Answer:
It is heavy which affects the speed of things.
Explanation:
The average swimming speed of a salmon is about 5 ft/s. If a salmon swims at this speed for a full minute, how far will the salmon travel?
300 feet because 5x60=300 and there is 60 seconds in a min
1) A parked car starts to move with a constant velocity of 3 m/s, after moving
3.4 seconds, how far did the car go?
Answer:
velocity (v) =distance(s) ÷ time (t)
Explanation:
v=s÷t
s=v×t
s=3×3.4
s= 10.2m
the idea that earth was the center of the universe is an example of ---that has been long dicarded
Answer:
Geocentric model of the universe
Explanation:
In the geocentric model of the universe, the earth is the center of the universe. This theory was later replaced by the heliocentric model which places the sun as the center.
This belief was propagated by the ancient Greeks. The geocentric model of the universe was proposed by Ptolemy.
The model suggests that other planetary bodies orbits the earth.
A balance uses small metal weights of known mass to determine the mass of a substance. Where would a balance NOT function correctly?
A balance scale.
A.
in a vacuum on Earth
B.
on the Moon's surface
C.
on the Earth's highest mountain
D.
in a zero-gravity environment
Answer:
D is the answer.
Explanation:
Just do it.
Answer:
D
Explanation
just took the test
A 4.0 kg objects is lifted 1.5 m. How much work
is done against the earth gravity?
Answer:
58.8 Joules
Explanation:
Work is defined as force times distance. Work is a measure of the energy expended in applying a force to move an object.
Work = Force x Distance
An object of mass 4 kg is lifted to 1.5 meters. So, the amount of work done against the gravity of the earth will be equal to 58.8 J.
What is work?When an object is transported over a range by an external force, at least a portion of that force must be applied inside the direction of the displacement. This is known as work in physics. When multiplying the length of the pathway by the component of force acting along the path, work can be calculated if the force is constant.
The work W is proportional to the force f times the length d, or W = fd, to mathematically describe this idea. The work is W = fd cos if the force is applied at an angle of to the displacement.
The given information from the question is,
Mass, m =4.0 kg
Distance, d = 1.5 m
g = 9.8 m/s²
[tex]Work(W)=force(f)*distance(d)[/tex]
W = 4 × 9.8 × 1.5
W = 58.8 J
Therefore, the work done against the gravity of the earth will be equal to 58.8 J.
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How has Psychology changed the way you think about yourself, others, or how the world works so far? Come up with at least one specific example of how you've applied something from psychology to interpret behavior or an experience, or to influence others.
Answer:
How does psychology help us understand ourselves?
1. Increased self-understanding and insight. This is a no-brainer: By learning about psychological constructs, such as dimensions of personality, we can better understand ourselves, our motives, and our patterns of behavior. Psychological assessments allow us to better know and understand our true selves.
Jim pushes hard on a rock that weighs 500 pounds. He pushes with a force of 50 pounds, but the rock doesn't move. How much work did Jim do?
---> Please answer and explain it!! I can't understand this question! Thank you so much!
Answer:
Zero work
Explanation:
Recall that work done on an object is defined as the product of the net force applied to an object times the distance it travels in the same direction as the force.
Since in this case Jim used a given force to push a rock, but it didn't move, then he did zero work (because the distance moved is zero).
Which force is represented by the arrow at B?
A )force of friction
B) force of gravity
C )tension force
D) normal force
A is pulling the block straight down toward the center of the Earth, no matter what the slope of the plane may be. A is the force of gravity.
The directions of B and C both depend on the slope of the plane.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
A is pulling the block straight down toward the centre of the Earth, no matter what the slope of the plane may be. A is the force of gravity.
The directions of B and C both depend on the slope of the plane.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
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Which organ completes the majority of chemical digestion?
Answer:
The majority of chemical digestion occurs in the small intestine. Digested chyme from the stomach passes through the pylorus and into the duodenum.
