calculate speed and velocity of the following. the race car was moving for 3.7 hours and during that time it traveled a distance of 500 miles south. what is the speed the car was travelling?

Answer:

Plantae. Also called the Kingdom Metaphyta, the Kingdom Plantae consists of all multicellular, eukaryotic, and photosynthetic organisms on the planet. Being photosynthetic, these organisms are autotrophs and can make their food using the energy from the sun.

The movement of a pool ball, after being struck by a cue, is an example of Newton's second law of motion.

According to Newton's second law of motion, an object's acceleration is directly proportional to the magnitude of the applied net force.

Newton's second law of motion is also known as law of momentum. It says that the rate of change of momentum is equal to the net force acting.

The cue ball will stop moving immediately after colliding with a still pool ball if it hits it directly. The other ball, which will now be moving forward at the same speed as the cue ball did before the collision, will have received all of the kinetic energy that was in the first ball.

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Answer:

75 N

Explanation:

F = μF = 0.5(150) = 75N

When a meter stick is placed on a support, such as a pivot or fulcrum, it will balance if the center of mass of the meter stick is directly above the support. This is because the center of mass is the point where the weight of the meter stick can be considered to be concentrated, and if this point is directly above the support, the weight will be balanced.

If the center of mass of the meter stick is not directly above the support, the meter stick will not be balanced and will tip over. This is because there will be a net torque acting on the meter stick, which is the product of the weight force and the distance between the center of mass and the support. If the torque is non-zero, the meter stick will rotate until the torque is balanced.

Therefore, to ensure that the meter stick is balanced on the support, the center of mass must be located at the support position. If the center of mass is not at the support position, the meter stick will not balance and will either tip over or rotate until it reaches a balanced position.

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In order to calculate the direction of the vector, first let's draw its components:

since the horizontal component is positive and the vertical component is negative, the vector is pointing to the 4th quadrant.

To calculate the angle, we can use the arc tangent as follows:

Rounding to nearest tenth, the direction is -26.6°.

Answer:

One thing you could do in order to measure your cardiovascular strength you can do a full sprint run. In order to help improve your fitness levels you can swim, jog/run, body weight exercises, and a balanced diet.

Explanation:

Trust me it works

Answer:

A full sprint run is one thing you should do to test your cardiovascular ability. Swimming, jogging/running, body weight workouts, and a well-balanced diet will all help you increase your fitness levels.

Answer:

D. Wavelength

Explanation:

Explanation: the colour of visible light depends on the wavelength of the wave. The visible light spectrum goes approximately from wavelength of 380 nm (corresponding to violet light) to 750 nm (corresponding to red light), and the different colours in between correspond to different wavelengths.

Answer:

Potential, tell me if that's wrong, and sorry if its wrong.

Explanation:

Answer:

B) 2.45 m/s^2 ( not sure i just search it )

The phrase "parallel adaptive fluid–structure interaction simulation of explosions impacting on building structures" refers to a computational method used to study the effects of explosions on buildings. Let's break it down step by step:

"Parallel adaptive": This refers to the use of parallel computing techniques, where multiple processors or cores work together to solve the simulation problem faster. It allows for efficient computation of complex simulations by dividing the workload.

"Fluid–structure interaction": This term describes the interaction between a fluid (such as air or water) and a solid structure (such as a building) in a simulation. It considers how the fluid affects the structure and vice versa. In this case, it refers to how the explosion impacts the building and how the building responds to the explosion.

"Simulation of explosions impacting on building structures": This means that the simulation aims to model the effects of explosions on buildings. It can help researchers and engineers understand how buildings behave under explosive forces, and can be used to design safer structures or develop strategies to mitigate the damage caused by explosions.

The phrase refers to a computational method that uses parallel computing techniques to simulate the interaction between fluids and structures, specifically focusing on explosions impacting building structures. This simulation can provide valuable insights into the behavior of buildings under explosive forces.

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Generally speaking, the object distance indicates that the light rays emanating from the object are parallel to one another, resulting in f=-4.221.

A ray is defined as a small, usually straight-traveling beam of light. The laser or laser pointer's light beam is an illustration of a ray. According to the ray model of light, a ray moves in a straight line until it encounters an object, such as a mirror or the boundary between two materials.

image distance is v = 4.7 + (2.1 * 10-2) = -4.721 m the negative

means image is formed behind the lens

Generally the object distance is u = ∞ this mean the light ray coming from the object are parallel to each other.

So from lens equation

=-고=수

=> f = -4.721 m

As an electromagnetic wave, light travels in straight lines along narrow beams of light, which are referred to as rays. Despite the fact that reflection or refraction can alter its direction, light always moves in a straight line.

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Answer:

Its d 3.74 x 10-8N

Explanation:

Answer: 3.74 x 10-8 N

Explanation:

The surface area of the lake is approximately 29,267,937,000 square meters.

To convert the surface area of a lake from square miles to square meters, we need to know the conversion factor between these two units.

1 mile is equivalent to 1.60934 kilometers, and 1 kilometer is equal to 1000 meters. So, to convert square miles to square meters, we need to square the conversion factor.

