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KIM [24]
3 years ago
11

The Planet Tatooine has 1/2 the gravitational field strength and 4 times the mass of the Earth. How does the radius of Tatooine

compare with the radius of Earth?
Physics
1 answer:
balandron [24]3 years ago
8 0

Answer:

r=2√2rp

Explanation:

khan

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If a resistor draws 1.2 x 10^-3 a of current from a 12 v battery, then what is the value of the resistor?
bixtya [17]
Value of resistor = (12V) /(1.2 x 10^-3A)=10000ohms=10k ohms
8 0
4 years ago
A golfer imparts a speed of 29.0 m/s to a ball, and it travels the maximum possible distance before landing on the green. the te
Roman55 [17]

Explanation:

It is given that,

Initial speed of a golfer, u = 29 m/s

If it travels the maximum possible distance before landing. It means that it is projected at an angle of 45 degrees.

(a) We need to find the time spent by the ball in the air. It can be calculated by using second equation of motion.

s=ut+\dfrac{1}{2}at^2

Here,

a = -g

s = 0 (it is displacement and it is equal to 0 as the ball lands on the green).

So,

0=29\sin(45)t-\dfrac{1}{2}\times 9.8t^2\ (\text{Initial vertical component of velocity is taken})\\\\-4.9t^2+29\times \dfrac{1}{\sqrt2}t=0\\\\-4.9t^2+20.5t=0\\\\t=0,4.184\ s

So, it will take 4.184 seconds in the air.

(b) let x is the longest hole in one that the golfer can make if the ball does not roll when it hits the green. It can be given by :

x=vt\cos\theta\\\\x=29\times 4.184\times \cos(45)\\\\x=85.79\ m

Hence, this is the required solution.

8 0
4 years ago
how much work did the movers do (horizontally) pushing a 41.0- kg crate 10.3 m across a rough floor without acceleration, if the
11111nata11111 [884]

W=2485.65 J ,work did the movers do friction force a 41.0- kg crate 10.3 m across a rough floor without acceleration

<h3>What is a basic friction force?</h3>

Two surfaces that come into contact and slide against one another produce a force known as frictional force. Several aspects that influence the frictional force include: The surface texture as well as the amount of force attracting them together have the most effects on these forces.

<h3>What outcomes does friction produce?</h3>

It generates heat, which is useful for warming our bodies or specific areas of any object. Power is also lost as a result. It makes noise during every operation. We are able to walk, run, dance, etc. due to friction.

To know  more about friction force visit:

brainly.com/question/1389727

#SPJ4

7 0
1 year ago
What is the density of a substance of volume 3 m3and mass 9 kg?
butalik [34]

Answer:

Density = 3 kg/m³

Explanation:

Given the following data;

Volume = 3m³

Mass = 9 kg

To find the density;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the formula;

Density = \frac{mass}{volume}

Substituting into the formula, we have;

Density = \frac{9}{3}

Density = 3 kg/m³

7 0
3 years ago
A 7 kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat’s gravitational potential energy relati
Natalija [7]
Gravitational potential energy stored in cat= mgh ( m= mass of cat, h = height of cat from ground) = 7x9.8x3 = 205.8 J
8 0
3 years ago
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