12. Nitrogen is Nz. One molecule of nitrogen gas is made up of
a. Two atoms of nitrogen
b. One atom of nitrogen and one atom of oxygen
C. One atom of nitrogen
d. Two atoms of nitrogen and one atom of oxygen
Answer:
A that the only answer that I know
Which one effect that burning fossil fuels has on the environment
The support condition of the truss shown as Figure 1 below are such that the truss is pinned at
A and supported by pin rollers at E. The truss is subjected to loading as shown on the Figure.
a) Calculate the reactions at supports A and E.
b) Calculate the force in each member of the truss. Reproduce and fill in the given table
by placing your answers in the columns designated (Force in the member) and
(Nature of the Force i.e. strut or tie)
80KN
с
90KN
3m
D
B
60kN
4m
А
E
F
40 KN
3m
3
3
Зm
A dog is walking back home and its motion is modeled by the graph above. What position was the dog at 3 seconds after it started walking home?
ceres orbits the sun every 1680 days. calculate how many seconds it takes for ceres to complete one orbit.
Answer:
Ceres takes 1,682 Earth days, or 4.6 Earth years, to make one trip around the sun. As Ceres orbits the sun, it completes one rotation every 9 hours, making its day length one of the shortest in the solar system.
What is a difference between an object's speed and velocity?
Answer:
.
Explanation:
Speed, being a scalar quantity, is the rate at which an object covers distance. ... On the other hand, velocity is a vector quantity; it is direction-aware. Velocity is the rate at which the position changes. The average velocity is the displacement or position change (a vector quantity) per time ratio.
Answer:
velocity is the magnitude and the direction and speed is the distance something traveled in a certain amount of time
SOMETHING:
hope this helps
All of the following steps are included in a self-modification program except __________. A. specifying target behavior B. designing a program C. focusing on one goal at a time D. gathering data about target behavior
(Psychology)
Answer:
C)focusing on one goal at a time
Explanation:
Self-modification programs could be regarded as a program that help individual in managing unwanted as well as dysfunctional behavioral responses whenever they are going through a problem and try to deal with it. For instance the dysfunctional behavioral response for someone with a panic attack is avoidance. Some of the the steps that are involved in in a self-modification program are;
✓ specifying target behavior ✓designing a program
✓ gathering data about target behavior
Answer:
c
Explanation:
on edge 2020
A truck traveling at 100 km/hr strikes an unfortunate bug and splatters it. The acceleration resulting from the impact is:_______
a. Greater for the truck
b. Greater for the bug
b. The same for both the bug and the truck
d. Impossible to determine
Answer:
b. Greater for the bugExplanation:
The conservation of linear momentum states that the momentum before impact equals the momentum after impact
Also, when two objects collide, the change of momentum of particles m1 and m2 are equal in magnitude and opposite in sign and the total momentum change equals zero. Hence during a collision, Each object experiences the same force for the same amount of time, leading to the same impulse, and subsequently the same momentum change. in general, it is only the acceleration and the velocity components that differ for the two objects during the interaction.
Consequently, The object with the least mass always receives the greatest velocity change and acceleration.
Can you do a backflip
Answer:
yes a double gainer
Explanation:
7. How many forces are acting on this object? *
Fnorm
Ffrict
Fapp
Fgray
Å
Answer:
4
Explanation:
As you can see in the free body diagram there are 4 forces acting on the body.
William wanted to create a report on a geographical location with the greatest species diversity. Which ecosystem can consider for his report?
A.
the ocean
B.
a desert
C.
a tropical rain forest
D.
a coral reef
A student determines the density, solubility, and boiling point of two liquids, Liquid 1 and Liquid 2. Then he stirs the two liquids together and heats them. After stirring and heating the liquids, two different liquids form, Liquid 3 and Liquid 4.
Then the student determines the density, solubility, and boiling point of Liquids 3 and 4. He concludes that a chemical reaction occurred. Here are his results:
Dentity)
Soluble in Berling
Point
ܠܐ L
164
Yes
0.87
1500
Liquid
0.96
Yes
Liquid 2
Yes
and heating
Liquid
166
Loud
100
How does the student know that a chemical reaction has occurred?
The student knows that a chemical reaction has occurred because Liquid 3 has different properties than Liquid 4.
The student knows that a chemical reaction has occurred because Liquid 1 has different properties than Liquid 2.
The student knows that a chemical reaction has occurred because Liquids 3 and 4 have different properties than Liquids 1 and 2.