1 mile² is equivalent to (1.60934 km)² , which is equal to 2.58999 km² . And 1 km²  is equal to (1000 m)² , which is 1,000,000 m^2.

So, the conversion factor from square miles to square meters is 2.58999 km^2 x 1,000,000 m² /km²  = 2,589,990,000 m² .

To find the surface area of the lake in square meters, we multiply the given surface area in square miles (11.3 square miles) by the conversion factor.

11.3 square miles x 2,589,990,000 m² /square mile = 29,267,937,000 m² .

Therefore, the surface area of the lake is approximately 29,267,937,000 square meters.

The surface area of the lake is approximately 29,267,937,000 square meters.

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Answer:

C. The forces are balanced.

Explanation:

Every answer other than C means the object moved.

compressed0.32 meters

Explanation

Step 1

The force exerted by a spring on objects attached to its ends is proportional to the spring's change in length away from its equilibrium length and is always directed towards its equilibrium position.

so

let

replace and solve for x

the negative symbol indicates the spring is compresed

so, the answer is

0.32 meters

I hope this helps you

Answer:

a c d

Explanation:

yeet

Answer:

a c d

Explanation:

The radius of a 1.000-turn coil that carries a 66.000 A current and has a magnetic moment of 5.100 x 10⁻² Am² is approximately 1.568 x 10⁻² meters.

To find the radius of the coil, we will use the formula for the magnetic moment, which is given by:

Magnetic moment (μ) = N * I * A

where N is the number of turns (1.000 turn), I is the current (66.000 A), and A is the area of the coil.

We know the magnetic moment (μ) = 5.100 x 10⁻² Am², so we can solve for the area (A):

A = μ / (N * I) = (5.100 x 10⁻²) / (1.000 * 66.000) = 7.727 x 10⁻⁴ m²

Since the coil is circular, we can use the formula for the area of a circle:

A = π * r²

where r is the radius of the coil.

Now we can solve for the radius (r):

r² = A / π = (7.727 x 10⁻⁴) / π

r² ≈ 2.460 x 10⁻⁴

Taking the square root of both sides:

r ≈ √(2.460 x 10⁻⁴) ≈ 1.568 x 10⁻² m

So, the radius of the coil is approximately 1.568 x 10⁻² meters.

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The #1 answer would be meats and eggs. But, as a veggan, I present you with meatless protien-rich food!

1 - Pea protein (used in Beyond Meat, which tastes just like meat btw!)

2 - Soy protein such as tofu

3 - Nuts

4 - Beans! oml so many beans have MORE protien than meat!! ikr!?!?

may I have Brainliest pls =)

The magnitude of the net force is zero and the direction of the net force is north.

Given that: A 2000kg car is driving north at a steady speed of 90 km/hr (25m/s). The rolling resistance and air friction together is 40000N.To find:The magnitude and direction of the net force.Solution:To find the magnitude of the net force, we need to use Newton's second law of motion, which states that the force acting on an object is equal to the product of the object's mass and its acceleration, that is,F = ma Where,F is the net force acting on the object.m is the mass of the object.a is the acceleration of the object.

To find the direction of the net force, we need to consider the direction of all the forces acting on the object. If all the forces act in the same direction, the direction of the net force is the same as the direction of the forces. If the forces act in opposite directions, the direction of the net force is in the direction of the larger force, that is, the direction of the force that is not canceled out by the other force.

So, we have:m = 2000 kg (mass of the car)a = 0 m/s² (since the car is moving at a constant speed, its acceleration is zero)F_R + F_A = 40000 N (rolling resistance and air friction together is 40000 N)F_net = ma = 2000 kg × 0 m/s² = 0 N (since the car is moving at a constant speed, its acceleration is zero)Since the car is moving north at a steady speed, the direction of the net force is also north. Therefore, the magnitude of the net force is zero and the direction of the net force is north.

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The maximum velocity of the photoelectron is 3.9 x\(10^5\) m/s.

The maximum velocity of a photoelectron emitted from a surface can be calculated using the equation:
KE = hν - Φ
where KE is the maximum kinetic energy of the photoelectron, h is Planck's constant, ν is the frequency of the incident radiation, and Φ is the work function of the surface.

In this case, the wavelength of the radiation is given as 200 nm. We can use the formula c = λν to find the frequency, where c is the speed of light.
ν = c / λ = \((3 x 10^8 m/s) / (200 x 10^-^9 m) = 1.5 x 10^1^5 Hz\)
Substituting the values into the first equation, we get:
KE =\((6.63 x 10^-^3^4 J s)(1.5 x 10^1^5 Hz) - (5.0 eV)(1.6 x 10^-^1^9 J/eV) = 3.14 x 10^-^1^9 J\)
The maximum velocity can be found using the equation:
KE = 1/2\(mv^2\)
where m is the mass of the electron.
v = sqrt((2KE) / m) = sqrt\(((2 x 3.14 x 10^-^1^9 J) / (9.11 x 10^-^3^1 kg)) = 3.9 x 10^5 m/s\)
Therefore, the maximum velocity of the photoelectron emitted from the surface is 3.9 x\(10^5 m/s.\)

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Answer:

there will be no cracks so the trash won't get stuck

Flat broom can cover more amount of area in every sweep. Hence, during  sweeping the floor, it takes less time and less effort compere to the round one. Thus,  the flatter design make sweeping the floor easier.

