Students set up an experiment with a small block on a ramp. The block of mass M=3.0 kg is released from rest at the top of the curved ramp. The length of the ramp as measured along the curve is L=3.0 m, and the height is h=1.5 m, as shown. There is negligible friction between the small block and the ramp.

The speed of the block at the bottom of the ramp is most nearly
A. 0
B. 5.5 m/s
C. 7.7 m/s
D. 9.5 m/s
E. 13 m/s

Answer:

1.matter made of mass and volume

2.matter is any substance that has mass and takes up a space by having a volume

3.table, coffee, and perfume

4.solid has a strong bonds, liquid has weak bond, and gas no bond

5

Answer:

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

she is k bads boy (into negative)

Explanation:

A. Up along the page

Using the law of the right hand

Final velocity of Jeff's car is 7.133 m/s south. The direction is 59.3° south of east.

In this issue, we can utilize preservation of energy to track down the last speed and course of Jeff's crash mobile after the impact with Julia's. Before the impact, the energy in the x-heading is zero, and in the y-course, it is 60 kg × 4 m/s = 240 kg⋅m/s north. Julia's force is 45 kg × 6 m/s = 270 kg⋅m/s west.After the crash, the energy in the x-course is rationed. The absolute energy in the x-course is as yet zero, as Julia's force that way is likewise zero. In the y-heading, the absolute force after the crash is 60 kg × vj + 45 kg × 2 m/s sin 15°, where vj is Jeff's last speed in the y-course.Utilizing protection of energy, we can compare the force when the crash in the y-heading:

60 kg × 4 m/s + 45 kg × 6 m/s = 60 kg × vj + 45 kg × 2 m/s sin 15°

Working on this situation, we get:

240 kg⋅m/s + 270 kg⋅m/s = 60 kg × vj + 12.19 kg⋅m/s

Addressing for vj, we get:

vj = (240 kg⋅m/s + 270 kg⋅m/s - 12.19 kg⋅m/s)/60 kg

vj = 7.133 m/s south

Consequently, Jeff's last speed is 7.133 m/s south. To find the course, we can utilize geometry. The point of Jeff's last speed concerning the x-pivot is given by:

θ = tan^-1(vj/4 m/s)

θ = 59.3° south of east

Accordingly, the last speed and heading of Jeff's amusement cart are 7.133 m/s at a point of 59.3° south of east.

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Answer:

Explanation:

His top speed is a blip that occurs for less than the full time he was out. Below is a graph showing what he did from 1 o'clock to 9. He was walking from 1 to the point where starts walking faster and then back down again to 2. The line at 2 is longer than the triangular shape that shows where he speeded up. Then he went back down to 2 and continued at that speed until 9.

Obviously he spent more time at 2 than he did at 4 and therefore his average speed will less than the 4 speed.

Remember that average speed = total distance / total time.

Answer:

2000

Explanation:

ddoes rest : add the components

Given the mass of the biker is m = 75.0 kg.

The constant velocity is v = 5.00 m/s.

The momentum of the biker is calculated by the formula.

Put the given values,

Thus, the biker's momentum is p = 375 kg m/s.

The time that it would have to take for the ball to have the vertical component is 0.8 seconds. Option A

We have the following details to solve the problem with.

initial velocity = 10 m / s

vertical velocity = -2 m/s

the angle is 37 degrees

we have to solve for Vyi

= 10 sin 37

= 10 * 0.60

= 6.01

We have to solve for t1. This is the time that it would take to get to the maximum height

t1 = Vy1 / g

= 6.01 / 9.81

= 0.61 seconds

Next we have to solve for t2

the distance is given as -2m / s

t2 = 2 / 9.81

= 0.20

Then the total time T = t1 + t2

= 0.61 + 0.20

= 0.81 seconds

T ~ 0.8 seconds

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To calculate the density, specific weight, and specific gravity of the oil in the cylindrical can, we'll use the following formulas:

Density (ρ) = Mass (m) / Volume (V)

Specific weight (γ) = Weight (W) / Volume (V)

Specific gravity (SG) = Density of substance / Density of reference substance

1. Density (ρ) = Mass (m) / Volume (V)

ρ = \(2.5 kg / 0.001419 ^3\)

ρ ≈ 1760.07 kg/m³

Therefore, the density of the oil is approximately 1760.07 kg/m³.

2. Specific weight (γ) = Weight (W) / Volume (V)

Weight (W) = Mass (m) × Acceleration due to gravity (g)

W = 2.5 kg × 9.8 m/s²

W ≈ 24.5 N

γ = \(24.5 N / 0.001419 m^3\)

γ ≈ 17248.54 N/m³

Therefore, the specific weight of the oil is approximately 17248.54 N/m³.

