Answer:
unbalanced and contact
Explanation:
The two terms that bests describes the net force acting on the sled is an unbalanced and contact force.
Force is a pull or push on a body. We have two main types of forces. Contact forces acts on a body and they must be in touch with it. An example is frictional force.
Non - contact forces acts based on force field and they are not in contact with the body. An example is gravitational force.
Since the sled is sliding down the road, it is changing velocity and so, unbalanced forces are acting on it.Therefore, the force on the wagon is an unbalanced and contact force.
Rock A is thrown horizontally off a cliff with a velocity of 20 m/s. The rock lands
60 m from the base of the cliff. Refer to the information and diagram shown
below. A second rock (Rock B) is dropped from the same height from which Rock
A was thrown. If both rocks are released simultaneously, which rock will strike the
ground first? *
Answer:
They will strike at the same time
Explanation:
Both will hit the ground at the same time.
What is total energy ?
Total energy of any object under consideration is the sum of potential energy (P.E) and kinetic energy (K.E) and is constant throughout the motion.
Here, it is given that the both rocks are falling from same height and
there is no initial velocity in vertical direction for both rocks
The only external force that is applied on them is gravitation force which is also constant in both cases.
Therefore, they will hit the ground at the same time considering air resistant and all others factors neglected.
Learn more about "Energy" here:
https://brainly.in/question/49548283
#SPJ6
What type of circuit is seen in this picture?
-Open
-Parallel
-Series
-AC
it's a. open circuit
Answer:
A) Open
Explanation:
Which element accumulates in the environment due to the use of
fertilizers?
A. oxygen
B. hydrogen
C. nitrogen
D. carbon
To Find :
Which element accumulates in the environment due to the use of fertilizers.
Solution :
Most of the fertilizers used in daily practice are nitrogen fertilizers .
When soil became waterlogged, soil organisms take the oxygen they need from nitrates, leaving the nitrogen in a gaseous form which escapes into the air.
Also, nitrogen is very stable and did not participate in most of the reactions.
So, nitrogen is accumulates in the environment .
Therefore, option C. is correct.
What is the mass of 0.48 mol of cadmium, cd in grams.
Answer:
53.95g
Explanation:
Given parameters:
Number of moles = 0.48mol
Unknown:
Mass of cadmium = ?
Solution:
The number of moles, molar mass and mass of the atom is related by the expression;
Mass of Cd = number of moles x molar mass
Molar mass of Cd = 112.4g/mol
Now;
Mass of Cd = 0.48 x 112.4 = 53.95g
String 1 is pulled on with a force of 50 N to the right. String 1 is attached to a mass of 20 kg on a level surface. String 2 connects the 20 kg mass to the second mass of 40 kg. Friction can be ignored. Find the tension force in string 2.
The masses are pulled in only one dimension, so we can ignore the forces acting in the vertical direction. We take the positive direction to be to the right.
For the 20 kg mass, the net force is
∑ F₁ = 50 N - T
where T is the tension in string 2.
For the 40 kg mass, the net force is
∑ F₂ = T
For both masses combined, the net force is
∑ F = 50 N
Use Newton's second law to compute the acceleration of the system:
50 N = (20 kg + 40 kg) a
a = (50 N) / (60 kg) ≈ 0.83 m/s²
Then use the net force equation for the 40 kg mass to compute the tension:
T = (40 kg) a ≈ 33 N
Please do all of i will give you brainlest and thanks to best answer plz do it right
Answer:
the answer is B
Explanation:
because i had this question in 8th grade
What is the magnitude of the instantaneous velocity (speed) of a freely falling object 25 s after it is released from a position of rest? Consider the acceleration of gravity to be 10m/s^2. Answer in unit of m/s
Answer:
The instantaneous velocity of the object is 250 m/s
Explanation:
Given;
time of the object motion, t = 25 s
acceleration due to gravity, g = 10 m/s²
The instantaneous velocity of the object is given as;
v = u + gt
where;
u is the initial velocity of the object = 0 (since it was released from rest)
Substitute the givens;
v = 0 + (10 x 25)
v = 250 m/s
Therefore, the instantaneous velocity of the object is 250 m/s
A pendulum swings back and forth. Is there energy in the system?
Answer:
yes
Explanation:
A pendulum should be able to contain enough energy to constantly be moving
A phase diagram assumes______
is kept constant.
