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scoundrel [369]
3 years ago
11

The average radius of Mars is 3,397 km. If Mars completes one rotation in 24.6 hours, what is the tangential speed of objects on

the planet’s surface? Round your answer to the nearest whole number. m/s
Physics
2 answers:
rewona [7]3 years ago
8 0

Answer:

241 m/s

Explanation:

Converting the last answer from kilometers/hour to meters/second

sammy [17]3 years ago
6 0

Answer: First, we determine the circumference of the Mars by the equation below.  

                                     C = 2πr

Substituting the known values,

                                     C = 2(π)(3,397 km) = 6794π km

To determine the tangential speed, we divide the circumference calculated above by the time it takes for Mars to complete one rotation and that is,

                   tangential speed = 6794π km / 24.6 hours = 867.64 km/h

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A block of mass 200 g is attached at the end of a massless spring of spring constant 50 N/m. The other end of the spring is atta
alexira [117]

Answer:

Explanation:

At the lowest point velocity is zero

loss of potential energy = gain of spring energy

= mgh = 1/2 k h² , h is vertical downward displacement , k is spring constant

2 mg = k h

h = 2mg / k

= (2 x .2 x 9.8) / 50

= .0784 m

P E ( gravitational) = - mgh

= - .2 x 9.8 x .0784

= -  .1536 J

spring PE = + .1536 J

Total PE = 0

b )

At mid point ie at h = .0392 m

gravitational PE = .2 X 9.8 X .0392

= - .0768 J

Elastic PE = 1/2 X 50 X .0392² = .0384 J

Total =  - .0768 J + .0384 J

= - .0384 J

At mid point total energy = 0

- .0384 + KE = 0

KE = .0384 J

c )

1/2 m v ² = .0384

v² = 2 x .0384 / .2

= .384

v = .6196 m / s

62 cm / s

6 0
3 years ago
The length of the adult mosquito is typically between 3.0 mm and 6.0 mm. The smallest known mosquitoes are around 2.5 mm, and th
FrozenT [24]

0.74in

Explanation:

Given parameters:

length range of adult mosquito = 3.0 - 6.0mm

Smallest mosquito = 2.5mm

Largest mosquito = 19mm

Average mass range = 3.0 - 5.0mg

Unknown:

Length of largest known mosquito in inches = ?

Solution;

The length is the longest dimension. It is how long a body is.

 The problem here is converting from mm to inches;

 

The length of the longest mosquito which is the largest is 19mm

 19mm to inches;

     1mm = 0.039inches

  19mm = 19mm x \frac{0.039in}{1mm} = 0.74in

learn more:

Scale brainly.com/question/570757

#learnwithBrainly

4 0
3 years ago
The electric field strength in the space between two closely spaced parallel disks is 1.0 105 N/C. This field is the result of t
balu736 [363]

Answer:

D=2.996\times 10^{-2} m

Explanation:

*Assume the parallel disks have equal diameters.

Given the electric strength as  1.0\times 10^5 N/C.  transferring 3.9\times 10^9 electrons, the disk's Area can be calculated using the formula:

E=\frac{\eta}{\epsilon_o}=\frac{Q}{A\epsilon_o}\\\\A=\frac{Q}{E\epsilon_o}\\\\=\frac{(3.9\times 10^9)\times (1.6\times10^{-19})}{(1.0\times 10^5 )\times (8.85\times10^{-12})}\\\\A=7.0508\times 10^{-4} \ m^2

#We now calculate the disks diameter:

A=\pi(D/2)^2\\\\2\sqrt{\frac{A}{\pi}}=D\\\\=2\sqrt{7.0508\times 10^{-4}/\pi}\\\\D=2.996\times 10^{-2} \ m

Hence, the diameter of the disks is D=2.996\times 10^{-2} m

8 0
4 years ago
What is the symbol which looks like fish means? GUYS HELPP
iren [92.7K]
<h2>The symbol is called an Alpha and means <em><u>"varies as"</u></em></h2>
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NEVERMIND ANSWER FOR SOME POINTS
saw5 [17]

Answer:

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Explanation:

5 0
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