The relative density of fully charged car battery is --------.A. 2.15B. 1.52C. 1.25

Answer:

The higher the amplitude, the higher the energy.

Answer:

Explanation:

The Mayo Clinic staff recommends drinking caffeinated beverages judiciously because excessive caffeine consumption can have negative health effects. While moderate caffeine consumption (about 400 mg per day, or the equivalent of four 8-ounce cups of coffee) is generally considered safe for most people, consuming too much caffeine can lead to a variety of negative side effects, including:

1. Insomnia: Caffeine is a stimulant that can interfere with sleep patterns and make it difficult to fall asleep or stay asleep.

2. Anxiety and restlessness: Caffeine can increase feelings of anxiety and restlessness, particularly in people who are sensitive to caffeine.

3. Digestive issues: Caffeine can increase stomach acid production, which can lead to digestive issues such as acid reflux, heartburn, and stomach ulcers.

4. Rapid heartbeat: Consuming too much caffeine can cause an irregular or rapid heartbeat, which can be dangerous for people with underlying heart conditions.

Answer:

Explanation:

From the given information:

Let's assume that the missing function is:

s(t) = t³ - 6t², t ≥ 0

From part (b), we are to find the given  required terms when time t = 2

So; from the function s(t) =  t³ - 6t², t ≥ 0

\(velocity \ v(t) \ = \dfrac{d}{dt}s(t)\)

\(velocity \ v(t) \ = \dfrac{d}{dt}(t^3 - 6t^2)\)

\(velocity \ v(t) \ = 3t^2 - 12t\)

\(acceleration a(t) = \dfrac{d}{dt}*v(t)\)

\(acceleration a(t) = \dfrac{d}{dt}(3t^2 - 12 t)\)

\(acceleration\ a(t) = 6t - 12\)

At time t = 2

The position; S(2) = (2)² - 6(2)²

S(2) = 8 - 6(4)

S(2) = 8 - 24

S(2) = - 16 ft

v(2) = 3(2)² - 12 (2)

v(2) = 3(4) - 24

v(2) = 12 - 24

v(2) = - 12 ft/s

speed = |v(2)|

|v(2)|  = |(-12)|

|v(2)| = 12 ft/s

acceleration = 6t - 12

acceleration = 6(2) - 12

acceleration =  12 - 12

acceleration =  0 ft/s²

Answer:

Negative

Explanation:

Answer:

Explanation:

I will GUESS that we're supposed to be looking at a plot of a position in time.

IF that is the case.

THEN the answer would be Point B because it has the steepest slope.

a) The image is attached to this answer

b) The kinetic friction force affects the forward force of the ball.

The force that opposes a rolling ball's motion is called rolling friction. It slows the ball down by acting in the opposite direction to that of the ball's motion. The weight of the ball and the type of the surface are two variables that affect rolling friction.

The force that a surface uses to maintain the weight of an object that is resting on it is known as the normal force. When a ball is rolling, the normal force exerts itself perpendicular to the surface the ball is moving on. It maintains the ball's weight balance and offers the required reaction force for rolling motion.

Learn more about rolling ball:https://brainly.com/question/29409976

#SPJ1

The radius of the wire that would exhibit some strain the same strain as a spider is 0.06m.

The strain in a wire is given by the change in length divided by the original length, and is equal to the force applied divided by the cross-sectional area times the Young's modulus.

The force applied to the spider's thread is the weight of the spider, which is 1.0 x 10⁻³ kg x 9.8 m/s² = 9.8 x 10⁻³N.

The original length of the spider's thread is L = h, where h is the height of the spider.

The change in length is given by ΔL = FL/AY, where F is the force applied, L is the original length, A is the cross-sectional area, and Y is the Young's modulus.

Solving for the cross-sectional area, A = FL/ΔL = FL/ (FY/Y) = FLY/F = LY/F = πr²

We can now substitute the known values into the equation and solve for the radius, r:

πr² = LY/F = hY/F = 4.5 x 10 N/m² x (13 x 10⁻⁶ m) / (9.8 x 10⁻³ N)

r = sqrt(hY/Fπ) = sqrt(4.5 x 10 N/m² x (13 x 10⁻⁶ m) / (9.8 x 10⁻³ Nπ))

The radius of the aluminum wire that would exhibit the same strain as the spider's thread is the same as the calculated radius, 0.06m.

Learn more on wire radius here: https://brainly.com/question/14771859

#SPJ1

Answer:

v_wind = 101.46 km / h   ,  θ = 61.8

Explanation:

This is a velocity composition exercise.

Let's do the problem in parts. Let's start by knowing the speed of the plane without air.

           v = d / t

           v = 750 / 3.14

           v = 238.85 km / h

This is the speed of the plane relative to the Earth and it does not change.

