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Natasha2012 [34]
4 years ago
15

Thomson is responsible for discovering that an atom containing _________

Physics
2 answers:
Doss [256]4 years ago
8 0

Thomson is responsible for discovering that an atom containing a nucleus.

I hope this helped :)

Soyunghoon Wang

EastWind [94]4 years ago
6 0

protons, neutrons, and electrons.  

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Design a tension member and slip-critical splice to carry a factored load of 500 kips. Please use a wide-flange section for the
Svetlanka [38]

Answer:

Kindly check the explanation section.

Explanation:

For the design we are asked for in this question/problem there is the need for us to calculate or determine the strength in fracture and that of the yield. Also, we need to calculate for the block shear strength.

From the question, we have that the factored load = 500kips. Also, note that the tension splice must not slip.

Also, the shear force are resisted by friction, that is to say shear resistance = 1.13 × Tb × Ns.

Assuming our db = 3/4 inches, then the slip critical resistance to shear service load = 18ksi(refer to AISC manual for the table).

If db = 7/8 inches, then the shear force resistance for n bolt = 10.2kips, n > 49.6.

The yielding strength = 0.9 × Aj × Fhb= 736 kips > 500

The fracture strength = .75 × Ah × Fhb = 309 kips.

The bearing strength of 7/8 inches bolt at the edge hole and other holes = 46 kips and 102 kips.

4 0
4 years ago
An 80kg person falls 60 m off of a waterfall. What is her GPE?
ElenaW [278]

Answer:

The gravitational potential energy of the man

= mass of the man(m) × gravitational acceleration(g) × height (h)

80 Kg × 9.8 m/s^2 × 60 m

80 × 9.8 x 60 ( kg ×m^2/s^2)

47040 Joules (ans)

Hope it helps

4 0
3 years ago
A ufo was detected on the radar flying 7400 miles in 3 min, what is the estimated speed per hour?
Ghella [55]
S=7400mi
t=3 min= 0.05h
v=7400mi/0.05h
v=148000mph
8 0
4 years ago
A box with a weight of 100 N rests on a horizontal floor. The coefficient of static friction is = 0,40 and the coefficient of ki
kompoz [17]
Weight=100N
SF=0.4
KF=0.3
Magnitude?
0.4 x 0.3 = 0.12
0.12x100=12
Ans =20
7 0
3 years ago
Dan is gliding on his skateboard at 2.00 m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at
miss Akunina [59]

Answer:

The velocity of Dan is 1.13 m/s.

Explanation:

Given that,

Initial velocity of skateboard and Dan = 2.00 m/s

Velocity of skateboard = 7.00 m/s

Mass of Dan m= 40.0 kg

Mass of skateboard M= 7.00 Kg

Suppose How fast is Dan going as his feet hit the ground?

We need to calculate the initial velocity of Dan

Using conservation of momentum

(m+M)v_{i}=mv_{f}+Mv_{f}

Put the value into the formula

(40.0+7.00)\times2.00=40.0\times v_{i}+7.00\times7.00

v_{i}=\dfrac{(40.0+7.00)\times2.00-7.00\times7.00}{40.0}

v_{i}=1.13\ m/s

Hence, The velocity of Dan is 1.13 m/s.

4 0
3 years ago
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