1 year ago

Which planet in our solar system, discovered in 1781, was named after the greek god of the sky?.

Physics

1 answer:

Anon25 [30]1 year ago

3 0

Answer:

i think the planet is Uranus

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Qué fuerza neta actúa sobre una caja que se desliza cuando ejerces sobre ella una fuerza de 110 N y la fricción entre la caja y

neonofarm [45]

Answer:

if this is translated ill answer it

Explanation:

sorry i cant reed this language

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2 years ago

Scientists are studying a group of living cells under a microscope. They write down notes about the size, shape, and color of th

Lilit [14]

Answer:

Explanation:

descriptive, because scientists are writing down the observations but not making comparisons.

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2 years ago

A 7750 kg space probe, moving nose-first toward Jupiter at 179 m/s relative to the Sun, fires its rocket engine, ejecting 72.0 k

Reika [66]

Answer:

179.47m/s

Explanation:

Using the law of conservation of momentum

m1u1 + m2u2 = (m1+m2)v

m1 and m2 are the masses

u1 and u2 are the initial velocities

v is the final velocity

Substitute

7750(179)+72(230) = (7750+72)v

1,387,250+16560 = 7822v

1,403,810 = 7822v

v = 1,403,810/7822

v= 179.47m/s

Hence the final velocity of the probe is 179.47m/s

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2 years ago

Friction provides the force needed for a car to travel around a flat, circular race track. What is the maximum speed at which a

ad-work [718]

Answer:

Maximum speed of the car is 17.37 m/s.

Explanation:

Given that,

Radius of the circular track, r = 79 m

The coefficient of friction, $\mu=0.39$

To find,

The maximum speed of car.

Solution,

Let v is the maximum speed of the car at which it can safely travel. It can be calculated by balancing the centripetal force and the gravitational force acting on it as :

$v=\sqrt{\mu rg}$

$v=\sqrt{0.39\times 79\times 9.8}$

v = 17.37 m/s

So, the maximum speed of the car is 17.37 m/s.

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2 years ago

When light is incident normally on the interface between two transparent optical media, the intensity of the reflected light is

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i need to ask sum so oycixgixigdtdidit

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2 years ago