Anthony is standing on the top of a building 10 m high holding a 7 kg bowling ball. Mildred dug a 2-m-deep hole next to the base of the building. What is the gravitational potential energy of the bowling ball relative to the bottom of the hole? P.E = mgh

A. 137.2 J
B. 548.8 J
C. 686.0 J
D. 823.2 J

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

Which layer of the Sun appears pinkish-red during a solar eclipse?

Answers

Answer:

the answet is the 3 layer of the sun

Explanation:

isaw a solar eclipse and leanerd is

Answer:

Chromosphere

Explanation:

It is the second of the three main layers in the Sun's atmosphere and is roughly 3,000 to 5,000 kilmoeters deep.It's rosy red color is only apparent during eclipses.The chromosphere sits just above the photosphere and below the solar transtion region.

2. Which is a possible unit of mass?
gram
liter
meter

Answers

Answer:

Gram

Explanation:

Meter is a unit used to measure length and liter is used to measure liquids therefore using process of elimination the answer has to be gram

Determine What is the efficiency of a machine whose work output is 4 joules, and whose work input is 10 joules?

Answers

Answer:

The efficiency of the machine is 40 %.

Explanation:

We have,

Output work by the machine is 4 joules and the input work is 10 joules.

It is required to find the efficiency of a machine. The efficiency of a machine is given by the ratio of output work to the input work. It is given as :

[tex]\eta=\dfrac{4}{10}\times 100\\\\\eta=40\%[/tex]

So, the efficiency of the machine is 40 %.

A few Physics questions regarding circuits and electricity.

Answers

Answer:

7.series

Explanation:

in parallel is like if one bulb stops work all the others will stop too

in series it remains constant or it wont change throughout a series circuit

A book with a mass of 1.2 kg sits on a bookshelf. If it has a gravitational
potential energy of 50 J, how high is the shelf? The acceleration of gravity is
9.8 m/s2
A. 1.2 m
B. 4.3 m
C. 5.9
D. 2.7 m

Answers

I'm sorry, I just saw this. I hope I'm not too late.

GPE = mass * gravity * height

height = GPE/(mass * gravity)

height = 50/(1/2 * 9.8)

height = 10.2041 Meters

the upper body primal movement patterns are

Answers

Answer:

Bend to extend. Bending with a hips back movement, back straight, feet flat and forward. ...

Squat. This is a hips down motion. ...

Lunge. This is a long, linear stride, lowering your back knee to just above the ground, with a completely upright torso. ...

Rotate. ...

Push. ...

Pull. ...

Gait.

A tennis ball and a solid steel ball of the same diameter are dropped at the same time. Which ball has the greater amount of force acting on it?

Answers

The steel one.

The steel one has more force due to the weight and mass.

An object's mass is a crucial indicator of how much stuff it contains. The gravitational pull of an object is measured by its weight. It is influenced by the object's location in addition to its mass. As a result, weight is a measurement of force.

What ball has the greater amount of force acting on it?

The heavier (denser) object will fall quicker if two identically sized but made of different materials objects are present. This is because both objects will experience the same drag and buoyancy forces, but the heavier object will experience a stronger gravitational pull.

Things fall to the earth faster as a result of gravity. Acceleration is a modification of velocity, and velocity is a measurement of the direction and speed of motion. The longer an object is in free fall, the faster gravity makes it tumble toward the ground.

Therefore, solid steel ball have high mass and greater amount of force acting on it.

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In a science experiment showing the splitting of water into Oxygen and hydrogen, two inverted test tubes of water were placed over the site of the reaction. (see the pic) How can you tell which one was catching the oxygen and which one was catching the hydrogen?

The hydrogen is a positive ion and will be located close to the negative terminal of the battery.


The oxygen is a negative ion which will be located next to the negative terminal of the battery.


There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.


The hydrogen, being a smaller atom, will take up less space than the oxygen. It will push the water down less.

Answers

Answer:

There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.

Explanation:

Electrolysis refers to the decomposition of a solution (electrolyte) owing to the passage of direct current through the solution.

Water is decomposed into its constituents; hydrogen and oxygen by electrolysis. However, a battery is connected to drive the process and other electrolytes such as dilute acids are added to improve the conductivity of water.

In the electrolysis of water, two moles of hydrogen gas is produced for each mole of oxygen gas produced. Hence the ratio of hydrogen to oxygen gas produced is 2:1 by volume. This implies that the space occupied by oxygen is half the space occupied by hydrogen. The hydrogen will thus occupy more space, pushing the water much lower than oxygen.

which of the following describes glass?
A. a material that has a low resistance and allows charges to move freely
B. a material that has a high resistance and prevents charges from moving freely
C. a material that has a low resistance and prevents charges from moving freely
D. a material that has a high resistance and allows charges to move freely

Answers

Answer:b

Explanation:

If Earth was with no tilt, would we still have seasons at all? If so, how would they be different?

Answers

Answer:

If earth had no tilt, we would have no seasons.

