Answer:
you have the ans bro
v=2*pi*r/T
plug in the value s
help me please pleasee
Answer:18/2
Explanation:
its half
Yusuf is moving at a speed of 1.4 m/s? and has a mass of 71 kg. How much kinetic energy does he have?
Formula for kinetic energy:
K = ½mv²
Given:
v = 1.4 m/s
m = 71 kg
K = ½ · 71.0 kg · (1.4 m/s)²
K = 35.5 kg · 1.96 m²/s²
K = 69.58 J
Potential difference must be measured in parallel within a circuit, using a device called a voltmeter
Answer:
This is true
Explanation:
This is true because in other To measure the potential difference that is across a circuit, we have to place the device called the voltmeter to be in parallel withe the circuit, so as to get a measurement of the difference in energy from one side of the circuit to the other side. We can also refer to the Potential difference as the voltage and it is measured in volts using a voltmeter
I need help!!! What is the answer!!
Answer:
A I think hope it helps!!
what is science? Illustrate Ur views?
Answer:
Science is
Explanation:
he intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
If a ball drops from 10ft after 5 seconds how high would the ball be. (For every second the ball loses 3ft) a bounce is half of the original height.
A snowboarder is sliding down a hill to the right. What are the 3 forces being used?
Answer:
ANswers
Explanation:
Friction, knetic, and physics
A change of position is called
o distance
O velocity
O speed
O displacement
A gold ball has a mass of 45g. In a speed test, a golf ball was driven from rest to a velocity of 90m/s.
a) If the time taken for the golf ball to reach this velocity was 0.0005 seconds. What acceleration was this?
b) What forces was applied to the golf ball?
Answer:
1)
Acceleration (a)=change in velocity/ change in time
Velocity (v)=90m/s
Time=0.0005s
a=90/0.0005
The acceleration =180000m/s^2 or 180km/s^2
Force = mass x acceleration
m=40g= 0.04kg
F= 0.04x 180000
F= 7200N or 7.2kN
Explanation:
what are metalloids?
Answer:
a type of chemical element whose properties are intermediate between those of metals and nonmetals.
in a hydraulic press, a force of 20N is applied to a piston of 0.20m2 what is the pressure transmitted through the liquid?
Answer:
,
Explanation:
In your own words tell me about the live cycle of a star (4-5 sentences)
Answer: Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.
Explanation: I try to do your question, hope this help
A 1,200 kg car initially traveling at 20 meters/second increases its speed to 28 meters/second. How much work
did the car's engine have to do to cause this change?
A. 38,400 Joules
B. 230,400 Joules
C. 240,000 Joules
D. 470,400 Joules
B
Explanation:
I not sure try to solve I am sorry
I need help with this
Answer:
position 1 and 4................
As particles of matter move faster, an object's
increases.
particle arrangement
temperature
O particle attraction
O potential energy
Answer:
temperature
Explanation:
The movement of particles in an object is directly proportional to the temperature of the object. As the temperature increases, the kinetic energy increases too. This makes the last option (potential energy) incorrect.
The increased kinetic energy results to particles moving farther from each other, which means the particle attraction becomes weaker. This makes the third option (particle attraction) incorrect.
The particle arrangement shows the particles being widely separated. Therefore the arrangement decreases because they become less intact. This makes the first option (particle arrangement) incorrect.
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Acceleration Due to Gravity - Free Fall
V=V;+gt
vir initial velocity (m/s)
=final velocity (m/s)
g=gravity (10 m/s2)
t = time (s)
1. What is the velocity of a dropped object after it has fallen
downward for 3.0s?
V=V;+gt
Vi = 0
8 = 10
t = 3
2. A brick is thrown down off a bridge with a velocity of 5 m/s. What
is its velocity after it has fallen for 2 seconds?
I
3. An arrow is launched straight up from the ground. It reaches its
highest point in 6 s. What velocity was it released at?
a b c d
A V=V+gt
dhehehdhehdhshehehehehehe
With an average acceleration of 0.50 m/s2, how long will it take a cyclist starting from rest to reach a velocity of 13.5 m/s?
A van moves with a constant speed of 20 miles per hour. How far can it travel in 3 1/2 hours
The grocery store is 20 miles away
from where you live. You drive your
car and it takes .5 hours to get there.
What was your rate of speed?
Answer:
40mph
Explanation:
20miles .5 miles away if you go 20 mph you get there in a hour soo if you double to 40 mpg you get there in 0.5
Answer:
40 mph
Explanation:
you went 20 miles in half a hour, multiply twenty by 2 and you get 40
Kinetic energy and mass are ________ proportional.
Answer:
The Kinetic energy and mass are _directly_ proportional.
Explanation:
We know that Kinetic Energy is basically termed as the capacity of a body to do work.
