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NNADVOKAT [17]
3 years ago
5

A piece of wood that floats on water has a mass of 0.0175 kg. A lead weight is tied to the wood, and the apparent mass with the

wood in air and the lead weight submerged in water is 0.0765 kg. The apparent mass with the wood and the lead weight both submerged in water is 0.0452 kg. What is the specific gravity of the wood
Physics
1 answer:
crimeas [40]3 years ago
5 0

Answer:

Specific gravity is 0.56

Explanation:

We know that

mass of water displaced by the wood is, m1( apparent mass when wood in air and lead is submerged in water) - m2(the apparent mass when wood and lead both are submerged in water)

= 0.0765 - 0.0452 = 0.0313 Kg

So the specific gravity of the wood is, = mass of wood / mass of water displaced by the wood

= 0.0175/0.0313

=0.56

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URGENT!!! sorry this is my first time using brainly! but here is my question: Two ropes are attached to a wagon, one horizontal
Elan Coil [88]

The components of the net force on the cart is determined as 67.66 N.

<h3>Component of net force on the cart</h3>

The component of net force on the cart is determined by resolving the forces into x and y -components.

T1 = 30 N

T2 = 40 N

T1x = -30cos(0) = 30 N

T1y = 30sin(0) = 0

T2x = 40 x cos(30) = 34.64 N

T2y = 40 x sin(3) = 20 N

∑X = 30 N + 34.64 N = 64.64 N

∑Y = 0 + 20 N = 20 N

<h3>Resultant force</h3>

R = √(64.64² + 20²)

R = 67.66 N

Learn more about net force here: brainly.com/question/25239010

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3 0
2 years ago
Which scientist first suggested that the sun was at the center of the solar system?
pogonyaev

Answer:

Nicolaus Copernicus

Explanation:

With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the Sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.

8 0
3 years ago
Read 2 more answers
A truck hits a brick wall with a force of 120 N. The collision takes 2.0 seconds.
levacccp [35]
Impulse=force*time
impluse=120N*2.0s
impluse=240 Ns
7 0
4 years ago
PLZ HELP 20 POINTS!!!!!!!!!!!!!!! What atom # is 33?
alexdok [17]
Arsenic is the 33rd atom.
3 0
3 years ago
A 1500-kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2200-kg SUV traveling from ea
astra-53 [7]

Answer:

Velocity of Sedan = 21 m/s

Velocity of SUV = 12 m/s

Explanation:

As we know that deceleration due to friction force is given as

a = - \mu g

so we have

a = -(0.75)(9.81)

a = -7.36 m/s^2

now the two cars comes to rest at a point which is at position of 5.39 m West and 6.43 m South

so net displacement of the car is given as

d = \sqrt{5.39^2 + 6.43^2}

d = 8.39 m

now the velocity of the two cars just after the impact is given as

v^2 - v_i^2 = 2a d

0 - v_i^2 = 2(-7.36)(8.39)

v_i = 11.11 m/s

direction of the motion is given as

tan\theta = \frac{6.43}{5.39}

\theta = 50 degree South of West

now we can use momentum conservation as there is no external force on it

Momentum conservation in North to south direction

m_1 v_1 = (m_1 + m_2) vsin\theta

1500 v_1 = (1500 + 2200) (11.11) sin50

v_1 = 21 m/s

Similarly momentum conservation towards West direction

m_2 v_2 = (m_1 + m_2) vsin\theta

2200 v_2 = (1500 + 2200) (11.11) cos50

v_2 = 12 m/s

5 0
3 years ago
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