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faltersainse [42]
3 years ago
8

1. Each of four boys were given

Physics
1 answer:
GalinKa [24]3 years ago
3 0

Answer:

the answer is A because

from tate 4 dozen is 48 and from joe the sixth multiple of eight is 48

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PART ONE
Lina20 [59]

Explanation:

Make a table, listing the x and y coordinates of each square's center of gravity and its mass.  Multiply the coordinates by the mass, add the results for each x and y, then divide by the total mass.

\left\begin{array}{ccccc}x&y&m&xm&ym\\\frac{a}{2} &\frac{a}{2} &10&5a&5a\\\frac{3a}{2}&\frac{a}{2}&70&105a&35a\\\frac{a}{2}&\frac{3a}{2}&80&40a&120a\\\frac{3a}{2}&\frac{3a}{2}&50&75a&75a\\&\sum&210&225a&235a\\&&Avg&\frac{15a}{14}&\frac{47a}{42}\end{array}\right

The x-coordinate of the center of gravity is 15/14 a.

The y-coordinate of the center of gravity is 47/42 a.

4 0
3 years ago
If an aircraft is loaded 90 pounds over maximum certificated gross weight and fuel (gasoline) is drained to bring the aircraft w
DedPeter [7]

Answer:

15 gallons.

Gallons = (Pounds) ÷ (Pounds ÷ Gallons)

Explanation:

5 0
3 years ago
In a warehouse, the workers sometimes slide boxes along the floor to move them. Two boxes were sliding toward each other and cra
san4es73 [151]

Answer:

Box 1 has more mass than box 2.

Explanation:

Box 1 has more mass than box 2, as it caused a greater affect in the change of speed of box 2. During a collision, the object with a lesser mass will be affected more, causing the velocity to change more. Because box one is greater than box  2, it caused a larger change in speed when they collided.

3 0
2 years ago
A truck accelerates uniformly from rest to a speed of 9.2m/s over a distance of 26.2 m. Determine the acceleration of the truck.
Anastasy [175]

Answer: 1.62m/s^2

Explanation: Using V^2=U^2+2a*s

V=9.2m/s, U=0, d = 26.2m

V^2=2a*s

a = V^2/2s

a = 9.2^2/2*26.2

a = 1.62m/s^2

5 0
3 years ago
Show that pair production is not possible without a neighbouring particle that takes part of the momentum.
egoroff_w [7]

Answer:

By conservation of momentum

Explanation:

By conservation of energy, the photon needs at least the same amount of energy as the energy rest mass of the electron and positron together, which is around 1,02 MeV. But, by conservation of momentum, the electron-positron do not have momentum, while the photon had some. This means that, in order to conserve momentum, we need another neighboring particle, normally an atomic nucleus,  to receive the photon's momentum.

3 0
3 years ago
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