3. Specific gravity (SG) = Density of substance / Density of reference substance

In this case, the reference substance is usually water with a density of 1000 kg/m³.

SG = \(1760.07 kg/m^3 / 1000 kg/m^3\)

SG ≈ 1.76

Therefore, the specific gravity of the oil is approximately 1.76.

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Answer: 1h

Explanation:

The total work done by the compressor motor in the refrigerator is 8 Joules.

You placed your lunch leftovers in the refrigerator, and it needs to remove 4 joules (J) of thermal energy from the lunch to cool it to the inside temperature.

Simultaneously, the refrigerator produces 4 J of thermal energy that it expels into the kitchen. To determine the total work done by the compressor motor in the refrigerator, follow these steps:

Step 1: Understand the energy conservation principle.

The refrigerator works based on the principle of energy conservation. The energy that is removed from your lunch is not destroyed but transferred to another form, which is the thermal energy expelled into the kitchen.

Step 2: Calculate the total energy.
Since the refrigerator removes 4 J of thermal energy from your lunch and generates 4 J of thermal energy expelled into the kitchen, the total energy involved is the sum of these two values.

Total Energy = Energy removed from lunch + Energy expelled into the kitchen

Total Energy = 4 J + 4 J

Total Energy = 8 J

Step 3: Determine the work done by the compressor motor.
The work done by the compressor motor is equal to the total energy involved in the process, as there are no thermal losses due to friction in the motor.

Total Work Done = Total Energy

Total Work Done = 8 J

So, the total work done by the compressor motor in the refrigerator is 8 Joules.

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Organic foods refer to agricultural products that are grown and processed using natural methods, without the use of synthetic chemicals such as pesticides, fertilizers, or genetically modified organisms (GMOs).

Organic farming practices focus on using renewable resources and conserving soil and water to produce healthy and sustainable crops. Organic foods are produced according to strict government standards and regulations, which require that the food be grown and processed without the use of synthetic chemicals or genetically modified ingredients.

Organic foods may also be produced using sustainable farming practices that promote the health of the soil, water, and ecosystem. The use of synthetic chemicals in conventional farming has raised concerns about the safety of the food and the long-term impact on the environment.

Organic foods are considered to be healthier and safer for consumption, and they are often more expensive due to the higher costs associated with organic farming practices.

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When a cold air mass and a warm air mass meet but are at a standstill, the boundary is called a stationary front. This is a boundary between two air masses, one of which is warmer and the other of which is colder.

When they meet, they cannot mix because of their differences in temperature and density. As a result, they remain stagnant and stationary. The cold front is a front formed when a cold air mass displaces a warm air mass, and the warm front is a front formed when a warm air mass displaces a cold air mass.

However, a stationary front is formed when neither air mass advances. A stationary front is identified by the blue triangles and red half-circles that alternate on opposite sides of a line on a weather map. A stationary front produces cloudy skies and moderate rainfall or snowfall.

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Answer:

An object in motion stays in motion unless acted upon an outside force and  an object at rest stays at rest unless acted upon by an outside force.

Explanation:

Answer:

3 every second

Explanation:

The gravitational force exerted by the first lead ball on the second lead ball is slightly greater than the force exerted by the second lead ball on the first lead ball.  

The gravitational force exerted by an object on another object is given by the formula:

\(F = G * (m1 * m2) / r^2\)

where F is the gravitational force, G is the gravitational constant (approximately \(6.67 x 10^-11 N m^2 kg^-2)\), m1 and m2 are the masses of the two objects, and r is the distance between their centers.

In this case, the mass of the lead ball is m1 = 10.0 kg and the mass of the second lead ball is m2 = 110 g. The distance between their centers is r = 13.0 cm. Therefore, the gravitational force exerted by the first lead ball on the second lead ball is:

\(F1 = G * (10.0 kg * 110 g) / (13.0 cm)^2 = 1.13 x 10^-6 N\)

The gravitational force exerted by the second lead ball on the first lead ball is:

\(F2 = G * (110 g * 10.0 kg) / (13.0 cm)^2 = 1.25 x 10^-6 N\)

Therefore, the gravitational force exerted by the first lead ball on the second lead ball is slightly greater than the force exerted by the second lead ball on the first lead ball.  

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The "price" that you have to pay for this help is by covering more distance

when using it.

Wheel and axle is a type of lever which has three properties present and

they include

It helps to reduce the force needed to do work and makes it easier thereby

saving strength and resources. Work done is the product of force and

distance traveled.