Engineers go through a set of processes in the engineering design process in order to solve a problem. The procedures include techniques for solving problems, such as choosing your goals and limitations, prototyping, testing, and assessment.

Iterative design follows a set of planned processes, some of which may need to be repeated before going on to the next. This varies depending on the project at hand, but it enables mistakes to be learned from and advancements to be made.

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Your question is incomplete, but most probably your full question was:

The round broom was redesigned into a flat broom. How does the flatter design make sweeping the floor easier?

The Centripetal force changes by a factor of 9.

A body is forced to follow a curved path by a centripetal force. It always moves in a direction that is the opposite of the body's motion and in the direction of the fixed point of the path's immediate center of curvature. "A force by which bodies are dragged or driven, or in any other manner tend, towards a point as to a center," was how Isaac Newton defined it. The centripetal force that causes astronomical orbits in Newtonian physics is provided by gravity.

The scenario in which a body moves uniformly fast along a circular path is one frequent example of centripetal force. In addition to moving along the radius, the centripetal force is also directed at right angles to the motion.

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The spectrum of sunlight, when spread out by a spectrograph, has the characteristic appearance of a continuous band of color, crossed by innumerable dark absorption lines.

Sunlight, or white light, consists of a wide range of colors, which can be separated by a spectrograph into a continuous spectrum ranging from violet to deep red. However, when sunlight passes through the outer layers of the sun and the Earth's atmosphere, certain wavelengths are absorbed by elements and molecules present, creating the dark absorption lines known as Fraunhofer lines.

These lines provide information about the composition and physical conditions in the sun and the Earth's atmosphere and are used in the field of spectroscopy to study various properties of light-emitting and light-absorbing objects.

Therefore, option c is the correct answer .

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Answer:

Patterson isolated lead from fragments of a meteorite that had struck Earth thousands of years ago, and determined the age of the fragments by analyzing proportions of the lead isotopes. The meteorite is assumed to have been formed at the same time as the rest of the solar system, including Earth

Explanation:

Answer:

a

Explanation:

because your trying to decide

The measuring of how light reflects off of mirrors made from different materials falls under the field of optics. Therefore, option (C) is correct.

Optics can be described as the branch of physics that studies the behavior, and properties of light and its interactions with matter and the construction of instruments that detect it. Optics can be described as the behavior of visible, ultraviolet, and infrared light because the light is electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.

The most general is geometric optics which treats light as a collection of rays that travel in straight lines and bend as they pass through or reflect from surfaces.

Physical optics can be described as a more comprehensive model of light, which involves wave effects such as interference and diffraction and that cannot be considered in geometric optics.

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a. For Case 1, the outlet temperature of the ideal gas is 800°C, and for Case 2, the outlet temperature is 1800°C.

b. For Case 1, the rate of entropy generation in the system is 3 kJ/s·K, and for Case 2, it is 5 kJ/s·K.

c. Increasing the temperature of the incoming gas does not change the answers for (a) because the heat transfer and temperature change occur independently in the system.

a. In Case 1, the outlet temperature of the ideal gas is calculated by using the heat transfer equation, Q = mCΔT, where Q is the heat transfer, m is the mass flow rate, C is the heat capacity, and ΔT is the temperature difference.

Substituting the given values, we have Q = (1 kg/s) × (1000°C) × (2000°C - Tout_1), where Tout_1 is the outlet temperature for Case 1. Solving for Tout_1, we find Tout_1 = 800°C. Similarly, for Case 2, the outlet temperature (Tout_2) can be calculated using the same equation, resulting in Tout_2 = 1800°C.

b. The rate of entropy generation in the system can be determined using the equation ΔS = Q/T, where ΔS is the change in entropy, Q is the heat transfer, and T is the temperature. For Case 1, ΔS_1 = Q/T_1 = Q/(2000°C), and for Case 2, ΔS_2 = Q/T_2 = Q/(2000°C).

Since the heat transfer Q is the same for both cases, the rate of entropy generation will be different due to the difference in temperature. Plugging in the values, we find ΔS_1 = 3 kJ/s·K and ΔS_2 = 5 kJ/s·K.

c. Increasing the temperature of the incoming gas does not change the answers for (a) because the heat transfer equation is independent of the temperature of the incoming gas. The outlet temperature of the ideal gas is determined by the heat transfer and the temperature difference, which are unaffected by the incoming gas temperature.

Therefore, increasing or decreasing the incoming gas temperature does not change the outlet temperature of the ideal gas. However, it can affect the rate of entropy generation because the entropy change is directly proportional to the temperature. Higher temperatures result in higher rates of entropy generation.

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