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kvasek [131]
3 years ago
8

The Earth moving round the Sun in a circular orbit is acted upon by a

Physics
1 answer:
zalisa [80]3 years ago
3 0
No I do not agree. It is because work is done when force acting o a body displace or covers certain displacement in the direction of force applied .
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When two bodies are charged, the total charge before and after charging remains the same because of:
Oduvanchick [21]

Answer:

b. Conservation of charges

Explanation:

5 0
4 years ago
The mass of the sun is 2*10^30 kg and its radius is
Marta_Voda [28]

Explanation:

Distance d=1.5×108 km=1.5×1011 m

Mass of the sun, m=2×1030 kg

Mass of the earth, M=6×1024 kg

Force of gravitation, F=G×d2m×M

F=6.7×10−11×(1.5×1011)22×1030×6×1024=3.57×1022 N

4 0
3 years ago
A 11 547,83-N car is raised using a hydraulic lift, which
kati45 [8]

Answer:

75457.54816 N

Explanation:

F_1 = Initial force

F_2 = Weight of car = 11547.83 N

r_1 = Smaller radius = 5 cm

r_2 = Larger radius = 19.56 cm

From Pascal's law we have

\dfrac{F_1}{A_1}=\dfrac{F_2}{A_2}\\\Rightarrow F_1=F_2\dfrac{A_1}{A_2}\\\Rightarrow F_1=11547.83\dfrac{\pi r_1^2}{\pi r_2^2}\\\Rightarrow F_1=11547.83\dfrac{5^2}{19.56^2}\\\Rightarrow F_1=754.57548\ N

The force is 754.57548 N

3 0
4 years ago
Masses are stacked on top of the block until the top of the block is level with the waterline. This requires 20 g of mass. What
Kobotan [32]

Answer:

Mass of the wooden Block is 20g.

Explanation:

The buoyant force equation will be used here

Buoyant Force= ρ*g*1/2V Here density used is of water

m*g= ρ*g*1/2V

Simplifying the above equation

2m= ρ*V Eq-1

Also we know from the question that

ρ*V = m + 0.020 Eq-2 ( Density = (Mass+20g)/Volume )

Equating Eq-1 & Eq-2 we get

2m = m+0.020

m = 0.020kg

m = 20g

6 0
3 years ago
A meter-long ruler (meterstick) has a mass of 200 g giving it a weight of 1.96 N (nearly 1/2 pound). A pencil lying flat on a ta
kobusy [5.1K]

Answer:

a) Image attached

b) It is acting CW

c) τ = 0.294N.m

Explanation:

As you can see in the image, the ruler will rotate clockwise.

For the total torque: τ = -W*(0.5 - 0.35)   The distance used is from 35cm to 50cm

τ = -0.294N.m    The magnitude is therefore: 0.294N

7 0
4 years ago
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