Explanation:

As stated in the answer, if the earth had no tilt we wouldn't have seasons. The earth all around the globe would maintain the same temperature,

And due to the no tilt it would also change our orbit to a bit larger slant, in January when we are at our closest to the sun we WOULD have a mini summer. For the North and South Pole, they would remain cold.

What evidence (data) would support the claim that an increase inhuman population contributes to the emission of greenhouse gases?
A. greenhouse gas production has leveled off once the global population reached a certain number

B. amount of greenhouse gases produced varies with the level of development a country has reached

C. greenhouse gas emissions per individual humas has decreased over the past 30 years

D. 10 countries with the largest populations are the countries that produce the most greenhouse gases

Answers

Hey there!

The answer would be D. 10 countries with the largest populations are the countries that produce the most greenhouse gases.

This is the only statements that supports the idea of large populations affecting the emissions of greenhouse gases.

Hope this helps!

For any energy source including batteries, there will be conduction of electricity if there is a potential
difference
similarity

Answers

Answer:

Difference

Explanation:

The electricity conduction happens when there is a flow of current. The flow of current from one point to another can only occur if there is a potential difference.

If there is not potential difference between two points the current will not flow and thus electricity conduction will also be not possible. The current in the circuit will flow from higher potential point to lower potential point.

identify the correct order of increasing intermolecular force of attraction for the three most common states of matter.

A) liquid - solid - gas
B) Solid - liquid - gas
C) gas - liquid - solid
D) gas - solid - liquid

Answers

I believe it’s C) gas- liquid- solid

The correct order of increasing the intermolecular force of attraction for the three most common states of matter is C) gas - liquid - solid.

What is an intermolecular force in matter?

An intermolecular force is a force of attraction or repulsion that exists between molecules or atoms within a substance.

Here,
In the gaseous state, the intermolecular forces are weak, and the molecules are far apart and move freely in all directions. In the liquid state, the intermolecular forces are stronger, and the molecules are closer together, but still able to move past each other. In the solid state, the intermolecular forces are the strongest, and the molecules are tightly packed together in a fixed arrangement, which results in a definite shape and volume.

Therefore, the correct order of increasing the intermolecular force of attraction for the three most common states of matter is gas, liquid, and solid.

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Which image illustrates the bending of a wave around the edge of an
obstacle?

Answers

Answer:

Explanation:

It’s C


Which of the following provides the best summary of the process of natural
selection?

A. Population sizes increase with every generation.

B. Individuals pass on their best traits to their offspring.

C. Mutations help an individual survive and reproduce.

D. Well-adapted individuals survive and reproduce.

Answers

Answer:

B. Individuals pass on their best traits to their offspring.

Explanation:

because genes are always passed from parents to offspring.

The best summary of the process of natural selection is Individuals pass on their best traits to their offspring. Hence, the correct option is B.

What is the theory of Natural selection?

The theory of natural selection gives the mechanism of evolution. It defines the method of different survival and reproduction of individuals due to differences in phenotype.

The theory of natural selection was proposed by Charles Darwin as a way of adaptation and speciation. The variations occur in organisms by random mutations occurring in the genome of individual organisms and this change in mutations may inherit in offspring.

Organisms that are more adapted to the environment are more likely to survive and pass on the genes to future generations. This process cause changes to the generations and diverged over time.

The organisms produce more offspring that are able to survive in the environment. The four factors of natural selection are Variations, Inheritance, Selection, and time.

Thus, the best summary of the process of natural selection is individuals pass on their best traits to their offspring. Hence, the ideal solution is option B.

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4. Convert this distance( 9cm)into MILES, using the scale provided:
Answer:

Answers

0.000056 bc if you convert it it’s the answer I said

Due very soon! 100 points please answer for all three diagrams!
The woman supports a 100 N load with the friction free pulley system shown below. Fill in the spring scale readings that show how much force she must exert.

Answers

Answer:

1. 100N 2. 50N 3. 50N

Explanation:

The spring scale reading that shows how much force she must exert is 1. 100N 2. 50N 3. 50N.

What is the spring scale?

A simple and affordable way to determine mass is by using spring balances. The mass is suspended from the end of the spring, and the spring's deflection as a result of the mass's downward gravitational pull is measured in relation to a scale.

The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains."

One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

Therefore, her required force is indicated by the spring scale readings of 1. 100N, 2. 50N, and 3. 50N.

To learn more about spring scale, refer to the link:

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An illustration of a nuclear reactor. There are 3 parallel lines sticking half out of the reactor labeled rods containing uranium. There are parallel rods in the reactor labeled neutron-absorbing material. It is labeled nuclear reactor.
A power plant needs to slow down the fission reactions in its nuclear reactor. In which direction should the uranium-containing rods in the diagram be moved?

left
right
up
down


Answers

Answer:

D) down

Explanation:

I guess it and got it right :)

In a nuclear reaction, which of the following must be conserved?
A. the number of neutrons
B. the count of nucleons
C. charge
D. the number of electrons

Answers

Answer:

c

Explanation:

Answer:

c

Explanation:

_ is (are) the type of electromagnetic wave(s) with a wave length between 700 and 400 billionths of a meter.

