If a man does 4500 J of work from a high rise building of 10 m, what is his mass?

Explanation:

The potential energy (Ep) = 4500 J

Ep = m. g. h

=> m = Ep/(g.h)

m = 4500/(10×10)

= 4500/100

= 45

so, the mass = 45 kgs

Suppose a rifle made of styrofoam could fire a bullet the size and mass of a bowling ball, which of the following statements would be true? (choose two)

A. The force of the rifle on the bullet would be the same as the force of the bullet on the rifle.

B. The rifle's acceleration would be greater than that of the bullet.

C. The rifle's acceleration would be less than that of the bullet.

D. Both the rifle and the bullet would experience the same acceleration.

troll and links will be reported

describe the role of gravity in the motions within galaxies and solar system. identify and deceive the inner planets, outer plants, and asteroid belt.

Which equation below is the correct equation for photosynthesis?

If a force of 10 N acts on an object and an additional force of 6 N acts on the object in the same direction. What will be the net force be on the object?
A- 60 N
B- 16 N
C- 6 N
D- 4 N

Use Newton's 2nd law (f=ma) to solve the following problem.

Grady pushed his tennis ball with a mass of 30 kg causing an acceleration of 1 m/s/s. What force is Grady applying?
A- 30 N
B- 30
C- There is no force, the tennis ball did not move
D- 1 N

What is the motion of the particles in this kind of wave? A hand holds the left end of a set of waves. The waves themselves make a larger set of waves in the same direction as that of the smaller waves. A label Wave motion is above the series of waves and an arrow next to the label points right. The particles will move up and down over large areas. The particles will move up and down over small areas. The particles will move side to side over small areas. The particles will move side to side over large areas

Can you help with this please

NO LInks Someone please help ans give me a real answer Identify the behavior of light shown by each diagram below and describe how the light behaves.

BRainliest if correct

Light waves bend when they pass from one medium to a different medium because the speed of the wave changes.


True
or
False

Which equation below is the correct equation for cellular respiration?

NO LInks Identify the behavior of light shown by each diagram below and describe how the light behaves.

what is the meaning of painting

Could someone please help?

BRainliest if correct (if you don't know don't answer.)

2

HELP ASP PLEASED

Venn Diagram Alternative


Directions: Use the phrases in the word bank below to describe either analog signals, digital signals, or both. Write the phrase under the concept it represents.



Word Bank:


Transmitted as pulse


Used by landline telephones


Converted into binary code


More reliable


Used by computers


Continuous


Less Reliable


All electromagnetic waves


Intervals








Digital signals:



Analog Signals:



Both:

Where did the carbon in all living things come from?

(A) It was made in stars that lived before the solar system formed.
(B) It was made in the formation of the solar system.
(C) It was made during the big bang.
(D) It was produced by cyanobacteria.

best exercises for these topics.
(have the amount of exercises, have 4 exercises for each.)

What processes were involved in the formation of the model? How is the model similar to the real metamorphic sample? How is the model different from the real metamorphic sample?

PEASE HELP ASAP They need to be whole numbers
50N = _____________ acceleration (m/s^2)
100N = _____________ acceleration (m/s^2)
150N = _____________ acceleration (m/s^2)
200N = _____________ acceleration (m/s^2)

n order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be diverted. In three to five sentences, construct a potential chain of consequences for what could happen when water is diverted from large bodies like lakes and rivers. The chain does not have to be linear (i.e., five steps in a row), but can have several branches, one for each different potential consequence

A coyote is looking for some food for its young. It spots a pocket mouse near a cactus and starts to track and hunt the mouse for food.

In this scenario, the cactus is considered:
a. predator
b. prey
c. neither

Which of the following organelles is in plant cells, but not animal cells?

How are systems different from industries? Use an example to support your answer.

BRainliest if correct

When light passes from air to a different medium, as the density of the second medium increases, the angle of refraction

increases deceases or stays the same

As you push a lawnmower, the horizontal force is 300 N. If you push the mower a distance of 500 m, how much work do you do?

Which of the following is true of elements?
A.
They are always composed of only two types of matter.
B.
They are composed of only one type of matter.
C.
They are not composed of any type of matter.
D.
They are composed of two or more types of matter

What processes were involved in the formation of the model? How is the model similar to the real sedimentary sample? How is the model different from the real sedimentary sample?

Use what you have learned in this lesson to explain why people tend to wear light-colored clothing during the warmer months of the year. Use evidence and scientific reasoning to support your answer.

no links i need help please Material that allows light to pass through it is called _____________________.
A. translucent B. transparent
C. polarized D. opaque

_____ 8. Light that is absorbed is converted to __________________ radiation.
A. radio wave B. ultraviolet
C. light D. infrared

i hope everyone is ok rn with this tornado . prayers if anyone hurt

A cat jumps from a bed to the floor. What are two forces that occur when the cat lands on the floor?