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anyanavicka [17]
3 years ago
6

An energy resource that can be replaced in a reasonable short period of time is call an

Physics
2 answers:
Semenov [28]3 years ago
6 0
A Renewable resource
Andrei [34K]3 years ago
3 0
Hey! Your answer is A renewable source. 
•••Reason:A renewable resource<span> is a </span>resource<span> which is replaced naturally and can be used again. </span>
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Bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car B (209 kg) moving -1.72 m/s. What is the veloc
Nuetrik [128]

The velocity of B after elastic collision is 3.45m/s

This type of collision is an elastic collision and we can use a formula to solve this problem.

<h3>Elastic Collision</h3>

v_2 = \frac{2m_1u_1}{m_1+m_2} - \frac{m_1 - m_2}{m_1 + m_2}u_2

The data given are;

  • m1 = 281kg
  • u1 = 2.82m/s
  • m2 = 209kg
  • u2 = -1.72m/s
  • v1 = ?

Let's substitute the values into the equation.

v_1 = \frac{2*281*2.82}{281+209} -\frac{281-209}{281+209}(-1.72)\\v_1 = 3.45m/s

From the calculation above, the final velocity of the car B after elastic collision is 3.45m/s.

Learn more about elastic collision here;

brainly.com/question/7694106

4 0
2 years ago
What is the function of a heart rate monitor?
DanielleElmas [232]

Answer:

O- to track how fast a heart beats

Explanation:

8 0
3 years ago
When two forces or more forces act on an object, the forces are
sashaice [31]
The forces are net forces. I think this is correct.
5 0
3 years ago
A 3500 kg truck is parked on a 7.0∘ slope. How big is the friction force on the truck?
Arada [10]

Answer:

4180 N

Explanation:

In order to keep the truck balanced and stationary, the force of friction on the truck must be equal to the component of the weight of the truck acting parallel to the slope.

The component of the weight of the truck acting parallel to the slope is:

mg sin \theta

where

m = 3500 kg is the mass of the truck

g = 9.8 m/s^2 is the acceleration of gravity

\theta=7.0^{\circ} is the angle of the slope

Therefore, the force of friction must be equal to

F=(3500)(9.8)(sin 7.0^{\circ})=4180 N

6 0
3 years ago
Read 2 more answers
You measure the power delivered by a battery to be 5.83 W when it is connected in series with two equal resistors. How much powe
BabaBlast [244]

Answer:

P = 23.32 W

Explanation:

In series  

equivalent Resistance

R(eq)=R+R=2R

In parallel equivalent resistance

R(eq) = R*R/(R+R) =R/2

since.

power

P=V² / R

in series

⇒V = √(P*R)

=√(5.83*2R )

=√(11.66R)

in parallel

P = V² / R(eq)

=(√(11.66R)²) / (R/2)

P=11.66 * R * 2/R

P = 23.32 W

6 0
3 years ago
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