PHYSICS
HIGH SCHOOL

B. 0.798 days

C. 1.26 days

D. 1.59 days

#please #asap

Answer:

The table shows information about the moons of mars what is the orbital period of Deimos 1.26 days.

What is time period?The amount of time a given astronomical object takes to complete one orbit around another object.

The table is missing, however I found the value of the orbital time period of Deimos on the web:

t = 30.4 hours

So, 30.4 hours. With a simple proportion we can convert it in days:

1 d: 24 h = x : 30.4 h

from which we find

x = 1.26 day

So, 1.26 days,

The table shows information about the moons of mars what is the orbital time period of Deimos 1.26 days.

To learn more about time refer to the link:

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Answer: The table is missing, however I found the value of the orbital period of Deimos on the web:

So, 30.4 hours. With a simple proportion we can convert it in days:

from which we find

So, 1.26 days, which corresponds to answer C).

So, 30.4 hours. With a simple proportion we can convert it in days:

from which we find

So, 1.26 days, which corresponds to answer C).

MIDDLE SCHOOL

which type of energy is the total energy of kinetic energy and potential energy in a system of object

Answer:total mechanical energy of the system to

Explanation:

Total mechanical energy=kinetic energy+potential energy

COLLEGE

The binding energy of electrons in a metal is 192 kj/mol . part a find the threshold frequency of the metal.

To calculate the threshold frequency of the metal we use the formula,

Also,

Here, E is the energy of electron per atom, h is plank constant.

Given, binding energy of electron or for one electron,, here N is the Avogadro constant and its value is , so and plank constant,

Substituting these values in above relation we get,

.

Thus, the threshold frequency of the metal is .

MIDDLE SCHOOL

Which has more energy for erosion? A. fast-moving stream B. slow-moving creek C. lake D. rainfall

A. A fast moving stream. Water has erode Earth for thousands of years. This was what caused the Grand Canyon. A faster ,owing stream would cause a faster erosion due to the speed and strength of the water itself.

the answer is A because its in 1.18 i took it

MIDDLE SCHOOL

_____ help by supporting the plant and holding the leaves up to the light.

The answer is the stem.

Answer:

The Answer is Stem :D

Explanation:

Because the stem is the part that holds the plant to the light.

Hope i helped

and again the answer is the stem.. :D

Have a great day!!

MIDDLE SCHOOL

A 110-pound person pulls herself up 4.0 feet. This took her 2.5 seconds. How much power was developed? 0.13 hp

0.32 hp

2.0 hp

3.1 hp

Answer: Power developed by her is 0.32 hp

Explanation:

Work done , W= Force(F) X Displacement (d) in the direction of force

Thus work done ,

Now 1.0 ft-lbf = 1.355 joules of energy

Therefore , work done, W= 440x 1.355 J = 596.2 J

Average Power ,

=>

We know 746 hp = 1.0 watts

=>

Thus average power developed by her is 0.32 hp

Answer:

0.32 Hp is the answer. right

HIGH SCHOOL

The drawing shows Robin Hood (mass = 91.1 kg) about to escape from a dangerous situation. With one hand, he is gripping the rope that holds up a chandelier (mass = 215.0 kg). When he cuts the rope where it is tied to the floor, the chandelier will fall, and he will be pulled up toward a balcony above. Ignore the friction between the rope and the beams over which it slides, and find (a) the acceleration with which Robin is pulled upward and (b) the tension in the rope while Robin escapes.

Answer:

Part a)

Part b)

Explanation:

Part a)

By force equation at position of Robinhood we will have

on the other side of the rope we will have

now by above two equations we have

plug in all data in the equation we will have

Part b)

From above equation we have

MIDDLE SCHOOL

During a collision, an 78-kilogram driver of a car moving at 32 meters per second is brought to rest by an inflating air bag in 1.4 seconds. The magnitude of the force exerted on the driver by the air bag is approximately N. I could really use the help thanks

Answer:

1800 N

Explanation:

There are two ways you can solve this. Newton's second law, or impulse.

Using Newton's second law:

F = ma

F = m Δv / Δt

F = (78 kg) (0 m/s − 32 m/s) / (1.4 s)

F ≈ -1800 N

Impulse = change in momentum

F Δt = m Δv

F (1.4 s) = (78 kg) (0 m/s − 32 m/s)

F ≈ -1800 N

The magnitude of the force (rounded to two significant figures) is 1800 N.

COLLEGE

Which body is in equilibrium? (1) a satellite orbiting Earth in a circular orbit

(2) a ball falling freely toward the surface of

Earth

(3) a car moving with a constant speed along a

straight, level road

(4) a projectile at the highest point in its trajectory

A car moving with a constant speed along a straight line road is the body in equilibrium.

• When the forces are balanced, then the object is considered to be in equilibrium.

• In equilibrium, the net force is zero and the acceleration of the body is also zero.

• The acceleration of 0 m/s does not signify that the body is at rest. An object is considered to be in equilibrium when it is either at rest and staying or rest, or is in motion, however, having same speed and direction.

• Therefore, when the car is moving with a similar speed along a straight line, it is considered to be having zero acceleration due to constant velocity and is moving in a straight line showing thus the car is in equilibrium.

Thus, a car moving with a constant speed along a straight level road is in equilibrium.

To know more about:

brainly.com/question/510400

Which body is in equilibrium?

(1) a satellite orbiting Earth in a circular orbit . No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. That's a centripetal force, and the satellite is experiencing centripetal acceleration.

(2) a ball falling freely toward the surface of Earth. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The ball is accelerating toward the ground.

(3) a car moving with a constant speed along a straight, level road. YES. We don't even need to analyze the forces, just look at the car. It's moving in a straight line, and its speed is not changing. The car's acceleration is zero ! That right there tells us that the NET force ... the sum of all forces acting on the car ... is zero. THAT's called 'equilibrium'.

(4) a projectile at the highest point in its trajectory. No. The forces on it are unbalanced. There's only one force acting on it ... the force of gravity, pulling it toward the center of the Earth. The projectile is accelerating toward the ground.

COLLEGE

The range of human hearing is roughly from twenty hertz to twentykilohertz. Based on these limits and a value of 305 m/s for the speed of sound, what are thelengths of the longest and shortest pipes (open at both ends andproducing sound at their fundamental frequencies) that you expectto find in a pipe organ? 1 ___________m (shortest pipe)

2 __________m (longest pipe)

Answer:

1.

2.

Explanation:

Given that

f₁= 20 Hz

f₂= 20 KHz

C= 305 m/s

For open pie organ :

Shortest length :

Longest length :