All categories

3 years ago

In a transfer of energy, there is no change in the energy's, what?

Physics

1 answer:

frutty [35]3 years ago

7 0

I think it is there is no change in the energy's sunlight

You might be interested in

The heliocentric system gained support when Galileo observed that _____.

lianna [129]

Venus goes through phases similar to those of earths moon.

4 0

3 years ago

As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. You find a

Lorico [155]

Answer:

Acceleration of the bags is 0.861 m/s²

Explanation:

Given:

Mass of the rock, m = 22.5 kg = mass of the food

Slope, Θ = 55.5°

Now, from the figure, we have

T - mgsinΘ = ma ...................(1)

'a' is the acceleration of the mass

where T is the tension

also for the second mass, we have

mg - T = ma

now substituting the value of T from the equation (1) we get

mg - (ma + mgsinΘ) = ma

mg(1 - sinΘ) = (m + m)a

a = $\frac{mg(1 - sin\theta)}{2m}$

on substituting the values we get

a = $\frac{9.8\times (1 - sin55.5^o)}{2}$

a = 0.861 m/s²

Hence, the acceleration of the bags is 0.861 m/s²

7 0

3 years ago

What is the Potential energy of a magnetic generator

sergiy2304 [10]

Well potential energy is energy possessed by an object of by the position it's in. For example when you hold back a bow and arrow, but before you shoot it you are containing energy by holding the arrow back. So when you start the magnetic generator (pull or turn to start it) before using it for its purpose that is potential energy. I hope this helps.

8 0

4 years ago

I need help. which interaction does not take place due to field forces

Advocard [28]

Answer:

Explanation:

Answer D. Interaction between a pen and paper while you write

7 0

3 years ago

What constant acceleration in si units must a car have to go from zero to 60 mph in 10s. what fraction of g is this?

Sophie [7]

The acceleration of the car in SI units is 2.68m/s².

The acceleration is 0.27 times the acceleration due to gravity g.

Convert the speed in mph into m/s.

1 mile = 1609 m and 1h = 3600 s.

Therefore,

$v=(\frac{60 miles}{1 h} )(\frac{1609 m}{1 mile} )(\frac{1h}{3600s)} =26.82m/s$

Acceleration is the rate of change of velocity. The car starts from rest , its initial velocity u = 0 and accelerates to a velocity v of 26.82 m/s in 10 s.

Use these values in the equation and calculate the acceleration.

$a=\frac{v-u}{t} \\ =\frac{(26.82 m/s)-(0m/s)}{10s} \\ =2.682 m/s^2$

Thus the car accelerates at a rate of 2.68 m/s².

The acceleration due to gravity g on Earth has a value 9.81 m/s².

Find the ratio $\frac{a}{g}$

$\frac{a}{g} =\frac{2.682m/s^2}{9.81m/s^2} \\ =0.27
a=0.27g$

The car's acceleration is 0.27 times the value of g.

3 0

3 years ago