Answer:
the ball ofc
Explanation:
the ball have a greater mass then the feather and it have the same speed as the feather
If a bouncing ball has a total energy of 20 J and a kinetic energy of 5 J, the ball’s potential energy is
5
10
15
20
J.
If the kinetic energy of the ball decreases, then the potential energy will
decrease
increase
Stay the same
.
.
Answer:
15 and Increasing
Explanation:
Hope this helps
Have a wonderful day and many more to come
Alexis~
~A.K.A Moon~
What element would I make if I added 2 protons to Lithium (Li)?
Answer:
Lithium Fluoride
One lithium atom can combine with one fluorine (F) atom. Together, they make the formula LiF. Fluorine has seven electrons of it's own. Lithium gives up its one electron to make both atoms happy.
Explanation:
A 300 kg snowmobile is traveling at 30 m/s. How fast would a 200 kg snowmobile need to travel to have
the same momentum?
A 200 kg snowmobile having the same momentum will travel at 45 m/s.
What is momentum?Momentum of an object is the product of mass and speed of an object.
P = mv
where;
m is mass of the objectv is speed of the objectm₁v₁ = m₂v₂
v₂ = m₁v₁/m₂
v₂ = (300 x 30)/200
v₂ = 45 m/s
Thus, a 200 kg snowmobile having the same momentum will travel at 45 m/s.
Learn more about momentum here: https://brainly.com/question/7538238
If the magnetic field directed north, and the positive charge velocity directed
east, the direction of magnetic force is:
Answer:
Answer would be South..
6 The amount of strawberries Maria uses is 383/8 times the amount of the other fruits
combined
How many cups of strawberries does Maria use?
CA. 3/8x(3 2/3+2 1/4+2 3/4)=3/8x868=3932 cups
B. 3 2/3+2 1/4+2 3/4=8 2/3 cups
C. 3/8 3 2/3 +2 74 + 24 = 3 8 (3 8/12+2 31 2+2 9/12)=3/8x8
8/12=3/8x8 2/3=3 2/8=3 1/4 cups
• D. 3/8x3 2/3=3/8x11/3=11/8=1 3/8 cups
.
A drag racer accelerates uniformly over a course 400m long. Determine the car's acceleration if it reaches a top speed of 120 m/s. Assume that the car starts from rest.
According to thrid equation of kinematicsthird equation of kinematics
[tex]\\ \rm\hookrightarrow v^2-u^2=2as[/tex]
Isolate the equation for a
[tex]\\ \rm\hookrightarrow a=\dfrac{v^2-u^2}{2s}[/tex]
[tex]\\ \rm\hookrightarrow a=\dfrac{120^2-0^2}{2(400)}[/tex]
[tex]\\ \rm\hookrightarrow a=120^2/800[/tex]
[tex]\\ \rm\hookrightarrow a=16m/s^2[/tex]
Starting from rest, a boat increases its speed to 4.12 m/s with constant acceleration. (a)
What is the boat's overage speed? (b) If it takes the boat 4.77s to reach this speed, how far
has it travelled?
Answer:
initial velocity = 0 m/s
final velocity = 4.92 m/s
constant acceleration so,
(a) average velocity =
(initial velocity + final velocity)/2
(b) distance = average velocity x time
substitute and calculate
Explanation:
HOOE ITS HELP ;)
The initial velocity is zero. and the acceleration is constant. Thus the average velocity of the boat is 4.12 m/s. The boat will cover a distance of 19.6 m within 4.77 s.
What is acceleration ?Acceleration is a physical quantity that, measures the rate of change in velocity. It is a vector quantity thus having both magnitude and direction. It can be defines as the ratio of change in velocity to the change in time.
If the acceleration is constant, then the magnitude of velocity is constant.
Given initial velocity = 0 since the boat was in rest.
then the average speed of the boat = 4.12 m/s
Δt = 4.77 seconds.
The distance covered within this time can be determined using the equation as follows:
s = speed × time.
s = 4.12 m/s × 4.77 s = 19.6 m
Therefore, the boat will travel up to 19.6 m within 4.77 seconds.
Find more on acceleration:
brainly.com/question/2303856
#SPJ2
6. What could you do to increase the strengths
of your electromagnet?