Kinetic energy is often used to associate with moving objects, therefore, K.E is normally termed as the energy of motion.
The formula of K.E of an object of mass and velocity is defined
K.E = 1/2mv²
From the formula, it is clear that K.E is directly proportional to its mass and also directly proportional to the square of its velocity.
For example,
If A toy plane with a mass of 10 kg is flying at 20 m/s. Its K.E will be:
m = 10 kgv = 20 m/sK.E = 1/2mv²
= 1/2(10)(20)²
= 1/2(10)(400)
= 5(400)
= 2000 J
Now, let suppose, if we double the mass of a toy plane i.e.
m = 20 kg
so
K.E = 1/2mv²
= 1/2(20)(20)²
= 1/2(20)(400)
= 10(400)
= 400 J
Therefore, the K.E is doubled when doubled the mass.
Therefore, the Kinetic energy and mass are _directly_ proportional.
Answer:
directly
Explanation:
Which statement correctly describes the relationship between a blackbody radiator, its temperature, and the electromagnetic radiation it gives off? A. As the blackbody radiator becomes warmer, it emits light of shorter wavelengths.
B. As the blackbody radiator becomes warmer, it reflects different wavelengths of light.
C. As the blackbody radiator becomes warmer, it emits random wavelengths of light.
D. As the blackbody radiator becomes cooler, it emits light of shorter wavelengths.
It's A
Answer:
A. As the blackbody radiator becomes warmer, it emits light of shorter wavelengths.
The temperature, and electromagnetic radiation has a relationship where blackbody radiator becomes warmer, it emits light of shorter wavelengths.
What is radiation?radiation can be regarded as the process of heat dissipation without contact with a body.
Therefore , temperature, and electromagnetic radiation of a black body works in the sense that
blackbody radiator becomes warmer during emissions.
learn more about radiation at;
https://brainly.com/question/25110079
#SPJ2
TB 70 states that to determine acceleration 1 or 2 things must change. What must change for acceleration to occur?
Answer:
Revise
Test
1
2
3
4
5
6
7
Newton’s Second Law
Unbalanced forces
When the forces acting on an object do not balance, the resultant force will cause the object to accelerate in the direction of the resultant force.
In other words, a resultant force on a body will cause it to change its velocity. This simply means that unbalanced forces will cause:
acceleration
deceleration
change in direction
Explanation:
which are different forms of energy.
please guys give me fast answer
chemical, sound, radiant, electric???
Which property increases as an electromagnetic waves energy decreases
Answer:
Wavelength
Explanation:
Answer:
wavelength
Explanation:
ape x
whats ur funniest thing u have ever done in ur life mine was me sending a picture of me and my friend at the beach to my principle
Select the community facility which typically has a variety of offerings for physical activity like team sports, exercise classes, and swimming.
Bowling Alley
Golf Course
Skate Park
YMCA
Answer:
YMCA
Explanation:
i know everything ;)
Answer: It should be YMCA if im not wrong i took the test a while back.:)
Explanation:
A toy plane with a mass of 20 kg is flying at 10 m/s. What is its kinetic energy?
A. 1 000 J
B. 200 J
C. 2 000 J
D. Cannot be determined
Answer:
1000J
Explanation:
Given parameters:
Mass = 20kg
Speed = 10m/s
Unknown:
Kinetic energy = ?
Solution:
To solve this problem, we use the kinetic energy equation:
Kinetic energy = [tex]\frac{1}{2}[/tex] m v²
m is the mass
v is the speed
Now insert the parameters and solve;
K.E = [tex]\frac{1}{2}[/tex] x 20 x 10² = 1000J
What acceleration is produced when a 3000 N force acts on a 1,200 kg car?
I think you have to do 3000n times 1200kg an that will get ur answer
How could you determine the injuries or ill person in a secondary assessment?
Answer:
just in internet tho
Signs look, listen, feel and smell for any signs of injury such as swelling, deformity, bleeding, discolouration or any unusual smells. When checking them you should always compare the injured side of the body with the uninjured side. Are they able to perform normal functions such as standing or moving their limbs
Secondary assessments are used in order to determine the injury, how the injury occurred, how severe the injury is, and to eliminate further injury.
Glad to help!
a stone of 1kg is thrown with a velocity of 20m/s and comes to rest after travelling a distance of 50 m. calculate the force exerted on the object.
Answer:
Force = -4N
Explanation:
Given the following data;
Mass = 1kg
Initial Velocity = 20m/s
Distance = 50m
To find the acceleration;
We would use the third equation of motion;
Since, it comes to rest, its final velocity is zero (0).
V² = U² + 2as
Substituting into the equation, we have;
0 = 20² + 2*a*50
-400 = 100a
a = -400/100
a = -4m/s²
Now to find the force exerted
Force = mass* acceleration
Force = 1*(-4)
Force = -4N