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2 years ago

1. How should you begin an exercise routine?

Physics

1 answer:

Arisa [49]2 years ago

6 0

Answer:

1. By streching

2. false

3. building stronger muscles and bones

4. riding your bike

Explanation:

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Planet that has an orbit that intersects the orbit of pluto

Scilla [17]

<h2>Answer: Neptune </h2>

The dwarf planet Pluton, <u>has the most eccentric orbit</u> (more elliptical and elongated) of all the planets, and as a consequence its orbit is "intersected" by the orbit of Neptune.

However, <u>despite this intersection, there is no collision risk between these two bodies</u>, since the orbit of Pluto is located in an orbital plane different from that of the other planets and therefore different from that of Neptune, its nearest neighbor. In addition, the orbit of Pluton is inclined $17\°$ on the the ecliptic plane (plane where the other planets move around the Sun).

8 0

3 years ago

A 1000kg car has a speed of 32m/s. If it takes 7s to stop the car, what is the impulse and the average force acting in the car

Alexus [3.1K]

1) Impulse: -32,000 kg m/s

The impulse acting on the car is equal to the change in momentum of the car:

$I= \Delta p = m (v-u)$

where in this problem we have

m = 1000 kg is the mass of the car

v = 0 m/s is the final velocity of the car

u = 32 m/s is the initial velocity of the car

Substituting values into the equation, we find

$I=(1000 kg)(0-32 m/s)=-32,000 kg m/s$

2) -4751 N

The impulse exerted on the car is also equal to the product between the average force, F, and the duration of the collision, t:

$I=Ft$

where in this situation we know

$I=-32,000 kg m/s$ is the impulse

t = 7 s is the duration of the collision

Solving the formula for F, we find the average force:

$F=\frac{I}{t}=\frac{-32,000 kg m/s}{7 s}=-4,571 N$

and the negative sign means that the force is in the opposite direction to the motion of the car.

5 0

3 years ago

George's highest target heart rate is 170. Yesterday on the stair stepper machine, his heart rate went to 172. What should he do

Kruka [31]

Take a break and catch his breath.

4 0

4 years ago

Read 2 more answers

A wave is incident on the surface of a mirror at an angle of 41° with the normal. What can you say about its angle of reflection

bazaltina [42]

Hold on 63 deg angle my friend

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4 years ago

Read 2 more answers

1. What are 3 main categories of waste and what is the largest contribution of municipal solid waste?

Tasya [4]

Organic materials continue to be the largest component of MSW. Paper and paperboard account for 27 percent and yard trimmings and food account for another 28 percent. Plastics comprise about 13 percent; metals make up 9 percent; and rubber, leather, and textiles account for 9 percent.

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3 years ago