The balls in the image above have different masses and speeds. Fill in the blanks in the following sentence: Ball ___ has the greatest amount of momentum and ball ___ has the least amount of momentum.
Answers
Explanation:
The given figure shows four balls A,B,C and D. Momentum of an object is defined as the product of its mass and velocity.
Momentum of ball A, p₁ = m₁v₁ = 0.7 kg × 15 m/s = 10.5 kg-m/s
Momentum of ball B, p₂ = m₂v₂ = 5.5 kg × 1.2 m/s = 6.6 kg-m/s
Momentum of ball C, p₃ = m₃v₃ = 5 kg × 2.5 m/s = 12.5 kg-m/s
Momentum of ball D, p₄ = m₄v₄ = 1.5 kg × 5 m/s = 7.5 kg-m/s
So, ball C has the greatest amount of momentum and ball B has the least amount of momentum.
Related Questions
I am one of the most dynamic processes of Earth. I help recycle Earth's materials. I move Earth's crustal plates, creating many different geological surface features. I am also the cause of natural disasters, such as earthquakes and volcanoes. What am I?
What was the main effect of the Equal Employment Opportunity Act of 1972?A. It prohibited discrimination based on age. B. It extended the provisions of the Pregnancy Discrimination Act. C. It extended the provisions of Title VII to previously exempt employers. OD. It prohibited different wages for men and women performing the same work.
Which of the following is NOT an early sign of heat illness?DizzinessHeadacheFlushed faceExcessive sweatingStruggling to perform
HELP!! Worth a lot of points :) (Physics question)
b. unbalanced force.
c. gravitational force.
d. centripetal force.
Answers
b). unbalanced force
There's no such thing as either of these. A group of two or more forces can be balanced or unbalanced. A single force can't be.
c). gravitational force ... doesn't cause an object to move in a circle;
Drop a stone from the roof of a tall building and watch it fall.
It goes straight down, not in a circle.
d). centripetal force ... force directed toward the center of a circle,
causes an object to move in a circle.
an unbalanced force moving everyone in Daniel and Maria's direction
b. False
Answers
Final answer:
False. The occurrence of a static charge on a substance is due to the gain or loss of electrons, not protons. This electron transfer occurs mostly when friction is between two different materials, leading to the creation of static electricity. Protons, being part of the atomic nucleus, stay stable and do not move, unlike electrons.
Explanation:
The statement given in the question is False.
- Static charge develops on a substance when it gains or loses electrons, not protons. In fact, when friction is involved between two different materials, electrons get transferred from one material to another.
- The one that gains electrons becomes negatively charged, while the one that loses electrons becomes positively charged. This is the principle behind the creation of static electricity. The protons in an atom are part of the atomic nucleus and they remain stable and don't move around, unlike electrons, which can move freely and transfer from one atom to another.
Learn more about Static Charge here:
#SPJ2
Answers
Therefore,
3 x 0.45 x 10 = 13.5J <- it's joules because it's energy
Answers
1.
Answer:
Explanation:
as we know that equation of straight line passing through a fixed point and having undefined slope is given as
here we have
so we will have
2.
Answer:
slope = ZERO
Explanation:
Slope of the straight line is defined as the tangent of the angle made by the line with respect to x axis
here we need to find the slope of a straight line parallel to x axis so the angle is ZERO degree
hence the slope will be given as
3.
Answer:
Explanation:
Slope of a straight line passing through two different points is given as
here we will have
4.
Answer:
here x' = any positive number
Explanation:
If we translate the graph 2 units left of the given position so we can say that we have shifted the graph above from its given position.
So we will have
here x' = any positive number
y-
y=m(x-
then we plug in the known values
y=m(x-4)+7
we leave the slope as variable m since it is undefined
For Question 2
A line that is parallel to the x-axis is a horizontal line and since the slope of a line is defined as the Δy/Δx (change in y/change in x) and the change in y is 0 at any 2 points observed on the line the slope is 0. (0/any number is 0)
For Question 3
Following the same relationship as question 2 we can solve for the slope.
Δy/Δx
now we plug in the known values from the two points given
(5-7)/(-3-1)
-2/-4
m=1/2 or 0.5
and For the Final Question
a translation left or right is done by affecting the x variable if you add 2 to x then the x value will have to be 2 less to get the same result...in other words when x is 1 the value of y is also 1...but if I wanted the whole equation translated left 2 unites then I would want the same y-value at an x-value 2 smaller... in other words, in our example x will be -1 when y is 1. For this value found on the graph to match the equation our x value must have 2 added to it in the equation....therefore the equation that translates y=|x| two units left is...
y=|x+2|
Answers
B) The current in the four bulbs is much less than the current in three bulbs.
C) The current in each bulb remained the same even though another bulb was added.
D) The current in the fourth bulb is less than the current int he other three bulbs.
Answers
Since all the bulbs are connected in parallel with each other
so here voltage across each bulb will remains the same
so here we will have
now all bulbs are identical and we have same voltage source across all the bulbs
so we will have current in each bulb given by same equation
now we can say that correct answer will be
C) The current in each bulb remained the same even though another bulb was added.
The answer is C) The current in each bulb remained the same even though another bulb was added.