The figure shows a velocity-versus-time graph for a particle moving along the x-axis. At t=0s, assume that x=0m. What is the particle's position at t=3.0s?
Answers
area = 4x2 + 1x(2+4)/2 = 11
at 3s, particle is at 11m
Related Questions
Sarah throws a ball directly upward at the edge of a cliff with a starting velocity of 3.0 m/sIt lands on the ground with a final speed of 6.0 m/sHow long is the ball in the air?Round the answer to two significant digits
When you add heat to wood it burns. The cellulose that makes up wood is converted to carbon dioxide, water vapor, and ash. This transfer of energy caused a change to the _____ of wood. chemical properties physical properties internal properties
A spherical raindrop 2.7 mm in diameter falls through a vertical distance of 3950 m. take the cross-sectional area of a raindrop = πr2, drag coefficient = 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) calculate the speed a spherical raindrop would achieve falling from 3950 m in the absence of air drag.
Which is a chemical change
Answers
Answer:
Speed of train = 60 km/hr
Speed of plane = 160 km/hr
Explanation:
We can construct the following equations from the given information:
Speed of train * time = 150 -Equation 1
Speed of plane * time = 400 -Equation 2
Speed of plane = (3 * Speed of train) - 20 -Equation 3
We can solve these three simultaneous equations for the three variables (speed of train , speed of plane, time).
Substituting within Eq. 1 and Eq. 2 we get:
Speed of plane * 150 = 400 * Speed of train -Equation 4
Finally, solving Eq. 4 and Eq. 3 simultaneously we get:
Speed of train = 60 km/hr
Speed of plane = 160 km/hr
Answers
Answer:
- 70 kg
Explanation:
We know that,
- Kinetic energy = 1/2 mv²
Where m is mass and v is velocity or speed.
Putting the required values,
- 5040 = 1/2 × m ( 12 × 12)
- 5040 × 2 = m × 144
- 10080 = m × 144
divide both side by 144
- m = 70 kg
So the mass of the diver is 70 kg respectively.
Answers
Answer:
work done by fuel is chemical energy and work done by moving objects is kinetic energy
Explanation:
when work is done by object that object gains energy . when the work is done by an object that object loses energy because it is transferring it to something else .
Answer:
work done by fuel is conversion of chemical energy into mechanical whereas work done by moving object is due to its displacement by the application of force. actually, both of them give same meaning
Answers
The initial velocity of an object is the velocity it begins moving with. i. e if a ball is thrown its initial velocity is the velocity it has once it leaves the hand.
Terminal velocity is the maximum velocity an object can achieve when it is in free fall. i.e if a bowling ball is dropped from a plane, its velocity will increase until it reaches terminal velocity.
A.
They reflect visible light but let infrared light pass through.
B.
They reflect both visible light and infrared light.
C.
They reflect infrared light but let visible light pass through.
D.
They let both infrared light and visible light pass through.
Answers
Because they do not affect visible it only affects infrared light
Answers
and look at the flat, cut end.
The cross-sectional area of the wire is the area of that little circle.
It's equal to
Area = (pi) x (1/4) x (Diameter of the wire)²