The the x and y vector velocity components of a moving object are given as vy = 6.5 m/s and vx = –3.1 m/s. Calculate the resultant velocity and direction.

If wet suits allow a swimmer to swim faster. Research has measured the speed of swimmers both with and without a wetsuit.
The reason for this is that the wetsuit provides buoyancy and reduces drag, which allows the swimmer to maintain a more streamlined and efficient swimming position. Additionally, the neoprene material of the wetsuit can help to insulate the swimmer's body, which can increase their endurance and allow them to swim for longer periods of time.

Wet suits can indeed help a swimmer swim faster due to several factors, including buoyancy, reduced drag, and improved body position in the water. The increased buoyancy provided by the wet suit material lifts the swimmer higher in the water, which leads to a better body position and reduced water resistance. As a result, swimmers wearing wet suits may experience increased speed compared to swimming without a wetsuit.

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Answer:

7.5 meters per second

Hope This Helps!!

Answer:

it is 7.5 m\s

tell me if it's right

Answer:

What we see in the sky

Where are they in the general context of the overview of the Universe?

With the naked eye, the main astronomical objects we can see are the Sun, the Moon, the stars, and some of the planets

All of the stars we see are in the Milky Way galaxy, most of them relatively close to the Sun.

The stars we see in the sky come in a range of brightnesses, partly because stars come in different intrinsic brightnesses, and partly because some are closer than others.

When we look at an astronomical object ``by eye'', we can't tell just by looking how far away it is (because not all objects have the same intrinsic brightness). All we can see is what direction it is in.

As a result, when looking ``by eye'', the positions of stars on the sky are described by their direction only; you can imagine that the sky is a big sphere with astronomical objects located at different positions on it. This is called the celestial sphere

The positions of the stars can be described with a sort of astronomical longitude and latitude, called right ascension and declination.

Constellations are patterns of stars seen in the sky. However, although the stars in any constellation are all in the same general direction in the sky, the different stars in a constellation may be at very different distances from Earth, hence constellations may not be real associations of stars in space, just stars in the same general direction as seen from Earth.

Only the nearest galaxies are visible to the naked eye, as relatively faint smudges of light, although two of the very nearest galaxies, the Magellanic Clouds, are visible are moderately large clouds from the Southern hemisphere.

Motions in the sky

Hope this helps! :)

Explanation:

F=ma

500N=10×a

a=500÷10=50m/s²

PLEASE GIVE BRAINLIEST

Answer:

50m^2

Explanation:

acceleration=f/m

The spring with the higher stiffness is Spring 1. To determine this, we can look at the amount of work required to compress each spring by a given amount.

Compressing Spring 1 by 0.20m requires 150J of work, while compressing Spring 2 by 0.30m requires 210J of work. Since more work is required to compress Spring 2 by a smaller amount than it is to compress Spring 1, we can infer that Spring 1 is stiffer than Spring 2.

Stiffness is the amount of force required to move the spring a certain distance. The higher the stiffness, the more force is required to move the spring. Since it takes more force to compress Spring 1 than it does to compress Spring 2, Spring 1 is stiffer.

We can also look at the amount of work required to stretch each spring by a given amount. Stretching Spring 1 by 0.20m requires 150J of work, while stretching Spring 2 by 0.30m requires 210J of work. Again, since more work is required to stretch Spring 2 by a smaller amount than it is to stretch Spring 1, we can infer that Spring 1 is stiffer than Spring 2.

To summarize, Spring 1 is stiffer than Spring 2 since it requires more work to compress and stretch it by a given amount. Compressing Spring 1 by 0.20m requires 150J of work, while compressing Spring 2 by 0.30m requires 210J of work. Stretching Spring 1 by 0.20m requires 150J of work, while stretching Spring 2 by 0.30m requires 210J of work.

