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crimeas [40]
4 years ago
7

A tectonic plate near Niihau, an island in Hawaii, grows at an average rate of 11 cm/year. If the rate of plate expansion double

s, how many more centimeters will the plate grow in 3 years, compared to the present rate?
A) 30 cm more

B) 33 cm more

C) 66 cm more

D) 122 cm more
Physics
2 answers:
Nitella [24]4 years ago
6 0

Answer: Option C: 66 cm more

Explanation: We know that the actual rate is 11 cm per year, if this rate is doubled, then the new rate is 11*2 cm per year = 22cm per year.

Now, if in one year the plate grows 22 cm, then in 3 years the plate will grow 3 times 22 cm, this is:

22cm*3 = 66cm

Then the right answer is C, 66 cm more.

RideAnS [48]4 years ago
5 0

Answer:

C, 66

Explanation:

11*2 is 22 and 22*3 is 66

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If the pressure of a substance is increased during a boiling process, will the temperature also increase, or will it remain cons
7nadin3 [17]

Answer:

on increasing pressure, temperature will also increase.

Explanation:

Considering the ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Thus, at constant volume and number of moles, Pressure of the gas is directly proportional to the temperature of  the gas.

P ∝ T

Also,  

Also, using Gay-Lussac's law,

\frac {P_1}{T_1}=\frac {P_2}{T_2}

Thus, on increasing pressure, temperature will also increase.

4 0
3 years ago
In a shipping company distribution center, an open cart of mass 50.0 kg is rolling to the left at a speed of 5.00 m/s. Ignore fr
spin [16.1K]

Answer:

a) v_p=9.35m/s

Explanation:

From the question we are told that:

Open cart of mass   M_o=50.0 kg

Speed of cart   V=5.00m/s

Mass of package   M_p=15.0kg

Speed of package at end of chute V_c=3.00m/s

Angle of inclination   \angle =37

Distance of chute from bottom of cart   d_x=4.00m

a)

Generally the equation for work energy theory is mathematically given by

  \frac{1}{2}mu^2+mgh=\frac{1}{2}mv_p^2

Therefore

  \frac{1}{2}u^2+gh=\frac{1}{2}v_p^2

  v_p=\sqrt{2(\frac{1}{2}u^2+gh)}

  v_p=\sqrt{2(\frac{1}{2}v_c^2+gd_x)}

  v_p=\sqrt{2(\frac{1}{2}(3)^2+(9.8)(4))}

  v_p=9.35m/s

4 0
3 years ago
What about electrons allow them to be some of the fastest traveling subatomic particles?
rewona [7]
They're extremely small, occupying a very small volume, to the point where something like wind resistance that we think about with accelerating large objects like planes becomes completely irrelevant. A rogue electron can fly straight through most solid objects through the "empty space" between atoms. Their mass is also extremely small, 9.1*10⁻³¹ kg, making them relatively easy to accelerate to near light speeds (in comparison to other forms of matter) as it takes very little energy to set them into motion. Particle accelerators accelerate electrons to 99% of the speed of light in the real world every day.
7 0
4 years ago
A 10-cm-long archerfish begins such a leap with its body vertical in the water, using its fins and undulating its body to propel
siniylev [52]

Answer:

Explanation:

Velocity will be equal to the area under the curve of the acceleration-time plot.

v = ½(45)(0.075) = 1.6875

v = 1.7 m/s

h = (0² - 1.6875²) / (2(-9.8)) =  0.145288...

h = 15 cm

3 0
3 years ago
Which calculation is an example of velocity
Dmitry_Shevchenko [17]

Answer:

Yes

Explanation:

sun rays towards the earth is an example of velocity

3 0
3 years ago
Read 2 more answers
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