overall force acting on an object.
Answer:
Gravity
Explanation:
Gravity is a force that acts upon every single object on Earth.
Are the two atoms shown below in the image from the same element?
The answer is yes
They are isotopes.
Does an explicit formula for a sequence make sense assuming n = 2.5? Explain
Choose the correct answer below
O A. It makes sense, but only if the term for n = 2.5 is an integer
OB. It does not make sense since n is the term number. It is not possible to have a term between the second and third terms.
OC. It makes sense since n is a variable, and variables can be any real number
OD. It does not make sense since n can be negative or positive but must be an integer.
Answer:
c
Explanation:
tbh I think it is c because of what the explanation says so
Answer:
D
Explanation:
because i got it right when guessing its d
How is it possible for the same object to have different amounts of gravitational potential energy?
Answer:
In Newtonian mechanics, the gravitational energy possessed by a mass, because of the gravitational field produced by a second mass.
Explanation:
write a description of your best friend
My bestfriend is the best ever person in my life.
Answer:
Best friend is that person which we share our feeling.
Which gas in Earth’s atmosphere has increased over time due to burning fossil fuels?
oxygen
nitrogen
water vapor
carbon dioxide
Answer:
D) Carbon Dioxide
Explanation:
I hope this is right!
Answer:
d
Explanation:
Just answer the first one at least
Answer:
D
Explanation: That is the lowest point in a cycle
Answer:
I just had a question the same as this.
The answer is: Points (B) & (F)!
Hope it helps! :D
can someone helppppppppp meeeeeeeeeee plzzzzzz ill give brainliest
What is the station 2 code for cupids spread the love escape room?
Answer:CADB
Explanation:
The kangaroo stops at a lake for a drink of water, then starts hopping again to the south. After 5 seconds, the kangaroo is going 2.5 m/s south. What is the kangaroo’s acceleration?
Answer:
A kangaroo hops 60 m to the east in 5 s. What is the kangaroo's average velocity? ... The kangaroo stops at a lake for a drink of water and then starts hopping again to the south. Each second, the kangaroo's velocity increases 2.5 m/s.
What is hydrogens outer most energy level
Answer:
Students should realize that each atom in a group has the same number of electrons in its outermost energy level. For instance, hydrogen, lithium, sodium, and potassium all have 1 electron on their outer energy level. Let students know that these electrons in the outermost energy level are called valence electrons.
What season would it be for someone living near locaton 3 on the Earth?
Fall
Winter
Summer
Spring
Answer:
It would be summer for someone living near location 3 on the Earth.
Explanation:
Determine the acceleration of a car of mass 900 kg, when a net force of 2700 N acts on it.
If the Sun were the size of a small exercise ball (about 0.5 meters (m) in
diameter) and if Jupiter were the size of a golf ball, how big would Earth be
on this scale?
Answer:
the size of a pea
Explanation:
1)the car's engine power is 44000W. Explain this number in a physical sense
...
2)400g masses in April, rising steadily over 20s reaches 100m high. What power is developing in April
...
3)the bullet is fired vertically upwards at a speed of 600 / m / s. to what maximum height it would rise if there were no air resistance
...
Answer:
1) It expresses the rate (top speed) at which it can move with time.
2) P = 20 W
3) h = 18 km
Explanation:
1) Power is the rate of transfer of energy.
⇒ Power = [tex]\frac{Energy(or workdone)}{Time}[/tex]
i.e P = [tex]\frac{E}{t}[/tex]
Thus a car's engine power is 44000W implies that the engine of the car can propel the car at this rate. This expresses the rate (top speed) at which it can move with time.
2) m = 400g = 0.4 kg
t = 20 s
h = 100m
g = 10 m/[tex]s^{2}[/tex]
P = [tex]\frac{mgh}{t}[/tex]
= [tex]\frac{0.4*10*100}{20}[/tex]
= [tex]\frac{400}{20}[/tex]
P = 20 W
3) u = 600 m/s
g = 10 m/[tex]s^{2}[/tex]
From the third equation of free fall,
[tex]V^{2}[/tex] = [tex]U^{2}[/tex] - 2gh
V is the final velocity, U is the initial velocity, h is the height.
0 = [tex](600)^{2}[/tex] - 2 x 10 x h
0 = 360000 - 20h
20h = 360000
h = [tex]\frac{360000}{20}[/tex]
= 18000
h = 18 km
The maximum height of the bullet would be 18 km.
Simple Machines
Name the 6 simple machines
What is a joule and how is it abbreviated?
What is an input force?
What is an output force?
Answer:
Name the 6 simple machines
1.Lever
2.Pulley
3.Screw
4.Axle
5.Wedge
6.Inclined plane
What is a joule and how is it abbreviated?
Abbreviation=J
A measurement of energy and work.
What is an input force?
Input force is the amount of effort used to push down on a road or pull on a rope in order to move the weight.
What is an output force?
output force is the force exerted on an object by a simple machine.
Choose all the answers that apply.
Currently, children are vaccinated for _____.
whooping cough
cancer
chicken pox
measles
polio
Answer:
Measles and Whooping Cough
Explanation:
I really hope so
Answer:
Hey
Explanation:
Atomic energy is produced from changes within the_____ of an atom.
electrons
neutrons
protons
or
necleus
Answer:
Atomic energy is produced from changes within the nucleus of an atom.
Answer:
nucleus
Explanation:
Polar neurons are the most abundant neurons in your body
True or False
Answer:
True
Explanation:
what is the the relationship between velocity and gravity?
Answer: When objects fall to the ground, gravity causes them to accelerate.
