Many spacecraft have visited Mars over the years. Mars is smaller than the Earth and has correspondingly weaker surface gravity. On Mars, the free-fall acceleration is only _____.
a. 1 m/s^2
b. 2 m/s^2
c. 3.8 m/s^2
d. 9.8 m/s^2

The direction of the acceleration vector is towards the top right of the page, at a 90-degree angle to the velocity vector. The correct answer is (d) "the velocity is towards the right of the page and the acceleration is towards the top right of the page".

At the highest point of the circular path, the direction of the velocity vector is tangential to the circle and points to the right of the page, which is the direction of motion. The acceleration vector points towards the center of the circle, which is the direction of centripetal acceleration.

Since the car is moving at a constant speed, there is no component of acceleration in the tangential direction. The magnitude of the centripetal acceleration is given by the formula a = v^2/r, where v is the velocity and r is the radius of the circle.

Therefore, the direction of the acceleration vector is towards the top right of the page, at a 90-degree angle to the velocity vector.

To learn more about Vectors here:

brainly.com/question/29740341#

#SPJ11

Answer:2.86seconds

Explanation:

H=gt^2/2

t=2h/g

Just before the collision, the kinetic energy of both planets is zero.

To find the kinetic energy of each planet just before they collide, we can use the formula for kinetic energy:

K = (1/2) * m * v²

Where K is the kinetic energy, m is the mass of the planet, and v is the velocity of the planet.

First, we need to find the velocities of the planets. Since the planets collide, their final velocities will be the same. We can use the principle of conservation of momentum to find this common final velocity.

The conservation of momentum equation is given by:

m1 * v1initial + m2 * v2initial = (m1 + m2) * vfinal

Where m1 and m2 are the masses of the planets, v1initial and v2initial are their initial velocities, and vfinal is their final velocity.

Since the planets start from rest (v1initial = v2initial = 0), the equation simplifies to:

0 + 0 = (m1 + m2) * vfinal

Solving for vfinal:

vfinal = 0

Therefore, the final velocity of the planets just before they collide is zero.

Now we can calculate the kinetic energy of each planet:

For planet 1:

K1 = (1/2) * m1 * v1²

K1 = (1/2) * (2.20 * \(10^{24}\) kg) * (0 m/s)²

K1 = 0 J

For planet 2:

K2 = (1/2) * m2 * v2²

K2 = (1/2) * (7.00 * \(10^{24}\) kg) * (0 m/s)²

K2 = 0 J

Therefore, just before the collision, the kinetic energy of both planets is zero.

To know more about kinetic energy here

https://brainly.com/question/31968771

#SPJ4

C) negative . the static frictional force as the accelerating truck moves a distance .

Accelerating is an increase in the speed or rate of something over time. This can refer to a variety of contexts, from the physical realm of physics to the economic realm of business. In physics, acceleration is the rate of change of velocity, or the rate at which an object's speed or direction changes over time.

It is usually measured in meters per second squared (m/s2). In business, acceleration can refer to growth, such as an increase in sales or profits, or an increase in the speed at which a process or procedure is completed. In either case, acceleration means that an increase in speed or rate has been achieved.

To learn more about accelerating

https://brainly.com/question/1561090

#SPJ1

Its 30 kg cause I got 30 kg dude.

i’ve done it on paper.

Answer:

refers to the bending of light

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.

Despite being two distinct ideas, phenotype and genotype are tightly intertwined. The term "phenotype" describes the physical characteristics of an organism that result from the expression of a person's genes.

The phenotype of an individual is determined by genotype. While an organism's genotype refers to its genetic makeup, its phenotype describes how it looks on the outside. The visible manifestation of a person's genes is their phenotype. Therefore, even an organism belonging to the same species may vary due to a slight variation in their genotype. The primary distinction between the two is this.

Their genotype could be used to decipher the human genetic code. It chooses which features or qualities to display. Even organisms with the same genotype might have different appearances. Periodically, both behavior and appearance change. In contrast, even identical-looking species do not share the same genotype.

To know more about phenotype and genotype

https://brainly.com/question/26124553

#SPJ4

A double-concave lens has equal radii of curvature of 15.0 cm and an object is placed 10.0 cm from the lens forms a virtual image 5.00 cm from the lens thus the index of refraction of the lens material will be 1.5.


The double-concave lens has a negative focal length, as it diverges light rays. Using the lens equation, 1/f = (n-1) * (1/R1 - 1/R2), where f is the focal length, n is the index of refraction, and R1 and R2 are the radii of curvature, we can solve for n.
We know that R1 = R2 = 15.0 cm, and that the object distance (p) is 10.0 cm, and the image distance (q) is -5.00 cm (since the image is virtual). Plugging in these values, we get:
1/f = (n-1) * (1/R1 - 1/R2)
1/f = (n-1) * (1/15.0 - 1/15.0)
1/f = 0
f = infinity
Since the lens is diverging, the focal length is negative infinity. This means that the index of refraction must be 1.5, which is the index of refraction of most common lens materials, including glass and plastic.