Since force is reduced in this type of lever then more distance has to be

covered for work to be done efficiently.

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Answer:

The magnitude of the surface charge density on either plate is approximately 5.41 × 10⁻⁸ C/(m²)

Explanation:

The magnitude of the charge on each of the conducting plates = Equal

The orientation of the charges on each plate = Opposite charges

The magnitude of the point charge placed between the plates = +3.60 nC

The force acting on the point charge, q = 22.0 μN

Therefore, we have;

F = E × q

E = F/q = 22.0 μN/+3.60nC = 6,111.1111 V/m

We have;

\(E = \dfrac{\rho }{\epsilon_0}\)

Where;

ρ = The surface charge density

ε₀ = Absolute permittivity ≈ 8.85 × 10⁻¹² C²/(N·m²)

Therefore, we have;

ρ = E × ε₀ = 6,111.1111 V/m × 8.85 × 10⁻¹² C²/(N·m²) = 5.40833332 × 10⁻⁸ C/(m²)

∴ The magnitude of the surface charge density on either plate, ρ ≈ 5.41 × 10⁻⁸ C/(m²).

speed is 275 feet per second 275×60 = 16500 ft. 16500×Sin15° = 4270.51 ft (app.)

answer is 4270.51

How do you determine an airplane's speed?

the Mach Number.

Formula:

Mach Number = Sound Speed / Aircraft Speed (dependent on altitude)

Example:

The speed of sound at 30,000 feet is equal to 589.4 knots as the aircraft flies. There are 489.3 knots of airspeed.

Calculate: 0.83 Mach = 489.3/589.5.

How is the distance climbed determined?

We can determine the horizontal distance we will cover throughout the ascent given that we know how long it will take:

Ground speed multiplied by climbing time equals horizontal distance.

Using the previous formulas:

rise in altitude = 4000 - 1000 = 3000 ft.

3000 divided by 600 equals 5 minutes for the ascent.

10 NM is the horizontal distance at 120 * 5/60.

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The energy is directly proportional to the capacitance of the capacitor, accurately describes the energy stored on a parallel plate capacitor.

What is capacitor?

C) The energy is directly proportional to the capacitance of the capacitor.

The energy stored on a parallel plate capacitor is given by the formula:

E = 1/2 * C * V^2

where E is the energy stored, C is the capacitance of the capacitor, and V is the potential difference across the capacitor.

This formula shows that the energy stored on a parallel plate capacitor is directly proportional to the capacitance of the capacitor. Therefore, option C accurately describes the energy stored on a parallel plate capacitor.

Option A is incorrect because the energy stored is directly proportional to the potential difference across the capacitor, not inversely proportional to the charge stored.

Option B is incorrect because although the energy stored is related to the potential difference across the capacitor, it is not directly proportional to it.

Option F is also incorrect because the energy stored is proportional to the square of the potential difference across the capacitor, not the square of the charge stored.

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Because of the earth's large mass and solid structure, the skier moves but the earth does not.

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False

The Pressure Gradient Force (PGF) is the force that drives air from areas of high pressure to areas of low pressure. In both a trough and a ridge, the PGF is the same.

However, the winds will not be the same in both features.  

In a trough, the winds tend to move towards the center of the trough, where the air is rising, and this causes convergence and lifting. This upward motion causes a decrease in pressure, leading to a steeper pressure gradient, which means stronger winds. On the other hand, in a ridge, the winds move away from the center of the ridge, where the air is sinking, and this causes divergence and sinking. This sinking motion causes an increase in pressure, leading to a weaker pressure gradient and lighter winds.  

Therefore, assuming the same PGF, the trough will have the faster winds compared to the ridge.

Answer:

Digital signals are a more reliable form of transmitting information because an error in the amplitude or frequency value would have to be very large in order to cause a jump to a different value. Signals are composed of infinite possible values. Signals are composed of only two possible values: 0 or 1.

Explanation:

Hence, 150x would be the greatest achievable particle magnification for this telescope.

It is the product of the focal length of the telescope and the focal length of the eyepiece. The highest usable magnification of a telescope is 50 times its aperture in inches as a general rule (or twice its aperture in millimeters).

The maximum practical magnification of a telescope is determined by several factors,

Using this rule, the maximum practical magnification for a 3-inch telescope with a focal length of 1000 mm would be approximately:

50 x 3 =

150x

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Answer:

please give me brainlist and follow

Explanation:

The good news is that anyone can learn this ability, blind or sighted. Lore says that echolocation requires probably as much commitment as developing expert long cane skills. Lore acknowledges that, while there are many people who have some basic echolocating skills, there are only a few who really master this ability.

B: q magnet or a magnetic field