Explanation: Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls.
PLEASE HELP ASAP GIVING 33 POINTS FOLLOW ALL THE INSTRUCTIONS
A 10 kg cart is attached to a rope that forces the cart to travel along a circular path. The rope has a length of 2.7 meters and has a rotational speed of 2.0 rotations per second.
Answer:
F = 4361.7 N
Explanation:
In this exercise the force of the string is asked, to solve it we use Newton's second law
F - W = m a
force is the tension of the rope
the centripetal acceleration is
a = v² / r
the angular and linear speed are related
v = w r
let's substitute
F - mg = m w² r
F = m (g + w² r)
let's reduce the magnitudes to the SI system
w = 2.0 rot / s (2π rad / 1 rev) = 4π rad / s
let's calculate
F = 10 (9.8 + (4π)² 2.7)
F = 4361.7 N
After running for a while, the fan becomes hot to the touch, and ever so often releases ___________________ energy into the air.
*Note* Another form of energy is released from the kettle. What is it? ______________
Answer:
thermal
Explanation:
A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed. Note: Recall that the frequency of a wave equals 1/period & the period of a wave equals 1/frequency.
Answer:
frequency = 0.5 Hz and speed = 2 m/s
Explanation:
Given that,
The period of a wave, T = 2 s
Wavelength, [tex]\lambda=4\ m[/tex]
If f be the frequency. So,
f = 1/T
[tex]f=\dfrac{1}{2}\\\\f=0.5\ Hz[/tex]
Speed of a wave is given by :
[tex]v=f\lambda\\\\v=0.5\times 4\\\\v=2\ m/s[/tex]
So, the frequency of the wave is 0.5 Hz and speed is 2 m/s.
All music, _______ in the world, is from only ______ notes.
Answer:
All music in the world, is form only two notes and those notes are described below in detailed explanation.
Explanation:
In the chromatic scale, there are basically seven central musical notes, designated A, B, C, D, E, F, and G. They individual express a separate pitch or frequency. For illustration, the "central" A note has a pitch of 450 Hz, and the "common" B note has a pitch of 495 Hz.
Varieties Of Musical Notes You Require To Understand
Semibreve (Whole Note)
Minim (Half Note)
Crotchet (Quarter Note)
All music, listened to in the world, is from only twelve (12) notes.
A music can be defined as the systematic combination of an instrumental sound and human vocals, in order to produce harmonious tunes or sounds.
A note can be defined as a symbol which is used to denote a musical sound with respect to its pitch and duration.
Basically, all the music that are available and listened to in the world are typically produced from only twelve (12) notes.
This ultimately implies that, any musical piece that you may have come across in this world comprises only twelve (12) notes and these include:
1. A2. A#3. B4. C5. C#6. D7. D#8. E9. F10. F#11. G12. G#Read more: https://brainly.com/question/20245998
2. A 7.0 kg box, which is initially at rest at the bottom of a frictionless ramp, is pulled up the ramp by a string
When it reaches a height of 2.0 m, the box is moving at 6.0 m/s. It takes 2.0 seconds for the box to reach this height.
a) Calculate the work done by the string in pulling the box
up
the
ramp.
b) Calculate the power exerted by the string in pulling the box up the ramp.
Answer:
a) The work done in raising the block up to 2.0 m is 137.2 joules
b) The power exerted by the string in pulling the box up the ramp is 68.6 watts
Explanation:
The question examines the relationship between work energy and power
The parameters of the pulled box are;
The mass of the box, m = 7.0 kg
The height to which the box is pulled, h = 2.0 m
The velocity at which the box is moving at the 2.0 m height = 6.0 m/s
The time if takes the box to reach the height of 2.0 m = 2.0 seconds
The acceleration due to gravity, 'g' is taken as approximately 9.8 m/s²
a) The work done in raising the block up to 2.0 m = The potential energy gained by the block
The potential energy gained by the block, P.E. = m·g·h
Therefore, we have;
The work done in raising the block up to 2.0 m = P.E. = m·g·h
By substituting the given values, we get;
The work done in raising the block up to 2.0 m = 7.0 kg × 9.8 m/s² × 2.0 m = 137.2 joules
b) Power = The rate of doing work
∴ Power, P = Work done/(Time takes for the work)
The work done in raising the block up to 2.0 m = 137.2 joules
The time if takes the box to reach the height of 2.0 m = 2.0 seconds
∴ The power exerted by the string in pulling the box up the ramp, 'P' is given as follows;
P = 137.2 joules/(2.0 seconds) = 68.6 watts
The power exerted by the string in pulling the box up the ramp, P = 68.6 watts.
What is the specific heat of a metal if it takes 15,000 J of heat to raise the temperature of 20 points
a 620-9 sample from 15.0C to 85.0C?
Answer:
0.5 0c
Explanation:
yes yes yes yes
I need help with thisssss
A longitudinal wave is transporting energy from south to north. the particles in the medium will move...
east only
north and south only
north only
east and west only
30 POINTS PLEASE HELP
Answer:
north only
Explanation:
What is the acceleration of a racing car if it's speed is increased uniformly from 44 m /s to 66 m / s over an 11 second period ?
Answer:
the acceleration of the race car is 2 m/s²
Explanation:
Given;
initial velocity of the race car, u = 44 m/s
final velocity of the race car, v = 66 m/s
time of motion of the race car, t = 11 s
The acceleration of the race car is calculated as;
[tex]a = \frac{v-u}{t} \\\\a = \frac{66-44}{11} \\\\a = 2 \ m/s^2[/tex]
Therefore, the acceleration of the race car is 2 m/s²