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The distance away in which brick 2 will land from brick 1, given that it was given an horizontal velocity of 10 m/s is 30 m

The following data were obtained from the question:

The horizontal distance of brick 2 from brick 1 can be obtained as illustrated below:

s = ut

Inputting the given parameters, we have:

= 10 × 3

= 30 m

Thus, we can conclude that the distance in which brick 2 will land frm brick 1 is  30 m

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Answer:

Surface tension is a fundamental property of the surface of liquid. Surface tension is responsible for the curvature of the surfaces of air and liquids. Surface tension is responsible for the ability of some solid objects to “float” on the surface of a liquid.

hope it helps

Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible.Surface tension is what allows any object that is denser than water to float on water

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a point on the circumference travel if the wheel is rotated through angles of 30 rad is 7.8m

4.9 x \(10^{7}\) revolutions  if the car travels 80000 km.

The Radius of the tyre = 0.26 m.

Perimeter = 2\(\pi r\) =0.52\(\pi\)m

When the circle is rotated through an 30rad angle, a point of its circumference travels a distance equal to an 30rad arc of this circle.

a full revolution is 2π rad, then an 30rad angle represents

30/2\(\pi\) =15/\(\pi\)

15/\(\pi\) * .52 \(\pi\) = 7.8 m

d =  7.8 m.

the car travels 80000 km

revolutions do the tires = 80000 * \(10^{3}\)/ 0.52\(\pi\)

=4.9 x \(10^{7}\) revolutions.

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Answer:

P = F / A    definition of pressure

P = 150 N / 5 m^2 = 30 N/m^2

The light energy absorbed by a surface depends on D. the tilt of the surface.

A beam of light becomes more spread out as E. the beam of light is spread out more.

Some energy is absorbed by Earth's surface when C. the beam of light reaches Earth.

Energy is less concentrated near

G. Earth's poles.

Less energy reaches the poles because

E. the beam of light is spread out more.

Earth is warmest at the equator because

F. energy is concentrated there.

Earth is coldest at the poles because

H. tilt is the greatest there.

Surface temperature depends on the amount of energy absorbed by the surface.

Less energy is received in regions where

E. the beam of light is spread out more.

Earth is warm at the equator and cold at

G. Earth's poles.

The Earth moves in a variety of ways through space. Its main motions are:

Rotation: The Earth rotates on its axis, an imaginary line passing through the North and South Poles. This motion causes day and night to occur, and it takes approximately 24 hours for the Earth to complete one rotation.

Revolution: The Earth revolves around the sun in an elliptical orbit, completing one revolution in approximately 365.25 days. This motion is responsible for the changing of the seasons and the length of the year.

Precession: The Earth's axis wobbles as it rotates, like a spinning top.

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Answer:

3.125×10²¹ N/C

Explanation:

Electric Field: This can be defined as the force experienced per unit charge. The S.I unit of electric Field is N/C

Applying,

E = F/q.................. Equation 1

Where E = Electric Field, F = Force experienced, q = Charge of an electron.

From the question,

Given: F = 500 N, q = 1.6×10⁻¹⁹ C

Substitute these values into equation 1

E = 500/(1.6×10⁻¹⁹)

E = 312.5×10¹⁹

E = 3.125×10²¹ N/C

The dimensions of the original rectangle are 18 units by 9 units.

Let the width of the original rectangle be w.

Since the length is twice the width, the length is 2w.

The new length is 2w + 5, and the new width is w - 3.

The new perimeter is 52, so:

2(2w + 5) + 2(w - 3) = 525w + 4 + 2w - 6

                                = 52

Simplifying and solving for w:

7w - 2 = 52w

          = 9

The width of the original rectangle is 9 units.

Since the length is twice the width, the length is 2(9) = 18 units.

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Answer: The type of force that can decrease the total momentum of this system is frictional force.

What is frictional force?

Frictional force is the force created when two surfaces come into contact with each other and slide against each other.

The frictional force is defined as the force created when two surfaces slide against each other.

Because frictional force occurs when two surfaces come into contact with each other, it is referred to as a contact force.

Friction can be classified into four types: static, sliding, rolling, and fluid friction. Solid surfaces experience static, sliding, and rolling friction.

The strongest friction is static friction, followed by sliding friction and finally rolling friction, which is the weakest. Fluid friction occurs in liquids or gases that are fluids.

Frictional force is a type of force that can reduce the total momentum of this system.

