All categories

3 years ago

On Pluto, a baby would weigh 2.7 newtons. How much does this baby weigh on Earth? Give your answer in

1 answer:

Klio2033 [76]3 years ago

3 0

The acceleration of gravity on Pluto is 0.62 m/s² .
The acceleration of gravity on Earth is 9.81 m/s² .

Earth's gravity is (9.81/0.62) = 15.8 times as strong as Pluto's gravity.

So any object that weighs 2.7N on Pluto would weigh

(2.7N) x (15.8) = 42.7 N on Earth .

42.7 Newtons = about 9.6 pounds .

You might be interested in

PLEASE HELP! A river current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the curren

Usimov [2.4K]

add the river's velocity to the boat's velocity

5+ 5 = 10 km/h

Hope this helps!

5 0

4 years ago

The continuous flow of electrons is called ___________.

Brilliant_brown [7]

D. electrical current

4 0

3 years ago

Hot air balloon with a kinetic energy of 76550J and a mass of 1890kg.<br> what’s the velocity?

lukranit [14]

Answer:

$K.E = \frac{1}{2} m {v}^{2} \\ 76550 = \frac{1}{2} (1890) {v}^{2} \\ {v}^{2} = \frac{76550}{945} \\ = 81.005 \\ v = \sqrt{81.005} \\ v \approx \: 9m. {sec}^{ - 1}$

6 0

3 years ago

A janitor standing on the top floor of a building wishes to determine the depth of the elevator shaft. They drop a rock from res

Bumek [7]

Answer:

Part a)

H = 26.8 m

Part b)

error = 7.18 %

Explanation:

Part a)

As the stone is dropped from height H then time taken by it to hit the floor is given as

$t_1 = \sqrt{\frac{2H}{g}}$

now the sound will come back to the observer in the time

$t_2 = \frac{H}{v}$

so we will have

$t_1 + t_2 = 2.42$

$\sqrt{\frac{2H}{g}} + \frac{H}{v} = 2.42$

so we have

$\sqrt{\frac{2H}{9.81}} + \frac{H}{336} = 2.42$

solve above equation for H

$H = 26.8 m$

Part b)

If sound reflection part is ignored then in that case

$H = \frac{1}{2}gt^2$

$H = \frac{1}{2}(9.81)(2.42^2)$

$H = 28.7 m$

so here percentage error in height calculation is given as

$percentage = \frac{28.7 - 26.8}{26.8} \times 100$

$percentage = 7.18$

5 0

3 years ago

You will measure and record the time it takes the cart to travel certain distances, and then complete some calculations. In the

natka813 [3]

Answer:

Take the measurement of the distance (d) with a meter rule (in meters) and also measure the time (t) of the travel in seconds with a stopwatch.

question: What is the speed of the cart?

Explanation:

The speed of an object in motion is the distance covered by the object with respect to time, that is, the ratio of distance covered to the time taken to reach that distance.

Speed = distance / time

= d (in meters m) / t (in seconds s) = m/s

6 0

3 years ago