All categories

3 years ago

Which of the following is a renewable source of energy?

Physics

2 answers:

STatiana [176]3 years ago

7 0

Answer:

A. boi-gas

Explanation:

This may help u

Anika [276]3 years ago

3 0

A - bio fuel

Biofuels-by their very nature-are renewable over a period of less than one year for those based on crops, crop residues, and animal wastes or about 35 years for those based on forest residues, as compared to the hundreds of millions of years for fossil fuels.

You might be interested in

A 56.0 kg box hangs from a rope. what is the tension in the rope if: the box has vy = 5.30 m/s and is speeding up at 5.10 m/s2 ?

Minchanka [31]

T = tension force in the rope in upward direction

m = mass of the box attached at end of rope = 56 kg

W = weight of the box in downward direction due to gravity

a = acceleration of the box in upward direction = 5.10 m/s²

weight of the box is given as

W = mg

inserting the values

W = (56) (9.8)

W = 548.8 N

force equation for the motion of the box is given as

T - W = ma

inserting the values

T - 548.8 = (56) (5.10)

T = 834.4 N

5 0

3 years ago

URGENT PLEASE ANSWER: It takes about four minutes to bake a potato in a 1000 W microwave oven. How much energy is used?

mamaluj [8]

0.07 is the correct answer

6 0

3 years ago

Read 2 more answers

A dog is 60 m away while moving at a constant velocity of 10 m/s towards you. Where is the dog after 4 seconds?

joja [24]

The dog would be 20 m away from you.

4 0

3 years ago

Read 2 more answers

Water flows over a section of Niagara Falls at a rate of 2.2 × 106 kg/s and falls 65 m. What is the power wasted by the waterfal

Irina-Kira [14]

Answer:

P = 1401.4 x 10⁶ W

Explanation:

Given that

Water flow rate m = 2.2 x 10⁶ kg/s

Height ,h= 65 m

Acceleration due to gravity ,g= 9.8 m/s²

The power P is given as

P= m g h

P=Power

m=Water flow rate

h=height

Now by putting the values in the above equation

P = 2.2 x 10⁶ x 9.8 x 65 W

P = 1401.4 x 10⁶ W

Therefore the power wasted will be 1401.4 x 10⁶ W.

7 0

3 years ago

An overnight rainstorm has caused a major roadblock. Three massive rocks of mass m1=528 kg, m2=838 kg and m3=311 kg have blocked

JulsSmile [24]

Answer:

$FA=419,25N$

$F12=287,25N$

Explanation:

The bulldozer is moving the rocks as one system, the weigth for the complete system is:

$M=m1+m2+m3=1677kg$

From newton´s second law the acceleration can be related to the force by:

$FA=m*a=1677kg*0,250m/s^{2}=419,25N$

on the middle rock we have the force F12 from the first to the middle rock on the direction of movement and F32 from the las rock to the middle rock on the opposite direction of movement.

For the last rock to accelerate at the same rate it must be subjected to a force:

$F23=m3*a=311kg*0,250m/s^{2} =77,75N$

This equals the force F32 on the opposite direction. the resultant force on the middle rock to mantain this acceleration should be:

$F2=m2*a=838kg*0,250m/s^{2} =209,5N$

The sum of all the forces applied to the middle rock is:

$F2=F12-F32$

Solving for F12:

$F12=F2+F32=209,5N+77,75N=287,25N$

3 0

3 years ago