Answer: Increase Winding Count
Reduce Resistance
Increase Voltage
Switch From AC to DC
Explanation: HOPE THIS HELPS!!! ^w^
What is the speed at 5s?
An office building has a 24-volt branch circuit installed for landscape lighting around the front of the building. The circuit was installed in UF cable which requires a minimum burial depth of ___ inches for this circuit.
The circuit was installed in UF cable which requires a minimum burial depth of 6 inches for this circuit.
UF cableUF cable is used as an underground feeder cable to distribute power from an existing building to outdoor equipment. UF cable can also be used as direct burial cable.
For the 24-volt branch circuit installed, the minimum burial depth will be 6 inches.
Thus, the circuit was installed in UF cable which requires a minimum burial depth of 6 inches for this circuit.
Learn more about UF cable here: https://brainly.com/question/8591560
If a problem says an object has a
"constant velocity”, that means:
A) Ax = 0
C) v; = 0
B) a = 0
D) Vi = 0
Answer:
Acceleration = 0
Explanation:
Initial velocity is the speed it starts going at. Final velocity is how fast it's going by the end. The acceleration is what changes the velocity. But if the acceleration is 0, the velocity will not change
What is the meaning of the reference point in electric potential?.
Answer:
ELECTRIC POTENTIAL• the amount of work needed to move a unit charge from a reference point to a specific point against an electric field.
Object 1 has a mass of 3m and is moving to the right at a velocity of
4v. Object 2 has a mass of m is moving to the left at v. After the objects collide inelastically, object A is moving to the left at a velocity of v (one third of its original velocity). Derive an expression for the final velocity V of object B.
I am confused because I thought the when it is an inelastic equation, then that means that the objects stick together. So how can you find the final velocity of object B (also it shows that after the collision, the two objects to in fact split apart)?
Answer:
In a collision, the velocity change is always computed by subtracting the initial velocity value from the final velocity value. If an object is moving in one direction before a collision and rebounds or somehow changes direction, then its velocity after the collision has the opposite direction as before.
What is the soft tissue called at your nose and ears?
A. tendon
B. bone
C. muscle
D. cartilage
Answer:
The answer is D, cartilage.
Is the story of isaac newton and the apple tree true??.
Answer:
si
Explanation:
What law explains why a collapsing cloud usually forms a protostellar disk around a protostar?.
Answer:
conservation of angular momentum
Explanation:
Quizlet
Could gold be made from other elements?
Answer:
Yeah, you can make gold from other elements.
Explanation:
To make gold out of other elements you need to have a nuclear reaction.
I hope it helps! Have a great day!
Muffin ^^
Answer:
Yes.
Explanation:
Gold can be made from other elements but it is too expensive so it’s not really worth it.
I hope it helps! Have a great day!
bren~
help me please┐(‘～`;)┌
Answer:
(3) Potent energy per unit volume
Explanation:
The kinetic energy, pressure and flow speed all change with cross-section area so they are not constant over time. Because the flow is in a horizontal pipe, the height never changes so (3) Potent energy per unit volume is constant.
Answer:
Option C
Explanation:
Mark the line horizontal pipe.
Means the height is constantPotential energy depends upon height.So potential energy also remains unchangedWhich statement describes the relationship between bonding and surface
tension?
O A. The more hydrogen bonds a molecule can make, the higher the
surface tension,
O B. The more ionic bonds a molecule can make, the higher the surface
tension
C. The more hydrogen bonds a molecule can make, the lower the
surface tension,
O D. The more ionic bonds a molecule can make, the lower the surface
tension,
Answer:
The more hydrogen bonds a molecule can make, the higher the surface tension.
Explanation:
Hydrogen bonds provide higher surface tension to a liquid
More hydrogen molecules - stronger cohesive forces
Answer:
The statement describes the relationship between bonding and surface
Explanation:
C. The more hydrogen bonds a molecule can make, the higher the surface tension.
Hope this helps
How are cactus adapted to survive in deserts?
1. They have evolved their leaves into spikes for minimum water loss through transpiration.
2. They have a waxy layer for minimum water loss.
3. They have thick walls for minimum water loss.
4. They can take water from atmosphere.
5. They change the photo energy from Sun into an intermediate stage and store it, so that they can make food even in night.