The force required to move the 90 Kg object at a constant speed of 8.10 m/s is 138.94 N

The force required to keep an object moving in a circle is called Centripetal force. This is defined according to the following equation:

F = mv²/r

With the above formula, we can obtain the force required to move the 90 Kg object. Details below:

F = mv²/r

F = (90 × 8.10²) / 42.5

F = (90 × 65.1) / 42.5

F = 5904.9 / 42.5

F = 138.94 N

Thus, the force required is 138.94 N

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frequency = velocity divided by wavelength

Ultraviolet (UV) radiation lies between wavelengths of about 400 nanometres and 10 nanometres, corresponding to frequencies of 7.5 × 1014 Hz to 3 × 1016 Hz.

Exactly two rays are required to locate the picture point of the a point object.

No image is created so when object is at the focal point.Lesson 5 has covered this topic, although the refracted beams do not converge or diverge.The light rays cannot create an image since they are moving parallel to one another after refractive error.

The picture is at infinity when the focal point is that object.The picture behind the mirror becomes virtual or upright as the object travels nearer the mirror within the focal point.

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Answer:

The tabletop is smooth so my finger is down it fast and easy. The fabric however slowed my finger down considerably, and it was harder for me to move my finger across it.

Explanation:

Hope this helps.

The rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction.

Pushing on the surface: You'll probably experience some resistance when you push the plastic or wood over the surface. When compared to other surfaces, this opposition is, nevertheless, somewhat minimal. Since the tabletop often has a smoother surface, there is less friction. This makes it possible for the object to slide with very little resistance.

Pushing on a Rug, Carpet, or Piece of Fabric: In comparison to a tabletop, a rug, carpet, or piece of fabric will likely present you with substantially more resistance to your push. Since these surfaces typically have more texture and roughness, friction is enhanced.

In conclusion, the rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction, whereas the opposition to motion on the tabletop is often lower due to the smoother surface and lower friction. The difference in friction force between smooth and rough surfaces explains why items slide more readily on smooth surfaces. Friction has a significant impact on how things move and interact with various surfaces in daily life.

Hence, the rug, carpet, or cloth offers more resistance to motion because of its rougher texture and higher friction.

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Answer:

a galaxy(?)

Explanation:

if 105 kj of energy is evolved when 78.1 g of sulfuric acid is formed, 132 kJ/mol is the molar enthalpy of synthesis.

\(NH^2 SO^4\) = \(\frac{78.1g}{98g/mol}\)

= 0.7969 mol.

molar enthalpy= \(\frac{105KJ}{0.7969 mol}\)

=  132 kJ/mol

The standard molar enthalpy of conformation, Δ f H ° m, corresponds to the enthalpy of response for the conformation of one operative of a emulsion from its native rudiments in their standard countries. It's generally given for the common reference temperature298.15 K( or 25 °C).

How do you calculate molar enthalpy?

Molar enthalpy = DH/n. n = number of moles of reactant. So we convert the carefully measured mass in to moles by dividing by molar mass. C = concentration in “M” = moles/L.

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Answer:

3

Explanation:

m.a=load÷effort

thus 150N÷50N=3

KE = 1000 J

Math

Pre-Algebra

Order of Operations: BPEMDAS

Physics

Energy

Kinetic Energy Formula: \(\displaystyle KE = \frac{1}{2}mv^2\)

Step 1: Define

m = 20 kg

v = 10 m/s

Step 2: Find KE

The problem states that a wheel is initially at rest, with an angular acceleration of 5 rad/s2. This means that the wheel starts to move from rest and gains speed at a rate of 5 rad/s2.

Using the formula:
ωf = ωi + αt

where:
- ωf is the final angular speed
- ωi is the initial angular speed (which is zero in this case)
- α is the angular acceleration (which is given as 5 rad/s2)
- t is the time (which is given as 5 seconds)

Plugging in the values:

ωf = 0 + (5 rad/s2) x (5 s)
ωf = 25 rad/s
Therefore, after 5 seconds, the angular speed of the wheel is 25 rad/s.

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Answer:

White

Explanation:

Red comes from the lowest energy range of and blue from the highest.

Answer:

608

Explanation:

Trust me

Answer:

608

Explanation:

I only answer after making sure the answer is correct and I get the green tick, not the red cross (Acellus)

The frequency that the bad guy hear is 12000 hz when the police car is moving with speed of 80m/s.

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Answer:

water

Explanation:

water is a compound