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3 years ago

Calculate the work done when a 10 N force pushes against a cart 4.0 m

Physics

2 answers:

juin [17]3 years ago

7 0

work = force x distance

10N and 4m gives 40 joules

Pavel [41]3 years ago

4 0

Hello There!

The answer is provided in the image attached.

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You walk from a position 33 m to a position 45 m in 3 seconds. What is your velocity?

enyata [817]

Velocity here =displacement /time take

v=45-33/3

v=12/3

v=4 m/s

6 0

4 years ago

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The smaller the mass of an object, the _____ its inertia

givi [52]

Answer:

The inertia of an object does not change. The only time the inertia would change is when the object changes mass. ... The acceleration of an object depends on the mass of the object as well as the force exerted. This means that if the mass is smaller, the acceleration will be greater.

Explanation:

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3 years ago

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A body moves in circle cover half of revolution in 10 sec its linear distance became 10m along circumference of circle than its

stiks02 [169]

The centripetal acceleration is $0.63 m/s^2$

Explanation:

The centripetal acceleration for an object in circular motion is given by

$a=\frac{v^2}{r}$

where

v is the linear speed

r is the radius of the circle

The body in the problem cover half of revolution in

t = 10 s

And the corresponding linear distance covered is

L = 10 m

which corresponds to half of the circumference, so

$L=2\pi r$

From this equation we find the radius of the circle:

$r=\frac{L}{2\pi}=\frac{10}{2\pi}=1.59 m$ [m]

While the linear speed is:

$v=\frac{L}{t}=\frac{10}{10}=1 m/s$

Therefore, the centripetal acceleration is

$a=\frac{1^2}{1.59}=0.63 m/s^2$

Learn more about circular motion:

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4 0

4 years ago

On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance Mass (u) 46Ti 77.600% 45.95263

allsm [11]

Answer: Average atomic mass of titanium on that planet is 46.52

Explanation:

Mass of isotope Ti-46 = 45.95263

% abundance of isotope Ti-46 = 77.600 % = $\frac{77.600}{100}=0.776$

Mass of isotope Ti- 48= 47.94795

% abundance of isotope Ti-48 = 16.100%= $\frac{16.100}{100}=0.161$

Mass of isotope Ti- 50 = 49.94479

% abundance of isotope Ti-50 = 6.300%= $\frac{6.300}{100}=0.063$

Formula used for average atomic mass of an element :

$\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})$

$Z=\sum[(45.95263 \times 0.776)+(47.94795 \times 0.161)+(49.94479\times 0.063)$

$Z=46.52$

Average atomic mass of titanium on that planet is 46.52

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3 years ago

How is gamma rays used to transfer energy?

expeople1 [14]

Gamma ray (also called gamma radiation), denoted by the lower-case Greek letter gamma, is penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei. It consists of photons in the highest observed range of photon energy.

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4 years ago