Learn more about refraction here:

https://brainly.com/question/14760207

#SPJ11

If infrared radiation is released by the Earth and there is an increased level of carbon dioxide in the atmosphere, then it is absorbed and heats the atmosphere (option A).

Greenhouse gases such as carbon dioxide and methane are well known to increase global warming because they trap the radiation that otherwise will be dissipated from the atmosphere to space.

Therefore, with this data, we can see that greenhouse gases are associated with global warming and it is the reason for which the dramatic increase in carbon dioxide levels may be dangerous.

Learn more about greenhouse gases here:

https://brainly.com/question/20349818

#SPJ1

7.7µW/m^2 is  the intensity at a point that is at an angle of 2.06° from the center of the central fringe

Define  double-slit experiment

The double-slit experiment demonstrates the basic probabilistic structure of quantum mechanical processes while also showing that light and matter can exhibit traits of both classically defined waves and particles.

The power transferred per unit area is known as the intensity or flux of radiant energy, where the area is measured on a plane perpendicular to the direction of the energy's propagation.

I ⇒ 1/2*I1 *cos2.06

I1 ⇒ 33 *cos 2.06

I ⇒ 1/2 *33 *cos 2.06 ⇒7.7µW/m^2

To learn more about double-slit experiment,

https://brainly.com/question/29235908

#SPJ

Answer:

C.1 is a waxing gibbous and 5 is a waning crescent.

The light intensity from  largest to smallest ranking will be  :B > D > A=C > E. where the area is measured on the plane perpendicular to the direction .

In physics, the intensity is the amount of energy that is transmitted per unit area, and the area is measured on a plane perpendicular to the direction that the energy equation will propagate. I = P/ 4(d2), with P denoting power. Let power of 1 bulb equal = P where I = intensity, d = distance at which the intensity must be determined.

case A = I =  P / (1) (1) 1 = P case with 2 = P In the situation B = I = 2P/(0.5)2 = 8P C = I = 4P / (2) (2) ^2 = P case Case (1)2 = 3P: D = I = 3P E = I = 2P /(1.5) (1.5) ^2 = 0.8 P

B > D > A=C > E will be the order of light intensity, from greatest to least.

rank the light intensity, from largest to smallest, at the point p in the figures?

learn more about intensity  here:

https://brainly.com/question/13155277

#SPJ4

The resistance of the copper wire is 0.161 Ω. The resistance of a material depends on various factors, including its length, cross-sectional area, and temperature.

What is Resistance?

Resistance is a measure of how much a material opposes the flow of electric current. It is defined as the ratio of the voltage applied to a conductor to the current flowing through it, and is measured in ohms (Ω). Materials with high resistance are poor conductors of electricity, while materials with low resistance are good conductors.

We can use the formula for resistance of a wire:

R = (ρ * L) / A

where R is resistance, ρ is resistivity, L is length of the wire, and A is its cross-sectional area.

We know that the wires are identical, so they have the same length and cross-sectional area. Therefore, their resistances are proportional to their resistivities:

R_aluminum / R_copper = ρ_aluminum / ρ_copper

We can rearrange this to solve for the resistance of the copper wire:

R_copper = R_aluminum * ρ_copper / ρ_aluminum

Plugging in the given values, we get:

R_copper = 0.263 Ω * (1.72 x 10^-8 Ω·m) / (2.82 x 10^-8 Ω·m) = 0.161 Ω

Therefore, the resistance of the copper wire is 0.161 Ω.

Learn more about Resistance from given link

https://brainly.com/question/17563681

#SPJ1

Amplitude: 30 cm; wavelength 110cm.

Answer:

A. 420 J

Explanation:

Given the following data;

Mass = 30.45 g

Specific heat capacity = 4.18 J/g °C.

Temperature = 3.3°C

To find the quantity of heat;

Heat capacity is given by the formula;

\( Q = mct \)

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

t represents the temperature.

Substituting into the equation, we have;

\( Q = 30.45 * 4.18 * 3.3 \)

Q = 420.03 ≈ 420 Joules

Answer:

The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.

Answer:

Ok I’m not pretty sure but I think it’s C but look for more answers first before you put C  because I don’t want you to get it wrong. :)

Explanation:

Answer:

i think the answer is The nonmetal takes up more space.