A yellow train of mass 100 kg is moving at 8 m/s toward an orange train of mass 200 kg traveling in the opposite direction on the same track at a speed of 1 m/s. They collide and stick together! What is the final momentum of the new combined train?
A. 100 kgm/s
B. 600 kgm/s
C. 800 kgm/s
D. 80 kgm/s
Answer:
Let the momentum of the orange train be positive
P = 100 * 8 - 200 * 1 = 600 kg-m/s
P(final) = 600 kg-m/s
P / M = 600 kg-m/sec / 300 kg = 2 m/s
Answer-B final momentum = 600 kg-m/s
Walt ran 5 kilometers in 25 minutes, going eastward. What was his average velocity? 0. 17 km/min east 0. 2 km/min east 5 km/min east 25 km/min east.
Answer:
0.2 km/min east
Explanation:
Walt ran 5 kilometers in 25 min, going eastward. What was his average velocity?
m a t h
How many electrons does one atom of carbon share to complete its valence shell?.
Answer:
2 electrons
Explanation:
carbon has 6 and only needs 2 to get to 8
If a spinning skater pulls her arms in so as to reduce her rotational inertia by half, by how much will her rate of spin increase
What change slowly occurs during the main-sequence lifetime of a star?.
Conductor B is blue, conductor A is red
A. Conductor A has a lower resistance
B. Conductor B has a lower resistance
C. Both conductors have the SAME amount of resistance
D. There is not enough information provided to answer this question because resistance has no relationship to current and voltage
Answer and explanation please!
Answer:
Option B, B has lower resistance
Explanation:
Ohm's law defines the relationship between the voltage, current, and resistance in an electric circuit: i = v/r. The current is directly proportional to the voltage and inversely proportional to the resistance.
A linear elastic spring can be compressed 10. 0 cm by an applied force of 5. 0 N. A 4. 5
kg crate of apples, moving horizontally at 2. 0 m/s collides with the spring. What will be
the maximum compression of the spring?
The maximum compression of the spring is 0.6 m.
Spring constantThe spring constant of the spring is calculated as follows;
F = kx
k = F/x
k = (5)/(0.1)
k = 50 N/m
Maximum compression of the springThe maximum compression of the spring is calculated as follows;
U = K.E
¹/₂kx² = ¹/₂mv²
x² = (mv²)/(k)
x = √(mv²)/(k)
x = √(4.5 x 2²)/(50)
x = 0.6 m
Thus, the maximum compression of the spring is 0.6 m.
Learn more about spring constant here: https://brainly.com/question/1968517
PLEASE HELPPPP!!!!
in the diagram, the direction of a current and the magnetic field around it are shown. describe what would happen to the magnetic field if you increased the number of turns in the coil and reversed the direction of the current
Answer:
more turns in a coil will make stronger magnet field and reversed direction of the current will change the pole of the magnet
Explanation:
by winding a coil , it concentrates magnetic field of the current in smaller space so more turns of coil mean stonger magnetic field.
explanation for change of direction of current is in pic.
i hope it helps.
More turns in a coil will make stronger magnet field and reversed direction of the current will change the pole of the magnet.
What is Current?By winding a coil , it concentrates magnetic field of the current in smaller space so more turns of coil mean stonger magnetic field.
In a full electrical circuit, current is the rate at which electrons move past a certain point. Current = flow, at its most fundamental level.
The international unit for measuring current is an ampere (AM-pir), sometimes known as an amp. It describes how many electrons.
In a circuit, a current of 1 ampere corresponds to the movement of 1 coulomb of electrons, or 6.24 billion billion (6.24 x 1018) electrons, through a single location in a second.
Therefore, More turns in a coil will make stronger magnet field and reversed direction of the current will change the pole of the magnet.
To learn more about magnetic filed, refer to the link:
https://brainly.com/question/15719243
#SPJ2
What will be the extension of a spring with a spring constant of 3N/m if a 15N force is applied?
A person uses a force of 7 N to drag a garbage can a distance of 15 m. How much work is done on the garbage can?
