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olga55 [171]
2 years ago
7

HELP DUE 3 MINUTESsssss

Physics
2 answers:
Natalka [10]2 years ago
8 0

Answer:

pretty sure its d

Explanation:

bixtya [17]2 years ago
7 0
I think oxygen

I hope this helps
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Two people carry a heavy object by placing it on a board that is 2.2 meters long. One person lifts with a force of 750 N at one
stiks02 [169]

Answer:

This means that the center of mass is locates 0.72m from the 750N force

Explanation:

Since the board is 2.2m long, that will be the length of the board.

Let the center of mass of the body be hinged at the center using a knife edge as shown in the diagram attached.

Let x be the distance from the 750N force to the knife edge and the distance from the 360N force to the knife edge be 2.2-x

Using the principle of moment which states that the sum of clockwise moment is equal to the sum of anti clockwise moment.

Moment = force × perpendicular distance

For ACW moment;

Moment = 750×x = 750x

For the CW moment;

Moment = 360 × (2.2-x)

Moment = 792-360x

Equating ACW moment to the clockwise moment we have;

750x = 792-360x

750x+360x = 792

1110x = 792

x = 792/1110

x = 0.72m

This means that the center of mass is locates 0.72m from the 750N force

3 0
3 years ago
A force of 100 N is applied to a crate at an angle of 60° to the horizontal surface. The force causes the crate to move 2 m acro
MAVERICK [17]

Answer: B 100 J

Explanation: Pic Attached. Hope This Helps.

4 0
2 years ago
The velocity at the midway point of a ball able to reach a height y when thrown with velocity vi at the origin is:
Nutka1998 [239]
Assuming the ball follows classical 2D projectile motion (moves in a parabola) and that the height y = the maximum height the ball goes in the y direction (because this would be its midpoint), then the velocity at height y is equal to the initial x component of velocity. At the midpoint, the y component is zero, so the velocity only depends on the x component. Projectiles move at constant speed in the x direction, so X = Xo. As long as you know actual values for Vi and either the initial angle or one initial component, then you can solve for Xo using trigonometry. Xo is thus the velocity of the ball once it has reached its maximum height. 
7 0
3 years ago
Which statement is true of the particles that make up a substance? A.) Particles in a solid have more energy than particles in a
Black_prince [1.1K]

Answer:

i think the answer is "B"

Explanation:

the particles in a gas are more far apart and have more kinetic energy than liquid because they are more close together and have less kinetic energy than   gas.  

5 0
3 years ago
Please help help help help help ill give u the brainliest
MArishka [77]

impossible because fractional charges do not exust

3 0
2 years ago
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