Explanation:

i hope this helps

answer

is 1 kw is the answer

The statement which is false is as follows:

Thus, the correct option for this question is D.

Friction may be defined as a type of force that resists the sliding or rolling of one solid object over another through the surface that acts on it.

Friction is a force that takes place as the resistance of motion when one object rubs over another. Friction force always opposes the motion along with air resistance.

Friction can also be somehow reduced with the impact of lubrication over the rubbing surface. It is true that air resistance is greater the faster the object is traveling.

Air resistance does not depend on the blowing of the wind. It does not mean that if there is no wind blowing, the air resistance is negligible.

Therefore, the correct option for this question is D.

To learn more about Frictional force, refer to the link:

https://brainly.com/question/23161460

#SPJ6

The age of the bone is 45840 years.

We'll begin by calculating the number of half-lives that has elapsed.

Amount remaining (N) = 0.3125 g

Initial amount (N₀) = 80 g

N × 2ⁿ = N₀

0.3125 × 2ⁿ = 80

Divide both side by 0.3125

2ⁿ = 80 / 0.3125

2ⁿ = 256

2ⁿ = 2⁸

Thus, 8 half-lives has elapsed

Finally, we shall determine the age of the bone.

Half-life (t½) = 5730 years

Number of half-lives (n) = 8

t = n × t½

t = 8 × 5730

Therefore, the age of the bone is 45840 years.

Learn more on half-life: https://brainly.com/question/15900105

It will take time 1 hour 6 min approx before the two vessels meet.

Relative speed is said to be the speed of a moving body in relation to another moving or stationary body. When there are two bodies moving in the same direction, the relative speed is the difference of their speeds with respect to the ground. But when two bodies are moving in the opposite direction, the relative speed is the addition of their speeds with respect to the ground.

Relative speed = 15 + 53 Km/h

= 68 Km/ h

Distance to be covered = 75 Km

So, the time when two vessels will meet = distance/ speed

= (75/ 68 ) × 60 =66.17 min.

= 1 hour 6 min approx.

To know more about Relative speed here

brainly.com/question/16284701

#SPJ4

Answer:

pressure= 2000 Pa

Explanation:

pressure=  force/area

ρ=\(\frac{F}{A}\)

We don't have the force but we know that force and weight are the same things as they have the same unit.

weight= mass × gravitational force (gravitational force is constant at the value 10)

w= 2 × 10

w = 20N

So force= 20N

To find the area of the portion of the cube:

=  10 × 10

= 100 cm²

we should convert this to m²

100/10000

= 0.01 m²

ρ= \(\frac{20}{0.01}\)

ρ= 2000 Pa

Pressure= 2000 Pa

A collection of voltaic cells (or piles) is called a battery.

What are voltaic cells?

Voltaic cells are chemical cells that generate electricity.

A series of voltaic cells connected together in a steel container which produce current as a result of oxidation reduction reaction.

In a voltaic cell there are two compartments where oxidation and reduction occurs simultaneously to produce current.

In each compartment there is an electron. The positively charged electrode is cathode(reduction) and negatively charged in anode (oxidation).

In general, the steel container in which a redox reaction occurs inside a voltaic cell is called a battery.

If you need to learn more about voltaic cells click here:

https://brainly.com/question/3810653

#SPJ4

Answer:

c) The balls have the same velocity after the collision

Explanation:

In a perfectly inelastic collision between two balls, there is a loss in the maximum kinetic energy of the system and the two ball stick together, and thereby have the same velocity after the collision and also the coefficient of restitution of the two balls is also zero accompanied by a loss in the kinetic energy of the system

Therefore, the correct option is that both balls will have the same (equal) velocity after the collision.

The monochromatic laser light passing through two small slits with large spacing produces a bright fringe at the midpoint on a distant screen due to constructive interference, which occurs when the light from one slit travels exactly one wavelength farther than the light from the other slit, and both light waves reach the midpoint in phase.

The phenomenon described in your question is known as interference. When a laser beam passes through two small slits that are very close to each other, the light waves interfere with each other and create a pattern of bright and dark fringes on a distant screen. The bright fringe that is centered at the midpoint is caused by constructive interference, where the crests of the waves from one slit coincide with the crests of the waves from the other slit. This occurs because the distance traveled by the light from one slit to the midpoint is exactly one wavelength longer than the distance traveled by the light from the other slit.
It's important to note that for this phenomenon to occur, the slit spacing must be large compared to the distance to the screen, and the laser light must be monochromatic (meaning it contains only one wavelength). Additionally, the light waves must travel the same distance from each slit to the midpoint. These conditions are necessary for the waves to interfere constructively and create a visible interference pattern on the screen.

To know more about interference refer to

https://brainly.com/question/2166481

#SPJ11