PHYSICS MIDDLE SCHOOL

The Earth's axis of rotation is tilted. Because of this, the amount of sunlight an area on the planet receives each day variesdepending on the time of year. These variations result in four distinct seasons.
The diagram below shows the Earth at one particular point in its yearly revolution around the Sun.
Image courtesy of NASA
When the Earth is in the position shown above, the Northern Hemisphere experiences the start of
hemisphere is tilted
the Sun
because that

Answers

Answer 1

Answer:

Answer:

the answer is the one that is tilted away from the sun because that is winter

Explanation:

i hope that i helped

Related Questions

How are both radio waves and microwaves used for methods of communication?
Instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp directly to the ground. What is the amount of potential energy remaining after the ball lands on the ground?
A 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is it’s kinetic energy (KE) when it lands?
A Walkman uses a standard 1.5 volt battery. How much resistance is in the circuit if it uses a current of 0.01 A
A frog leaping upward off his lily pad instead of continuing on in a straight line . Which law is it ?

Are the Sun's rays like mechanical or electromagnetic waves

Answers

If the sun generates any mechanical waves, none of them
have ever reached us, because only electromagnetic waves
can travel through empty space.

They are electromagnetic waves.

What makes the planets gravity?

Answers

The presence of mass makes gravity. Doesn't matter whether it's a planet, a black hole, a puppy, or a speck of dust.

Which has more Potential Energy a car parked on the top of the hill,a person on the top of the same hill sitting down eating a sandwich, or a man running fast at the bottom of the same hill?

Answers

As long as you're talking about gravitational potential energy the car at the top of the hill is correct. If you're talking about chemical potential energy, it would depend on how much gas is in the tank and what the contents of the sandwich were.

A car parked in top of the hill I hope this helps

I traveled 6.00 km to school in 0.250 hours . What was my average speed

Answers

Answer: 6.67 m/s

Explanation:

Recall that average speed is the total distance covered by a moving body divided by the total time taken. The SI unit is metres per second.

i.e Average speed = distance/time taken

Given that:

Distance covered = 6.00 km

Convert kilometers to meters

If 1 km = 1000 m

6.00 km = (6.00 x 1000) = 6000m

Time taken to school = 0.250 hours

Convert time in hours to seconds

If 1 hour = 60 minutes & 1 minute = 60 seconds

Then, 0.250 hours = (0.250 x 60 x 60)

= 900 seconds

Average speed = ?

Average speed = 6000m/900s

= 6.67 m/s

Thus, your average speed to school is 6.67 m/s

A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 19.0 kg, and the loaded sled with its rider has a mass of 210 kg. (a) Calculate the acceleration of the dogs starting from rest if each dog exerts an average force of 185 N backward on the snow. (b) Calculate the force in the coupling between the dogs and the sled.

Answers

The acceleration of the dogs as they pull the sled on the snow is $\boxed{4.09\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{{{\text{s}}^{\text{2}}}}}}\right.\kern-\nulldelimiterspace}{{{\text{s}}^{\text{2}}}}}}$ .

The force experienced by the sled due to the dogs is $\boxed{859\,{\text{N}}}$ .

Further Explanation:

As the dogs collectively full the sled on the wet snow surface, the sled will experience a net force due to all the dogs acting on it.

Part (a):

The net force applied by the 8 dogs on the sled is:

$\begin{aligned}{F_{{\text{net}}}}&=8*F\n&=8*185\n&=1480\,{\text{N}}\n\end{aligned}$

The net mass of the dog and the sled combined is:

$\begin{aligned}M&=\left({8*{m_d}}\right)+{m_s}\n&=\left({8*19}\right)+210\n&=362\,{\text{kg}}\n\end{aligned}$

The net acceleration of the dogs and the sled combined is:

$a=\frac{{{F_(net)}}}{M}$

Substitute the values of net force and mass in above expression.

$\begin{aligned}a&=\frac{{1480}}{{362}}\n&=4.088\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{{{\text{s}}^{\text{2}}}}}}\right.\kern-\nulldelimiterspace}{{{\text{s}}^{\text{2}}}}}\n&\approx4.09\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{{{\text{s}}^{\text{2}}}}}}\right.\kern-\nulldelimiterspace}{{{\text{s}}^{\text{2}}}}}\n\end{aligned}$

Thus, the acceleration of the dogs as they pull the sled on the snow is $\boxed{4.09\,{{\text{m}}\mathord{\left/{\vphantom {{\text{m}}{{{\text{s}}^{\text{2}}}}}}\right.\kern-\nulldelimiterspace}{{{\text{s}}^{\text{2}}}}}}$ .

Part (b):

Since the sled is moving with an acceleration of $4.09\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{{{\text{s}}^{\text{2}}}}}}\right.\kern-\nulldelimiterspace}{{{\text{s}}^{\text{2}}}}}$ , the net force experienced by the sled due to the pull of the dogs is:

${F_(sled)}={m_s}* a$

Substitute the values in above expression:

$\begin{aligned}{F_(sled)}&=210*4.09\n&=858.9\,{\text{N}}\n&\approx{\text{859}}\,{\text{N}}\n\end{aligned}$

Thus, the force experienced by the sled due to the dogs is $\boxed{859\,{\text{N}}}$ .

Learn More:

1. A 30.0-kg box is being pulled across a carpeted floor by a horizontal force of 230 N brainly.com/question/7031524

2. A horizontal rope is tied to a 50 kg box brainly.com/question/2416204

3. Why is it important to define a frame of reference brainly.com/question/526888

Answer Details:

Grade: High School

Subject: Physics

Chapter: Newton’s law of Motion

Keywords:

Team of eight dogs, waxed wood runners, loaded sled, with its rider, acceleration, average force 185 N, coupling between dog and sled, average masses of 19 kg each.

Can black holes merge

Answers

It is possible for two black holes to collide. Once they come so close that they cannot escape each other's gravity, they will mergeto become one bigger black whole.

Other Questions

An 100W light bulb is on 6 hours work out the energy (kWh) used and the cost of it (1kWh = £0.1359) with working out please

What are three methods of heat transfer and what are some examples

The curved movement of air or water is the result of which of these?Select one: a. winds spinning off the equator b. the rotation of Earth on its axis c. the different air movements north and south of the equator d. the friction that slows down winds near Earth’s surface

20 POINTS + Brainliest Answer included! Why are we, as humans, unable to see ultraviolet light? 5-10 sentence paragraph please!