Answers

Answer:

Visible Spectrum is the type of electromagnetic wave with a wave length between 700 and 400 billionths of a meter.

Study the image of a seismic graph.

Graph of P & S Wave Travel Times, showing Travel time in minutes across distance in kilometers for P and S waves. S wave starts at zero kilometers, zero minutes, and increases to 10,000 kilometers, 25 minutes. P wave starts at zero kilometers, zero minutes and increases to 10,000 kilometers, 13 minutes.

About how far does the S wave travel through Earth in 13 minutes?

2,000 km
4,000 km
6,000 km
8,000 km

Answers

Answer:

It is B. 4,000

Explanation:

I just took the quiz on edge2020

Answer:

B

Explanation:

Empty spaces are referred to as

Answers

Answer:

An unoccupied area or volume. The empty space at the sides of the page is called the "margin". ... Atoms are 99.999999999999% empty space.

Explanation:

Answer:

A vacuum.

Explanation:

A vacuum has an empty space and is used in Science.

An object has an acceleration of 18.0 m/s/s. If the net force was doubled and the mass were tripled then the new acceleration would be

Answers

Answer:

12.0 m/s²

Explanation:

Newton's second law:

F = ma

Solving for acceleration:

a = F/m

If force is doubled and mass is tripled:

a' = (2F)/(3m)

a' = ⅔ (F/m)

a' = ⅔ (18.0 m/s²)

a' = 12.0 m/s²

The new value of acceleration of object is 12 m/s².

Given data:

The magnitude of acceleration of object is, [tex]a =18 \;\rm m/s^{2}[/tex].

Let F be initial net force and m be the initial mass. Then as per the problem, the new values of each are,

F' = 2F

m' = 3m

Apply the Newton's Second law, which says that the product of mass and acceleration of object given net force. Then,

F = ma

F = m(18)

F/m = 18 .................................................(1)

Now, for new value of net force,

F' = m'a'

2F = (3m) a'

2F/3m = a'

a' =2/3× (18)                                                   (From equation 1)

a' = 12 m/s²

Thus, we can conclude that the new value of acceleration of object is 12 m/s².

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Television satellites use infrared waves to transmit. true or false

Answers

Answer: false

Explanation: Because Television satellites use microwaves waves to transmit.

Answer: False

Television satellites don't use infrared waves to transmit.

Which statements accurately describe trends found in the periodic table? Check all that apply.

Henry Moseley established a periodic table that arranges the elements by atomic number.
The atomic mass decreases from left to right on the periodic table.
The atomic number increases from left to right on the periodic table.
Nonmetals create a “staircase” down the periodic table.
Metalloids have the characteristics of both metals and nonmetals.

Answers

Answer:

A.)Henry Moseley established a periodic table that arranges the elements by atomic number.

C.)The atomic number increases from left to right on the periodic table.

E.)Metalloids have the characteristics of both metals and nonmetals.

Explanation:

Direct notes from edge:

-Metalloids have characteristics of both metals and nonmetals

-As you move left to right, the atomic number of each element increases by 1

-Henry Moseley Arranged elements in order of increasing atomic number

Which triangle side lengths form a right triangle? Choose all that apply.

A. 5,6,7

B. 6,8,14

C. 8,15,17

D. 10,12,15

E. 15,20,25

F. 16,18,20​

Answers

C and E are right triangles

To figure this out, use the Pythagorean Theorem.

a^2+b^2=c^2

A. 5,6,7

5^2+6^2=7^2
25+36=49
61=49

Not a right triangle

B. 6,8,14

6^2+8^2=14^2
36+64=196
100=196
Not a right triangle

C. 8,15,17

8^2+15^2=17^2
64+225=289
289=289
Right triangle

D. 10,12,15

10^2+12^2=15^2
100+144=225
224=225
Not a right triangle

E. 15,20,25

15^2+20^2=25^2
225+400=625
625=625
Right triangle

A light beam approaches a plain mirror at an incident angle of 39
degrees. What is the angle of reflection?

Answers

Angle is 31 adding all sides

Microwave,radio signal,light,earthquake which does not belong

Answers

Answer:

earthquake does not belong to electromagnetic waves

Earthquake, because the rest are referring to electrical appliances.

Science question!! Please help

Answers

Answer:

It lasted two hours or 120 minutes, it would be smart to say that he was riding up it during the interval 20-60min and riding down it during the interval 60-80min. This is an assumption made because of his speed, when going up a hill our speed is slower while when riding down it, you gain a lot of speed.

What is TRUE with regard to Bronfenbrenner's social ecological model applied to the context of relationships?

Answers

Answer:The affects of proximal factors on a relationship are affected by distal factors

Explanation:

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