Bees obtain food they need from flowers. The flowers benefit by having their pollen dispersed by the bees as they travel from flower to flower. What type of symbiotic relationship is this?

Answers

Answer 1

Answer: the type of symbioric relationship that both the flower that the bees ins is : Mutualism In mutualism relationship, both organims from the relationship benefit from each other. In this case, the bees benefited by getting their source of food from the flowers, and the flowers benefited by the bees helping them to started their reproductive process

Answer 2

Answer:

Answer:

B - Mutualism

Explanation:

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An object of unknown mass is initially at rest and dropped from a height h. It reaches the ground with a velocity v sin θ / g 1. The same object is then raised again to the same height h but this time is thrown downward with velocity υ1 It now reaches the ground with a new velocity υ2. How is v2 related to v1?
Two students standing apart in a classroom have a gravitational force of attraction between them of 3.20 x 10-8 N. If one student has a mass of 50.0 kg and the other has a mass of 60.0 kg

A 1000-kg barge is being towed by means of two horizontal cables. One cable is pulling with a force of 80.0 N in a direction 30.0° west of north. In what direction should the second cable pull so that the barge will accelerate northward, if the force exerted by the cable is 120 N?

Answers

Answer:

θ = 19.47°

Explanation:

given,

mass of the barge = 1000 kg

force applied to pull = 80 N

direction = 30° west to north

force exerted by the cable = 120 N

direction = ?

first cable is pulling

in north direction = 80 cos ∅

= 80 cos 30°

= 69.28 N

in west direction = 80 sin ∅

= 80 sin 30°

= 40 N

the other cable will pull in the opposite direction of west

now,

$120 sin \theta = 40$

$sin \theta = (40)/(120)$

$\theta = sin^(-1){(1)/(3)}$

θ = 19.47°

the direction of the cable will be equal to θ = 19.47°

Which "sphere" does an astronomer most directly study?a. biosphere
b. exosphere
c. geosphere
d. cryosphere E. atmosphere F. hydrosphere

Answers

I would choose B. exosphere. Astronomers study outer space, planets and ect.

Answer:

exosphere

Explanation:

exosphere is space

astronomy is space

Which type of process happens without gain or loss of heat

Answers

Answer:

Adiabatic

Explanation:

Exotermic when you loss heat and enthotermic when you gain heat

The moon's mass is 7.35 × 1022 kg, and it moves around the earth approximately in a circle or radius 3.82 × 105 km. The time required for one revolution is 27.3 days. Calculate the centripetal force that must act on the moon. How does this compare to the gravitational force that the earth exerts on the moon at that same distance?

Answers

Explanation:

It is given that,

Mass of moon, $m=7.35* 10^(22)\ kg$

Radius of circle, $r=3.82* 10^(5)\ km=3.82* 10^(8)\ m$

The time required for one revolution is 27.3 days, t = 27.3 days

1 day = 86400 seconds

27.3 days = 2358720 seconds

Let v is the speed of moon around the circular path. It is given by :

$v=(2\pi r)/(T)$

$v=(2\pi * 3.82* 10^(8)\ m)/(2358720\ s)$

v = 1017.57 m/s

Let F is the centripetal force acting on the moon. It is given by :

$F=(mv^2)/(r)$

$F=(7.35* 10^(22)\ kg* (1017.57\ m)^2)/(3.82* 10^(8)\ m)$

$F=1.99* 10^(20)\ m/s^2$

So, the centripetal force that must act on the moon is $1.99* 10^(20)\ m/s^2$ . The gravitational force that the earth exerts on the moon at that same distance is also equal to $1.99* 10^(20)\ m/s^2$ . Hence, this is the required solution.

One major cause of floods isA. rapid spring snowmelt.
B. light rain over a large area.
C. a decrease in stream discharge.
D. increased capacity of stream channels.

Answers

The correct answer is A. rapid spring snowmelt. When the spring times come, sometimes there's a lot of warmth that suddenly comes, especially nowadays when there's things such as global warming. So the snow melts and large amounts of water can flood the fields that are often found at the foot of a mountain or similar things.

The answer to this question is A. Rapid Spring Snowmelt. You can find the answer in Pearson Earth Science Part 1 Textbook. "A heavy downpour or rapid snowmelt can flood canyons with a mixture of soil, rock, and water."

Hope this helps. Have a great day!

A wave a strong undertow. What kind of wave is it

Answers

Hey there!

Answer: A swell

A wave which creates a strong undertow is called a swell. These types of waves are also known as surface gravity waves.

Thank you!

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How does a pulley make it easier to load cargo onto a cargo ship?A. The pulley increases the force needed to lift the load by moving it over a longer distance. It also changes the direction of the force. As the input force is applied downward, the output force is exerted upward. B. The pulley reduces the force needed to lift the load by moving it over a longer distance. It also changes the direction of the force. As the input force is applied downward, the output force is exerted upward. C. The pulley increases the force needed to lift the load by moving it over a shorter distance. It also changes the direction of the force. As the input force is applied upward, the output force is exerted downward. D. The pulley reduces the force needed to lift the load by moving it over a shorter distance. It also changes the direction of the force. As the input force is applied upward, the output force is exerted downward.

When light bends as it enters a different medium the process is known as what?

Which statement is true for a sound wave entering an era of a warmer air ?A. The wave travels faster and with the same wavelength B. The wavelength travels at the same speed but with an increased wavelength C. The wave travels at the same speed and with the same wave length D. The wave travels slower and with an increased wavelength E. The wave travels faster and with an increased wavelength