The student knows that a chemical reaction has occurred because a chemical reaction always occurs when two liquids are mixed together.
Answer:
The student knows that a chemical reaction has occurred because Liquids 3 and 4 have different properties than Liquids 1 and 2.
Explanation:
Sulfur difluoride consists of a central sulfur atom and a fluorine atom on each side. Draw a model of the molecule formed by putting lines between the atoms to represent bonds so that each atom has the correct number of bonds.
Answer:
F - S - F
Explanation:
Answer:
F-S-F
Explanation:
PLATO ANSWER
A hockey puck attached to a horizontal spring oscillates on a frictionless, horizontal surface. The spring has force constant 4.50 N/m and the oscillation period is 1.20 s. What is the mass of the puck
Answer:
m = 0.164 kg
Explanation:
T (period)
k (force/spring constant)
m (mass)
T = 2*Pi*sqrt(m/k)
T/(2*Pi) = sqrt(m)/sqrt(k)
(T/(2*Pi))*sqrt(k) = sqrt(m)
m = ((T/(2*Pi))*sqrt(k))^2
m = 4.5*((1.2/(2*Pi)))^2
m = 0.1641403175
If galaxy A is 800 million light years away and galaxy B is 1500 million light
years away, according to Hubble's Law, which one is farther
Average weather conditions in a specific location for a long time
A- weather
B- the climate
C- Humidity
Answer:
B- the climate
Answer:
B - the climate
Explanation:
humidity is the concentration of water vapour present in air.
if i throw up an object up at 31 m/s, how long will it take to get to its highest point
Answer:
Explanation:
vf=vi+at
vf=31 m/s
vi=0 m/s
a=g=9.8 m/s2
t=?
vf-vi=at
vf-vi/a=t
t=vf-vi/a
t=31 m/s-0/9.8
t=3.16 s
Select all of the characteristics associated with freshwater ponds. (Click multiple answers)
Answer: The signs of a well-balanced pond include healthy fish, clear water, thriving plants, and minimal pests such as algae.
What constant acceleration (in ft/s2) is required to increase the speed of a car from 27 mi/h to 50 mi/h in 5 seconds
Answer:
6.746 ft/s^2
Explanation:
v(t)=50
v(0)=27
t=5/3600 = 1/720 hours
v(t)-v(0)= a(t-0)
50-27= a(1/720)
a= 23*720= 16560 mi/h^2
16560mi/h^2 * 5280/3600^2 (ft/s^2) =6.746 ft/s^2
The acceleration required to increase the speed of a car from 27 mi/h to 50 mi/h in 5 seconds is 6.75 ft/s².
Acceleration is given by:
[tex] a = \frac{\Delta v}{\Delta t} = \frac{v_{f} - v_{i}}{t_{f} - t_{i}} [/tex]
Where:
[tex] v_{f} [/tex]: is the final speed of the car = 50 mi/h
[tex] v_{i}[/tex]: is the initial speed of the car = 27 mi/h
[tex] \Delta t[/tex]: is the change in time = 5 seconds
The constant acceleration required is:
[tex] a = \frac{v_{f} - v_{i}}{\Delta t} [/tex]
[tex] a = \frac{50 \frac{mi}{h}*\frac{1 h}{3600 s}*\frac{5280 ft}{1 mi} - 27 \frac{mi}{h}*\frac{1 h}{3600 s}*\frac{5280 ft}{1 mi}}{5 s} [/tex]
[tex] a = 6.75 ft/s^{2} [/tex]
Therefore, the constant acceleration required is 6.75 ft/s².
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Determine the velocity (in m/s) of the object during the last six seconds. Include a numerical answer accurate to the second decimal place. If negative, include the - sign
Answer:
0.33 m/s
Explanation:
The graph given is that of distance against time. The slope of such a graph gives the velocity of the object while travelling.
In this graph the change in distance for the last 6 seconds is given by;
The distance is : 10-8 = 2 m
The time in seconds is: 6 s
The velocity = 2/6 = 1/3 m/s
The velocity expressed in decimal form is : 0.33 m/s
Which one do I press guys?
Answer:
The Nucleus...
Explanation:
E
