All categories

3 years ago

Ian has a mass of 58.0!kilograms. What is his weight?

Physics

2 answers:

dalvyx [7]3 years ago

6 0

The answer is About 127.87 pounds

Westkost [7]3 years ago

4 0

In newtons, which is the unit of weight in physics, gravitational force (aka weight) is mg. M=58.0kg, so 58(9.81)=568.98 or approx. 569 newtons.

You might be interested in

How does the motion of particles in a gas change as the gas cools? (2 points) They move more slowly. They move in a more circula

Mazyrski [523]

they move more slowly

6 0

3 years ago

Consider a air-filled parallel-plate capacitor with plates of length 8 cm, width 5.52 cm, spaced a distance 1.99 cm apart. Now i

prohojiy [21]

Answer:

The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

Explanation:

Given that,

Length of plates = 8 cm

Width = 5.52 cm

Distance = 1.99 cm

Dielectric constant = 2.6

Length = 4.4 cm

Potential = 0.8 V

We need to calculate the initial capacitance

Using formula of capacitance

$C=\dfrac{\epsilon_{0}A}{d}$

Put the value into the formula

$C=\dfrac{8.85\times10^{-12}\times8\times5.52\times10^{-4}}{1.99\times10^{-2}}$

$C=1.96\times10^{-12}$

We need to calculate the final capacitance

Using formula of capacitance

$C'=\dfrac{\epsilon_{0}A_{1}}{d}+\dfrac{k\epsilon_{0}A_{2}}{d}$

Put the value into the formula

$C'=(\dfrac{8.85\times10^{-12}}{1.99\times10^{-2}})((4.4\times5.52)+(3.6\times5.52)2.6)\times10^{-4}$

$C'=3.37\times10^{-12}$

We need to calculate the ratio of the new potential energy to the potential energy before the insertion of the dielectric

Using formula of energy

$\dfrac{E}{E'}=\dfrac{\dfrac{1}{2}CV^2}{\dfrac{1}{2}C'V^2}$

Put the value into the formula

$\dfrac{E}{E'}=\dfrac{1.96\times10^{-12}}{3.37\times10^{-12}}$

$\dfrac{E}{E'}=0.58$

Hence, The ratio of the new potential energy to the potential energy before the insertion of the dielectric is 0.58

4 0

3 years ago

The weight of the space shuttle is about 4.5 million pounds. How many people would it take to move it? Answer in units of people

larisa [96]

Assuming that they are pulling the space shuttle straight up, and that this is done on the surface of the earth, where gravity is equal to 9.8 m/s^2. So taking the average pull force of a person to be 110 kg, then: 

110 kg/person * 9.8 m/s^2 = 1078 kg*m/s^2, or 1078 N/person (Newtons).

1 Newton is about 0.225 lb. So, 1078 N/person * 0.225 lb/N = 242.34 lb/person. 

So if the space shuttle weighs 4,500,000 lb, then it would take 4,500,000 lb / (242.34 lb/person) = 18,569 people.

Answer:

18,569 people

7 0

4 years ago

what is the numerical value in meters per second squared of the acceleration of an object experiencing true free fall

Rina8888 [55]

Answer:

9.8m/s²

Explanation:

An object experiening a free fall is simply under the influence of gravity.

When an object is influenced by gravity, the object falls with an acceleration known as acceleration due to gravity.

This acceleration known as acceleration due to gravity has a constant value of 9.8m/s².

8 0

3 years ago

A naughty girl throws a stone off a cliff with an initial horizontal speed of 5.4 m/s. The stone was in the air for 1.4 seconds

lisabon 2012 [21]

Answer:

9.6 m

Explanation:

h = y_0 t + 1/2 a t^2 = 1/2 (9.81) (1.4)^2 = 9.6 m.

3 0

4 years ago