Answer:
W₁ = 2F₀d
Explanation:
When a force is applied on a body, due to which the body displaced by some distance, then the work is said to be done. Hence, the work is the dot product of the force nd displacement.
W = F.d
where,
W = Work Done
F = Force Applied
d = Displacement
For student 1:
W = W₁ = ?
F = F₁ = F₀ i
d = 2d i + d j
Therefore,
W₁ = (F₀i).(2di + dj)
W₁ = 2F₀d(i.i) + F₀d(i.j)
W₁ = 2F₀d(1) + F₀d(0)
W₁ = 2F₀d + 0
W₁ = 2F₀d
How can you use a Position vs. Time graph to describe an object’s speed or direction of motion
Answer:
In a position-time graph, the velocity of the moving object is represented by the slope, or steepness, of the graph line. If the graph line is horizontal, like the line after time = 5 seconds in Graph 2 in the Figure below, then the slope is zero and so is the velocity. The position of the object is not changing.
Explanation:
hop it helps
A wave traveling at 50.0 m/s has a wavelength of 10.0 m. What is the frequency of the wave? Show your work below?
Answer:
The frequency of the wave is 5 Hz
Explanation:
Wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. It is expressed in units of length (m).
Frequency is the number of vibrations that occur in a unit of time. Its unit is s – 1 or hertz (Hz).
The propagation velocity is the speed with which the wave propagates in the medium, that is, it is the magnitude that measures the speed at which the wave disturbance propagates along its displacement. Relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation: v = f * λ.
In this case:
v= 50 [tex]\frac{m}{s}[/tex]f=?λ= 10 mReplacing:
50 [tex]\frac{m}{s}[/tex] = f* 10 m
Solving:
[tex]f=\frac{50 \frac{m}{s} }{10 m}[/tex]
f=5 Hz
The frequency of the wave is 5 Hz
Why learning SI base unit are important to understanding the sizes of a different object?
Anyone get this if you do please help me step by step
Answer:
$7.95
Explanation:
$5.75 cost per bag ÷ 47 apples = unit cost of $0.1223. thus, each apple cost $ .1223.
.1223 × 65 apples= $7.95
note_rounding apples to .12*65=$7.8
Jenny has 456 grains of rice. how many grains of rice are left after 234 grains are eaten?
Answer:
222 grains are left....lol such simple question
Can somebody google or use the info on the page to answer question 2 correctly!!! Plz thanks!
(WILL MARK AS BRAINLIEST)
:D
Answer:
Yes, Most living thing need oxegen, plants need light to grow(food).
plants and animals need water. temputre is important too, most living things need a tempure range. therefor, all(most) living things need these 5 thing to live.
just rewrite this in your own word
Hope this helped you
Red.
define polarization (igcse answer please)
Answer:
the action of polarizing or state of being or becoming polarized: such as the action or process of affecting radiation and especially light so that the vibrations of the wave assume a definite form. Polarization, in Physics, is defined as a phenomenon caused due to the wave nature of electromagnetic radiation. There are two types of waves, transverse waves, and longitudinal waves.
plz mark brainliest
ASAP
In an experiment, students were given an unknown mineral. The unknown mineral was placed in 150 ml of water. Once in the water, the volume went up to 165 ml. Then when the same object was dried, then massed on a balance. It had a mass of 225 grams. What is the density of the unknown mineral? Note: You only have to fill in the numerical answer.
Answer:
15
Explanation:
225/(165-150)=15g/cm3
A ball moving horizontally across my desk rolls off at a velocity of 3.3 m/s. Assuming my desk is a height of 0.81 m, how long will the ball be in the air?
Answer in units of seconds. Assume acceleration due to gravity is -9.81 m/s^2
Answer:
girl what- I can't answer this but I need points so I'ma just put this random lol sorry tho . ask the tutor
As a United States citizen, the requirement to serve on juries if called upon is considered which of the following?
Answer:
if u are caught by the jews u die
Explanation:
Answer: An obligation
Explanation: Because I got it right on Prepworks!
what is the difference between distance and displacement? give an example of each.
Answer: Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Explanation: hope it helps :)
Pls Answer I’m Being Timed!!
Substance Specific Heat (1 kg ? K')
Aluminum
900
Copper
390
Brass
380
Silver
230
Platinum
130
of the five metal samples, with equal masses, which would be the best material to use if you needed something to heat up quickly?
A aluminum
B. platinum
C. copper
D. gold
Answer:
Platinum
Explanation:
The specific heat of a substance gives the amount of energy it takes to raise the temperature.
Use Hooke's Law and Newton's 2nd Law to derive a formula for the acceleration of an object of mass m on a frictionless surface which is attached to a spring with a constant k which is stretched a distance L. The acceleration should be in terms of m, k, and L.
Answer:
a = kL/m
Explanation:
Here we can use Hooke's Law to find out the force applied on the system. Hooke's Law states that when a spring is stretched by some force, the force applied is directly proportional to the displacement of spring. The formula is given as:
F = kL
Now, the Newton's Second Law of motion states that whenever an unbalanced force is applied to a body it produces an acceleration in the body, in its own direction. So, the force is given by the formula:
F = ma
Comparing both the forces, we get:
kL = ma
a = kL/m
During what major athletic competition did the Munich Massacre occur?
Answer:
The answer is A
Explanation:
Answer:
A. Summer Olympics
Explanation:
How do you calculate relative velocity?
Answer:
Vab=Va-VbVab=Vb-VaExplanation:Vab is velocity of a relative to b
Vba is velocity of b relative to a
A scientific theory is a hypothesis supported by many experiments
True or False
Answer:
I believe it is True... I hope it is correct :)
Explanation:
Answer : False
Explanation :
Heart rate refers to the number of times your heart beats in one minute
True
False
Answer:
true
Explanation:
Answer:
true
Explanation: