How is the horizontal component of velocity for a projectile affected by the vertical component?

Answers

Answer 1

Answer: It isn't. The horizontal and vertical velocities are separate. You separate that velocity into the horizontal component which is constant, disregarding air resistance, and vertical velocity which is changed by the acceleration due to gravity. Make calculations separately because they do not influence each other.

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PLEASE HELP :/george walks to a friend's house. he walks 750 meters north, then realizes he walked too far he turns and walks 250 meters south. the entire walk takes him 50 seconds whats his distance and displacement?

As Derrick is driving around town, he stops at a red-light. When the light turns green, he takes off and travels212m in 6.7 seconds. What is his average acceleration?

Answers

Answer:

31.6

Explanation:

velocity÷ time

212 ÷ 6.7 = 31.6m/s

What happens to parallel light rays that strike a concave lens?

Answers

When parallel light rays comes across a concave lens, the rays are refracted outwards. Concave lenses are thinner in the middle part. Parallel light rays diverge and seems to appear from one point called the principal focus. The image formed is smaller.

Answer:

The light ray that pass through the lens diverge and is refracted outwards and never meets at a focal point.

Explanation:

Divergent lenses (also called concave lenses) are transparent bodies bounded by two refractory surfaces with one central axis in common. When a parallel light ray strikes a lens, it is refracted by changing its direction, this refraction in the divergent lens causes the rays to move away from the central axis, ie the ray of light passing through the lens diverges and is refracted outward. and is never at a focal point.

Which of the following happens in a heat pump?a. the compressor increases the pressure and temperature pf the refrigerant

b. the compressor blows cold refrigerant into the room

c none of the above

Answers

option c. none of the above

The heat pump is like an air conditioning unit. There is an air compressor inside it,the function is to convert power (using electric, diesel, gasoline) into potential energy stored in pressurized air (compressed air).By any means and methods, the prs

A man begins pushing a lwan mower across a lawn from a standing start. Which is true? A. The man is decreasing the kinetic energy of the lawn mower B. the man is increasing the kinetic energy of the lawn mower C. the kinetic energy of the lawn mower is not changing D. you cannot tell whether the kinetic energy of hte lawn mower is increasing or decreasing from the info given

Answers

Kinetic energy is energy in motion. With that in mind, at a stand still, an object has almost no kinetic energy. Since he is starting to push it, which is moving it, he is increasing the kinetic energy.

B

What is the magnitude of the electric field at a point 0.0075 m from a 0.0035 C charge?

Answers

In an electric field force,F= q₁q₂/4πε₀ r² (coulomb's law) as we know,F=qE E=F/q
E=q/4πε₀ r²
here,r= 0.0075 m
q= 0.0035 C
1/4πε₀ = 9×10⁹
E= 9×10⁹× 0.0035/(0.0075)²
=5.6 ×10¹¹ N/C

Answer:

5.6x1011 N

Explanation:

I just got the wrong answer so here's the right one

Four landing sites are proposed for a lander. Data about the sites are listed in the table.A 3 column table with 4 rows. The first column is labeled landing site with entries W, X, Y, Z. The second column is labeled height above surface in meters with entries 32, 16, 35, 12. The last column is labeled acceleration due to gravity in meters per second squared with entries 1.6, 3.7, 1.6, 3.7.
At which landing site would the lander have the greatest amount of gravitational potential energy?

A. W
B. X
C. Y
D. Z

Answers

Answer:

B. X.

Explanation:

To determine which landing site would have the greatest amount of gravitational potential energy, we need to consider the height above the surface and the acceleration due to gravity at each site.

Gravitational potential energy is given by the formula:

Gravitational potential energy = mass x acceleration due to gravity x height

In this case, the mass of the lander is not provided, but since it is the same for all the sites, we can ignore it for the purpose of comparison. Therefore, we only need to consider the acceleration due to gravity and the height above the surface.

Looking at the table, we can see that at site X, the height above the surface is 16 meters, and the acceleration due to gravity is 3.7 meters per second squared. This means that at site X, the lander would have the highest amount of gravitational potential energy compared to the other sites.

i hoped this helped ! ⚫w⚫

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