C

C=Couloumb's

Explanation:

Expression for the electric force between the two charges is given by -

F = (k*q1*q2) / r^2

Here, k = constant = 9 x 10^9 N*m^2 / C^2

F=25N

q1 = 1.9x10^-6 x 10^-6 C

q2 = ?

r = 0.32m

Substitute the given values in the above expression -

25N= 9x10^9 *1.9x10^-6 *q2 / 0.32m^2

25N= 17,100*q2 / 0.1024m

Next part is algebra     multiply both sides by 0.1024 to remove denominator

2.56=17,100*q2  

Divide both sides to isolate q2

q2= 1.5x10^-4C

Answer:b

Explanation:

i just did the quiz i was look for it too then got it

The point on this graph do reactants begin to produce products as they collide is B.

The chemical reaction is the reaction between two reactants which led to the formation of products.

The products are substances which forms after reaction. The reactants are the substances which are original materials.

This graph shows how the reactants are reacted and products are formed in a chemical reaction.

As the reaction proceeds, the potential energy is higher when reactants begin to produce products.

Thus, the point on this graph do reactants begin to produce products as they collide is B.

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The rope's tension pulling the skier up the slope is around 546.5 N.

The tension in the rope pulling the 67-kg skier up the 40° slope can be calculated using the given information.

The force of gravity acting on the skier is given by the formula:

F_gravity = m * g

where m is the mass of the skier and g is the acceleration due to gravity. Substituting the values:

F_gravity = 67 kg * 9.8 m/s²

The force of friction opposing the skier's motion up the slope can be calculated using the formula:

F_friction = μ_k * F_normal

where μ_k is the coefficient of kinetic friction and F_normal is the normal force. Since the slope is inclined at an angle of 40°, the normal force is equal to the component of the gravitational force perpendicular to the slope:

F_normal = m * g * cos(40°)

Substituting the values:

F_normal = 67 kg * 9.8 m/s² * cos(40°)

The net force acting on the skier in the direction of motion is given by:

F_net = F_tension - F_friction

Since the skier is moving at a constant speed, the net force is zero:

F_net = 0

Therefore, we can write:

F_tension - F_friction = 0

Solving for F_tension:

F_tension = F_friction

Substituting the values:

F_tension = μ_k * F_normal

Calculating the expression:

F_tension = 0.20 * (67 kg * 9.8 m/s² * cos(40°))

Therefore, the tension in the rope pulling the skier up the slope is approximately 546.5 N.

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This statement is True-  in a driven LCR circuit, the peak value for voltage does not occur at the same time as the peak value for current. they are separated by some phase angle.

An LCR circuit is an electrical circuit that consists of an inductor (L), capacitor (C), and resistor (R) linked in series or parallel. It is also referred to as a tuned circuit, resonant circuit, or LCR circuit. Phasors provide a better framework for understanding the LCR circuit analysis. A spinning quantity is a phasor.

A crucial illustration of a resonant circuit is the LCR circuit. At resonance, the phase angle is equal to zero and the impedance is at its lowest value, Z=R. To control the amount of light emitted by electronic devices like computers, televisions, and smartphones, the LCR circuit is a component of these gadgets.

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The sample of the solid in grams is 5.5g

HOW TO CALCULATE SPECIFIC HEAT CAPACITY:

Q = m × c × ∆T

Where;

Q = quantity of heat absorbed/released (cal)

m = mass of the substance (g)

c = specific heat (cal/g°C)

∆T = change in temperature (°C)

Q = 7.90Kcal = 7900cal

m = ?

c = 11.5 cal/g°C

T1 = 135K = 135K − 273.15 = -138.1°C

T2 = 260K = 260K − 273.15 = -13.15°C

∆T = -13.15 - (-138.1) = 124.95°C

m = Q ÷ c∆T

m = 7900 ÷ (11.5 × 124.95)

m = 7900 ÷ 1436.93

m = 5.5grams.

Therefore, the sample of the solid in grams is 5.5g.

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Answer:

1030 km

Explanation:

t= 9 hours

t1= 5 hours

s1= 106 km/h

d1 + d2= d

t1 + t2 =t

5 hours + t2 =9 hours

t2= 5 hours - 9 hours

t2= 4 hours

s2= 125km/h

d= ?

s= d/t

s1= d1/t1

106= d1/5

d1= 106 x 5

d1= 530km

s2= d2/t

125= d2/4

d2= 125 x 4

d2= 500km

d= d1 + d2

d= 530 + 500

d= 1030km

Answer:

Explanation:

Warmth or a burning sensation in your hands can also be a symptom of peripheral neuropathy. This condition involves nerve dysfunction due to nerve damage from an underlying condition. Other symptoms may include: tingling in the hands or feet

Answer:

Because when you hand touches it the fire has been heating up the pan so it’s hot

Explanation:

Answer:

it is

option A . Tuberculosis ✔

the answer for 0.429m to mm is 429

Answer:

0.429m=429 mm

Explanation:

Since there are 1,000 millimeters per meter, you need to multiply by 1,000 to convert from meters to millimeters.

If a book is pushed across a horizontal table at a constant speed, it means that the force applied to the book is balanced by the frictional force acting on it. The book's velocity remains constant because the net force acting on it is zero.

