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LuckyWell [14K]
3 years ago
14

What units would be used to describe the surface gravity of Mars?

Physics
1 answer:
Tom [10]3 years ago
8 0
AU- astronautical units
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A football player throws and accelerates a ball (m = 0.150 kg) from rest to a velocity of 50 m/s in 0.0121 sec. Determine the ac
Rasek [7]

Answer:

Acceleration=4m/s²

Force applied =619.8N

Explanation:

Using equation of motion

V=u+at we have: u=o, v=50m/s

50= 0 + a×0.0121

a = 50/0.0121

a= 4m/s²

Neglecting resistance forces

F= ma, where a = v-u/t

F=m×(v-u)/t

F= 0.150 ×(50-0)/0.0121

F=7.5/0.0121

F= 619.8N

5 0
3 years ago
Yasmin is testing an unknown solution to determine whether it is an acid or a base. She dips red litmus paper in the solution. I
victus00 [196]
The correct answer is D) It is not a base
7 0
3 years ago
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What is the meaning of inversely proportion​
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If two variables are inversely proportional, then when one increases, the other decreases, and vice versa. If a variable, y, is inversely proportional to a variable, x, then y = k/x, where k is the proportionality constant.
4 0
2 years ago
Read 2 more answers
Are the statements of the Flat Earth Society an example of science or pseudoscience?
Y_Kistochka [10]

Answer:

Pseudoscience

Explanation:

Pseudoscience is defined as set of ideas that present themselves as a science, but they do not fulfill the criteria to be called science. In the same way, in the middle of 20th century some people called earth is flat. They challenged the spherical shape of earth. But their hypothesis does not fulfill the criteria of science. Therefore, the statements of flat earth society are pseudoscience.

5 0
3 years ago
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You are holding the axle of a bicycle wheel with radius
erastova [34]

Answer:

The angular acceleration of the wheel is -6.54 rad/s²

Explanation:

We'll use the equations of motion for this.

w = 2πf

f = 75 rpm = 1.25 rps = 1.25 rev/s

w₀ = initial angular velocity = 2π × 1.25 = 7.85 rad/s

w = final angular velocity = 0 rad/s

t = 1.2 s

α = ?

w = w₀ + αt

0 = 7.85 + 1.2α

α = 7.85/1.2 = - 6.54 rad/s²

6 0
3 years ago
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