All categories

3 years ago

Which represents the net force

Physics

1 answer:

ipn [44]3 years ago

4 0

Answer:

The net force is 500N downwards

Explanation:

When Haley is trying to pull an object upward. The below forces are acting on the object.

Fp = 5500N

Fg = 6000N

because the force of gravity is more than the force of the pull.

Fnet = Fg - Fp = 6000N - 5500N = 500N

And, the direction of the resultant force is the direction of the larger force.

You might be interested in

Bare free charges do not remain stationary when close together. To illustrate this, calculate the acceleration of two isolated p

Natali5045456 [20]

Answer:

Acceleration, $a=3.6\times 10^{16}\ m/s^2$

Explanation:

It is given that, two isolated protons are separated by 2 nm. The force due to charged particles is given by :

$F_e=\dfrac{kq^2}{d^2}$

Force due to mass of proton, $F_g=ma$

$ma=\dfrac{kq^2}{d^2}$

$a=\dfrac{kq^2}{md^2}$

$a=\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{1.6\times 10^{-27}\times (2\times 10^{-9})^2}$

$a=3.6\times 10^{16}\ m/s^2$

So, the acceleration of two isolated protons is $3.6\times 10^{16}\ m/s^2$ . Hence, this is the required solution.

5 0

3 years ago

Which describes an object in projectile motion? Check all that apply.A.Gravity acts to pull the object downB.The object moves in

irina1246 [14]

Answer:

A.Gravity acts to pull the object down

D.The object’s inertia carries it forward.

E.The path of the object is curved.

Explanation:

The motion of a projectile consists of two independent motions:

- A uniform motion along the horizontal direction, with constant horizontal speed

- A vertical motion with constant acceleration of g = 9.8 m/s^2 downward (acceleration due to gravity), due to the presence of the force of gravity, so the vertical velocity changes (increases in the downward direction)

As a result, the combined motion of the projectile has a curved trajectory (parabolic, more specifically). So the following options are correct:

A.Gravity acts to pull the object down --> gravity acts along the vertical direction

D.The object’s inertia carries it forward. --> there are no forces acting along the horizontal direction (if we neglect air resistance), so the horizontal motion continues with constant speed

E.The path of the object is curved

3 0

4 years ago

Question 1 Multiple Choice Worth 2 points)

Vinil7 [7]

Answer:

2 atoms of oxygen in carbon dioxide

Explanation:

4 0

3 years ago

Ms. Mayo challenged her students to build a pendulum that would hit a block of wood and make it travel the farthest distance. Th

cestrela7 [59]

Answer:

<u>B) mass of pendulum bob</u>

4 0

3 years ago

What is the gravitational acceleration close to the surface of a planet with a mass of 9ME and radius of 3RE, where ME and RE ar

Papessa [141]

Answer:

9.78 m/s²

Explanation:

To solve this, we use the gravitational formula

g = GM/r², where

g = acceleration due to gravity

G = gravitational constant

M = mass of the planet

r = radius of the planet

From the question, we got that the mass of the planet is

M = 9ME, where ME = 5.95*10^24

M = 9 * 5.95*10^24

M = 5.355*10^25 kg

Also, the Radius of the planet, R = 3RE, where RE = 6.37*10^6

R = 3 * 6.37*10^6

R = 1.911*10^7 m

On applying the values of both R and M to the equation, we get

g = GM/r²

g = (6.67*10^-11 * 5.355*10^25) / (1.911*10^7)²

g = 3.57*10^15/3.65*10^14

g = 9.78 m/s²

Therefore, the acceleration due to gravity on the planet is 9.78 m/s²

Please vote brainliest if it helped you <3

5 0

3 years ago