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3 years ago

2 cannons fire projectiles upwards with the same velocity. The

Physics

1 answer:

dybincka [34]3 years ago

3 0

Answer:

Explanation:

Given

Two projectile is fired vertically upward

One has 4 times the mass of other

When Projectile is fired their trajectory is independent of mass of object. Also if they launched with same speed then both achieved same maximum height in same time and will hit the ground at the same moment.

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Chemotherapy is used to treat

AleksandrR [38]

Answer:

Cervical cancer

Explanation:

Chemotherapy is a common treatment or most cancers

6 0

3 years ago

The cornea of the eye has a radius of curvature of approximately 0.40 cm , and the aqueous humor behind it has an index of refra

My name is Ann [436]

Answer:

0.64814 cm

Explanation:

$n_1$ = Refractive index of air = 1

$n_2$ = Refractive index of aqueous humor = 1.35

u = Object distance = $\infty$

v = Image distance = 25 mm

R = Radius of curvature of the cornea

Lens equation

$\dfrac{n_2-n_1}{R}=\dfrac{n_1}{u}+\dfrac{n_2}{v}\\\Rightarrow \dfrac{1.35-1}{R}=\dfrac{1}{\infty}+\dfrac{1.35}{2.5}\\\Rightarrow \dfrac{1.35-1}{R}=\dfrac{1.35}{2.5}\\\Rightarrow \dfrac{0.35}{R}=\dfrac{1.35}{2.5}\\\Rightarrow R=\dfrac{0.35\times 2.5}{1.35}\\\Rightarrow R=0.64814\ cm$

Radius of curvature of the cornea is 0.64814 cm

5 0

4 years ago

How can I connect projectile motion into inclines. plsss give me ideas

Alenkasestr [34]

Answer:

Explanation:

Initial launch angle, θ

Initial velocity, u.

Time of flight, T.

Acceleration, a.

Horizontal velocity, vx.

Vertical velocity, vy.

Displacement, d.

Maximum height, H.

4 0

4 years ago

While spinning in a centrifuge a 70.0 KG astronaut experiences an acceleration of 2.00g, or twice the acceleration due to gravit

alisha [4.7K]

Centripetal acceleration is the force acting on the body who's moving in a circular motion. It is still a force, which according to Newton's Second Law of Motion,

F = ma
F = (70 kg)(2)(9.81 m/s²)
F = 1373.4 N

<em>Thus, the answer is B.</em>

4 0

4 years ago

Look at the vector r plotted below

solong [7]

Answer: option A. r = 3x+2y

Explanation:

Vector r is plotted on the graph. On x-axis each small division corresponds to 1 unit. Similarly on y-axis, each small division corresponds to one unit.

The vector is the resultant of addition of its x and y components. we would draw perpendicular to the x-axis and y-axis from the head of vector r.

On x-axis, $r_x$ = +3 units

on y-axis, $r_y$ = +2 units

$r = r_x+r_y$

Hence, vector r can be written as: r = 3x + 2y . Correct option is A.

7 0

4 years ago