In the second part, when there is wind, the travel time is greater than when there is no wind, therefore the wind delays the plane. To be more general, suppose that the wind has two components vₓ and \(v_{y}\)

Let's use trigonometry to find the components of the plane's speed

          cos θ = v_N / v

          sin θ  = v_W / v

          v_N = v cos θ

          v_W = v sin θ

let's calculate

          V _N = 238.85 cos 22 = 221.46 km / h

           v_W = -238.85 sin 22 = -89.47

the negative sign is because the plane is going west and the positive sign is the east direction.

As it indicates that the destination of the avine is towards the north, the x component of the wind must be

              vₓ - v_W = 0

              vₓ = v-w

              vₓ = 89.47 km / h

in the direction to the East.

Now let's analyze the component of the wind in the Nort-South direction,

Indicate the travel time, let's calculate the speed that the component must have the speed of the plane

             v_total = d / t

             v_total = 750 / 4.32

             v_total = 173.61 km / h

This is the final speed of the plane, which can be written

              v_total = v_n - vy

               vy = v_n - v_total

               vy = 221.46 - 173.61

               vy = 47.85 km

this component is directed towards the south

Let's use the Pythagorean Theorem, to find the magnitude

             v_wind² = vₓ² + vy²

             v_wind = √ (89.47² + 47.85²)

             v_wind = 101.46 km / h

the address will then be found using trigonometry

             θ = Vy / vx

             θ = tan⁻¹ (vy / vx)

             θ = tan⁻¹1 (47.85 / 89.47)

             θ = 28.14

Therefore, the magnitude of the wind speed is 101.5 km / h and its direction is 28º south of the East, to give this value

                  90- θtea = 90- 28.2

                  θ = 61.8

East of South

Option C. The heat absorbed or lost by a substance while it's changing state  correctly describes latent heat

Latent heat is the heat absorbed or lost by a substance while it is changing state.

The latent heat is a type of heat that is transferred during phase change, i.e., while a substance undergoes a change of state.

For example, when ice melts into liquid water, or when liquid water evaporates into water vapor, heat is absorbed from the surroundings.

Latent heat is not associated with a temperature change; rather, it's associated with a change of state.

For instance, the temperature of water remains at 100°C while boiling.

When water is boiling, the latent heat of vaporization is absorbed and utilized to break the hydrogen bonds holding water molecules together to change water from the liquid phase to the gaseous phase.

When the water is boiling, adding more heat won't increase the water's temperature, instead, the extra heat will be absorbed to change the phase of water molecules.

Therefore, the correct answer to the given question is option C: The heat absorbed or lost by a substance while it is changing state.

For more questions on latent heat

https://brainly.com/question/10765874

#SPJ8

Answer:

Radius of curvature of the mirror = 250 cm

Explanation:

Given:

Object distance from mirror = 250 cm (u=-250)

Object distance appears in mirror = 250 cm (v=-250)

Find:

Radius of curvature of the mirror

Computation:

Using mirror formula

1/f = 1/v + 1/u

1/f = 1/(-250) + 1/(-250)

f = (-250/2)

f = -125 cm or 125 cm

Radius of curvature of the mirror = 2(f)

Radius of curvature of the mirror = 2(125)

Radius of curvature of the mirror = 250 cm

Here is your answer,

As the heat capacities are equal , so m₁S₁ = m₂S₂

Let S be the specific heat of the composite body. Then,

(m₁ + m₂) S = m₁S₁ + m₂S₂

= m₁S₁ + m₁S₁ = 2 m₁S₁

S = 2 m₁S₁/m₁+ m₂ = 2 m₁S₁/ m₁ + m₁ + m₁ S₁/S₂

= 2 S₁S₂/S₁ + S₂

Competition in the Los Angeles Flower District results in better quality flowers.

Competition results in better quality flowers because in the competition, best quality of flowers will be selected as a winner so the competitors produces best quality of flowers in order to claim the prize so we can conclude that Competition in the Los Angeles Flower District results in better quality flowers

Learn more about competition here: https://brainly.com/question/25605883

Answer: A cloud of stellar dust from part of a Nebula collapsed causing hydrogen atoms to fuse together

Explanation:

Answer:

Ice and Rock

Explanation:

There's also dust and sand mixed up

Answer:

b. throw it against a net i think

Answer:

Explanation: someone help me please you want free points right

The wavelength of the spectrum is 3.83

Wavelength is a fundamental concept in physics that refers to the distance between two consecutive points on a wave that are in phase, meaning that they have the same position in the cycle of the wave. In other words,

it is the distance that a wave travels to complete one full cycle.

Wavelength is usually denoted by the Greek letter lambda (λ) and is typically measured in meters or other units of length, depending on the scale of the wave being considered

The wave consists of 3.5 cycles and the total distance is 13.4

hence for one cycle we have

= 13.4 / 3.5

= 3.828

= 3.83 in 2 decimal place

Learn more about wavelength at:

https://brainly.com/question/10728818

#SPJ1

C. 10,200 N is how much energy was lost due to air resistance while she was bouncing

The energy lost due to air resistance while the bungee jumper was bouncing can be calculated by finding the total mechanical energy of the system at the beginning of the jump and comparing it to the total mechanical energy at the end of the jump.

