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Ierofanga [76]
3 years ago
13

T or F... All objects with mass (including you) warp space-time. * True False

Physics
2 answers:
lbvjy [14]3 years ago
7 0

Answer:

t

Explanation:

riadik2000 [5.3K]3 years ago
4 0
False because it’s is false
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A 3.10-mm-long, 430 kgkg steel beam extends horizontally from the point where it has been bolted to the framework of a new build
Alex17521 [72]

Answer:

Explanation:

Given that,

The length of the beam L = 3.10m

The mass of the steam beam m_1 = 430kg

The mass of worker m_2 = 69.0kg

The distance from  the fixed point to centre of gravity of beam = \frac{L}{2}

and our length of beam is 3.10m

so the distance from  the fixed point to centre of gravity of beam is

\frac{3.10}{2}=1.55m

Then the net torque is

=-W_sL'-W_wL\\\\=-(W_sL'+W_wL)

W_s is the weight of steel rod

=430\times9.8=4214N

W_w is the weight of the worker

=69\times9.8\\\\=676.2N

Torque can now be calculated

-(4214\times1.55+676.2\times3.9)Nm\\\\-(6531.7+2637.18)Nm\\\\-(9168.88)Nm

≅ 9169Nm

<h3>Therefore,the magnitude of the torque is 9169Nm</h3>

4 0
4 years ago
Zeb was moving his dresser. He pushed with 1000N and the resulting acceleration was 200m/s2. What was its mass?
PilotLPTM [1.2K]

Answer:

5

Explanation:

Formula for Mass (for this question)

mass=\frac{Force}{Acceleration}

mass= 1000N/200m^{2}=5

(pls do correct me if I have any mistakes it would rlly help others!)

7 0
2 years ago
(1 point) A frictionless spring with a 6-kg mass can be held stretched 0.2 meters beyond its natural length by a force of 50 new
guapka [62]

Answer:

x(t) = 0.077cos(6.455t)

Explanation:

If the spring can be stretched 0.2 m by a force of 50 N, then the spring constant is:

k = 50 / 0.2 = 250 N/m

The equation of simple harmonic motion is as the following:

x(t) = Acos(\omega t - \phi)

where \omega = \sqrt{k/m} = \sqrt{250 / 6} = 6.455

We also know that the initial velocity is 0.5 m/s, which is also the maximum speed at the equilibrium:

v_{max} = A\omega

A = v_{max}/\omega = 0.5 / 6.455 = 0.077 m

\phi = 0 is the initial phase

Therefore, the position of the mass after t seconds is

x(t) = 0.077cos(6.455t)

6 0
3 years ago
When do you produce more pressure on the ground...standing or laying down?
ycow [4]
When you are Standing you produce more pressure on the ground
7 0
3 years ago
SONAR stands for "sound navigation and ranging,” and it is used to map and explore the ocean floor.
lara31 [8.8K]
SONAR stands for "sound navigation and ranging,” and it is used to map and explore the ocean floor.
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3 years ago
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