This is known as Newton's first law of motion, which states that an object will remain in a state of rest or uniform motion in a straight line unless acted upon by an external force. Therefore, the book will continue to move across the table at a constant speed until a force is applied to change its motion.

A book is pushed across a horizontal table at a constant speed, which involves terms such as friction, normal force, and Newton's laws of motion. In this scenario, the force applied to the book is equal to the frictional force acting in the opposite direction, resulting in a constant speed. The normal force, exerted by the table on the book, is perpendicular to the horizontal surface and equal to the weight of the book. According to Newton's first law of motion, the forces acting on the book are balanced, maintaining its constant speed and preventing any acceleration.

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Answer:

These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline). This process is known as thermohaline circulation.

Explanation:

calorimeter with iron will have the higher temperature at thermal equilibrium.

The particular heat capacity (symbol c) of a material in thermodynamics is the heat capacity of a sample of the substance divided by the mass of the sample, also known as massic heat capacity. Informally, it is the quantity of heat that must be added to one unit of mass of the substance to generate one unit of temperature increase. Specific heat capacity is measured in joules per kelvin per kilogramme, or J⋅kg−1⋅K−1,  The heat required to increase the temperature of 1 kilogramme of water by 1 K, for example, is 4184 joules, hence the specific heat capacity of water is 4184 J⋅kg−1⋅K−1. calorimeter with high specific heat  have the higher temperature at thermal equilibrium.

In this problem, specific heat of lead is 120 J/kg.°C. and that of iron is  450 J/kg°C.

if the both elements are heated from room temperature 25°C to 100°C,

Total heat contained in lead is,

Q = cmΔT = 120×0.05kg×75°C = 450 J

Total heat contained in iron is,

Q = cmΔT = 450×0.05kg×75°C = 1687 J

Specific heat of the water is 4.2 J/g°C.

Temperature of the calorimeter due to lead

T₂ - T₁ = Q/cm = 450/4.2×100

T₂ - 25 = 1.07

T₂ = 1.07 +25 = 26.07°C

Temperature of the calorimeter due to iron

T₂ - T₁ = Q/cm = 1687 /4.2×100

T₂ - 25 = 4.01

T₂ = 4.01 + 25 = 29.01 °C

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Lighting is accompanied with

A. large amount of electric current and high temperature

Be sure the exhaust system is clear before starting a car in the snow. Flooding issues may worsen if more streets and parking lots are constructed. As the tires heat up, tire pressure rises.

Buffeting is the structural reaction to entering flow's varying wind velocity's unstable loading. The broad stream of air that moves relative to the earth's surface carries several eddies with different sizes and rotational properties, which make up wind.

That is referred to as wind buffeting, which is the turbulent wind pressure encountered while traveling at a high speed.

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Answer:

2.613 hp

Explanation:

We know that

Power=Work done/time  

Power=Work done * Distance/ time  ----->eq(1)

where,

Work done=Mg  

Distance=0.4m

time=1 s

where M=>mass of the object,

g=>acceleration due to gravity

g=9.8 m/s² and M=500Kg

So,

Work done=500 * 9.8=4900 J

Substituting the values in eq(1) we get

Power = (4900*0.4)/1 = 1960 Watt

750 Watt = 1 hp

1960 Watt = (1*1960)/750

                 =2.613 hp

The amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.

To determine the amount of heat required to raise the temperature of 10 g of water through 2°C, we will use the formula:Q = m × c × ΔT

Where Q is the amount of heat required, m is the mass of the substance being heated, c is the specific heat capacity of the substance, and ΔT is the change in temperature.

So, for 10 g of water, the mass (m) would be 10 g.

The specific heat capacity (c) of water is 4.184 J/(g°C), so we'll use that value.

And the change in temperature (ΔT) is 2°C.

Substituting these values into the formula, we get:Q = 10 g × 4.184 J/(g°C) × 2°CQ = 83.68 Joules

Therefore, the amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.

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Answer:

20m/s

Explanation:

Given parameters:

Distance of throw = 50m

Time  = 3s

Unknown:

Average speed  = ?

Solution:

Average speed is distance divided by time;

  Average speed  = \(\frac{distance }{time}\)

Insert the parameters and solve;

  Average speed  = \(\frac{50}{3}\)   = 16.66667m/s  = 20m/s

In order to find the horizontal and vertical components of the given vector, we can use the formulas below:

So, if the magnitude of the resultant vector is 145 m/s and the angle is 55°, we have:

The definition of a motion wave is the transfer of energy and momentum between two places in a medium without the physical movement of any substance.

The waves that occur on the surface of water are the ones that people are most familiar with, but waves can also be caused by disturbances in sound and light waves, and the motion of subatomic particles also has wavelike features. As a result, the study of waves is fundamental to the fields of physics and engineering. Vibrations in elastic media, like air, crystalline solids, or stretched strings, are the basic forms of wave motion.

In wave motion, the medium's particles vibrate with relation to their average positions. The medium's particles are not in constant motion from one location to another. When a wave moves across a medium, it does so uniformly in all directions. A wave's velocity is affected by the characteristics of the medium it traverses. When a medium is moving in a wave, energy is being transferred from one location to another. Nothing material can go through the medium. At the time of a wave's passage, the medium as a whole remains stationary. As opposed to the medium itself, only the disturbance moves.

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