At the beginning of the jump, the total mechanical energy is given by:

Ei = mgh

where m is the mass of the bungee jumper, g is the acceleration due to gravity, and h is the height of the bridge. Therefore, at the beginning of the jump:

50 x 30 x 10 - 1/2 x 30^2 x 10

= 15000 - 4500

= 10,200 N

Read more on energy here:https://brainly.com/question/13881533

#SPJ1

Explanation:

kinetic energy was converted to potential energy in the spring.

the answer is in the above image

Answer:

medication error thats easy

Due to the relationship between linear and angular speed, the candidate's speed is 13.3 m/s

A satellite orbiting the earth is one of the example of a circular motion. The satellite will experience gravitational attraction towards the center of the earth. This attraction force provides the centripetal force

Given that a prospective astronaut is spun around in a human centrifuge such that the candidate experiences a centripetal acceleration that is 2.5 times the acceleration due to gravity on the surface of the earth. If the candidate is 7.27 m from the center, the parameters to work on are

To determine the candidate's speed in meters per second, let us first find its angular speed w in rad/s by using the formula

a = w²r

24.5 = 7.27w²

w² = 24.5 / 7.27

w² = 3.37

w = √3.37

w = 1.84 rad/s

The relationship between linear and angular speed is

v = wr

v = 1.84 × 7.27

v = 13.3 m/s

Therefore, the candidate's speed in meters per second is 13.3 m/s

Learn more about Circular Motion here: https://brainly.com/question/106339

#SPJ1

Answer:

Explanation:

I'm going to guess that you want the net force.

These two forces are acting in opposite directions. Therefore the forces are subtracted in effect.

F = F1 - F2

F1 = 22N to the right

F2 = 13N to the left

F = 22 - 13 = 9 N to the right.

Specifying the direction is very important. Forces do have directions and you must specify what that is. Otherwise, the question should be marked incorrect.

The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

To learn more about acceleration

https://brainly.com/question/2303856

#SPJ8

Answer: mass is neither created nor destroyed

Explanation: For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.

Electrostatic sensitive devices can be easily damaged by static electricity discharge.

These are mainly integrated circuits or ICs which usually operate at low voltages.

These devices can be easily damaged by static electricity discharge.

By observing the graph we get : hot above 21 going towards 21, cold below 21 going towards 21

Examine your data.

If necessary, compute an average for each of your experiment's trials.

Be sure to give each table and graph a clear label.

Put the dependent variable on the y-axis and the independent variable on the graph's x-axis.

Graphs present information to you as a picture or visual representation. This knowledge is referred to as "data." When you put data into a picture, it can appear lean or bulky, lengthy or short. In other words, there are occasions when we have a ton of data, which calls for numerous graphs.

To know more about graph you may visit :

https://brainly.com/question/17267403

#SPJ4

The much more likely temperature change for each cups from 0 min - 40 min is shown by warm above 21 heading towards 21 and chilly below 21 going near 21.

The temperature of the system serves as a proxy for its overall kinetic energy. The temperature of a system rises as the kinetic energy of the system begins to rise as even the particle's velocity rises. Heat is the term used to describe the energy that is transmitted between two components with different temperatures.

The temperatures of an element is the most accurate analog for something akin to the angular momentum of a particle. The average energy of an object's constituent particles can be calculated along with its temperature. As the temperature increases, the molecules travel more rapidly.

To know more about temperature visit:

https://brainly.com/question/12344059

#SPJ1

Answer:

Heat capacity.

Thermal Expansion.

Thermal conductivity.

Thermal stress.

Explanation:

there

The current required for a uniform bar to be in rotational equilibrium when it is at an angle of 30.0° above the horizontal and carrying a current I in a magnetic field B is zero, as the torque acting on the bar is zero at this angle.

To find the current I in the bar for it to be in rotational equilibrium when it is at an angle of 30.0° above the horizontal, we need to use the torque equation for a uniform bar carrying a current I in a magnetic field B:

τ = 1/2 IBL² sinθ

where τ is the torque, I is the current, B is the magnetic field, L is the length of the bar, and θ is the angle of the bar relative to the magnetic field.

Since we want the bar to be in rotational equilibrium, the torque must be zero, so we can set the torque equation equal to zero:

0 = 1/2 IBL² sin30°

Solving for I, we get:

I = 0 / (1/2 B L² sin30°)

I = 0

Therefore, the current required for the bar to be in rotational equilibrium when it is at an angle of 30.0° above the horizontal is zero. This is because the torque acting on the bar is zero at this angle, which means that the bar is not experiencing any rotational force and is already in rotational equilibrium.

To know more about magnetic field please refer: https://brainly.com/question/23096032

#SPJ1