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docker41 [41]
3 years ago
15

The acceleration due to gravity on the Moon's surface is

Physics
1 answer:
Molodets [167]3 years ago
7 0

Answer:

50 lb

Explanation:

Given,

The weight of astronaut's life support backpack on Earth (w) = 300 lb

Acceleration due to gravity on Earth (g) = 9.8 m/s²

Acceleration due to gravity on Moon = g'

g'=\frac{g}{6}

We know that weight of an object on Earth is,

w = m\times g

m = \frac{w}{g}

Similarly, weight on Moon will be

w' = m\times g'

w' = \frac{w}{g}\times\frac{g}{6}

w' = \frac{300}{6}

w' = 50

Thus the astronaut's life support backpack will weigh 50 lb on Moon.

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An underground cannon launches a cannonball from ground level at a 35 degree angle. the cannonball is shot with an initial veloc
user100 [1]

Answer:

Time = 1.75[s]; Distance traveled = 21.5 [m]; Max height = 15 [m]

Explanation:

First, we have to break down the velocity vector into the X & y components.

(v_{x})_{0} = 15 * cos( 35)= 12.28[m/s]\\(v_{y})_{0} = 15 * sin( 35)= 8.6[m/s]\\\\

To find the time t that lasts the ball of cannon in the air we must use the following equation of kinematics, in this equation the value of y is equal to zero because it will be proposed that the ball lands at the same level that was fired.

y=(v_{y} )_{0}-\frac{1}{2}*g*t^{2}   \\where:\\g=9.81[m/s^2]\\t = time[s]\\y=0[m]

0=8.6*t-\frac{1}{2}*9.81*t^{2}  \\4.905*t^{2}=8.6*t\\ t=1.75[s]

In order to find the distance traveled horizontally from the cannonball, we must use the speed kinematics equation in the X coordinate.

x = (v_{x})_{0}  *t\\x=12.28*1.75\\x=21.5 [m]

In order to find the last value, we must bear in mind that when the cannonball reaches the maximum height, the velocity in the component y is equal to zero, and we can find the value of and with the following kinematic equation

y = (v_{y})_{0} *t+\frac{1}{2} *g*(t)^{2} \\y = 0*t+\frac{1}{2} *9.81*(1.75)^{2}\\ y=15 [m]

6 0
3 years ago
4
telo118 [61]
Ik what it is hit me up for it
5 0
3 years ago
PLS THIS IS DUE IN 2 MINUTES
luda_lava [24]

Answer:

The toy car

Explanation:

the real car is parked so yeah but maybe in some way technically the real car has more "momentum"

7 0
3 years ago
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Scilla [17]

Answer: 20

Explanation: cause

8 0
3 years ago
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What is the volume of a storage tank which will hold 3200kg of petrol?
otez555 [7]

Answer:

The volume of 3200 kg of petrol is 4 m^3.

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3 years ago
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