Odensity
O volume
O temperature
O pressure
PLEASE HELP
1. why is weathering an exogenic process?
2. state two factors that cause weathering.
Answer:
1. Weathering is the general term applied to the combined action of all processes that cause rock to disintegrate physically and decompose chemically because of exposure near the Earth's surface through the elements of “weather” such as temperature, rainfall, frost, fog and ice.
2. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.
What force would need to be added downwards to have this 2kg object accelerate at
5 m/s/s downward and 1.5 m/s/s to the left?
Answer:
Explanation:
what is the oxidation number of the noble gases such as xenon and argon?
which object is completely opaque?
a:wooden spoon
b: drinking glass
c: wax paper
d:window
Answer:
a
Explanation:
light can not pass through it completely
Find the mass of a bowling ball that has an acceleration of 95m/s2 and a force 25N.
Answer:
Force = Mass * Acceleration
25 = Mass * 95
Mass = 95/25
Mass = 3.8 kg
Answer:
I hope the above pic will help you
I will always help you understanding your assingments
have a great day #Captainpower:)
______ of gravity is always 9.8 m/s/s
Answer:
acceleration
Explanation:
Answer: Acceleration of gravity is always 9.8 m/s/s
Explanation:
heyyyy! can some tell me if im right?
Answer:
no the answers r b, d, r, and f
Explanation:
What is reflection of light and its laws ?
Answer:
So, put simply, reflection is light bouncing off surfaces. The law of reflection determines how the light bounces off a surface. The law of reflection states that the angle of incidence is equal to the angle of reflection.
Hope this helps..The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. (By convention, all angles in geometrical optics are measured with respect to the normal to the surface that is, to a line perpendicular to the surface.
1) A rock was thrown horizontally from a 500.0 m high cliff. It
strikes the ground 100.0 m from the base of the cliff. At
what speed was it thrown?
Answer:
twenty two miles per hour
22. Sweat glands are found in human skin. These glands release sweat to help the body cool during exercise. What would MOST LIKELY happen during exercise if a person's sweat glands were NOT functioning?
A. The body would become overheated.
B. More sweat would be released.
C. The upper layer of skin would become thicker.
D. More hair would grow on skin.
Answer:
A.
Explanation:
all i know is that sweat keeps your body from overheating
please help me asdrtyuio
Answer:
9. The Sun's Gravity
10. The core is the densest layer
(AKS 2b3) A football player throws the ball at a 45 degree angle. Which of the
following are possible values for the given variables at the highest point of the
projectile's trajectory?
Answer:
obtuse maybe i really dont understand what you are saying.
Explanation:
What is the weight of the body under the influence of a force of 10N reaches a speed of 1.5 m / s in 3s?
Answer:
Explanation:
F=ma
F=10N
A=v-u upon t
=1.5-0 upon 3
=0.5m per second squared
Then do force divided by. Accelaration and multiply by gravity.
what is the acceleration of a 50kg object with 100 newtons force applied to it
If you run at 8.50m/s for 8.00 minutes, how far will you go?
480 m
68.0 m
4080 m
56.5 m
Answer:
68
Explanation:
because 8.50 x 8 is 68
HELP ASAP!!! How many electrons fit into each electron shell?
K
L
M
N
Answer:
k = 2
L = 8
M = 18
N = 32
plz mark me as a brainelist
A change in the structure of DNA in the egg cell could result in a
Answer: A mutation
Explanation: because it changes the DNA sequence of a gene
What do you think menas to be Physically fit.
Answer:
consistently working out and eating healthy i guess
Explanation:
Answer:
To have a strong body (not only visible muscles). Physically fit is to eat well also. Eat healthy more! Your body might not be packin, but it sure is strong!
Explanation:
Hope this Helps!
Have a great day!
:)
HELP!
A position-time graph is shown below: (2 points)
Which statement accurately describes the speed of the object in the graph above over the four seconds?
O
Speed is increasing
Speed is constant.
Speed is decreasing.
Object is at rest.
Answer:
speed is increasing.
this is because the graph has a positive slope (due to it going up ), if it were decreasing, the graph would be going down
The speed of the object in the graph over the four seconds is increasing.
What is speed?Speed is distance travelled by an object in unit time. A distance-time graph, also known as a distance-travel graph, is a graph that shows how an object's distance changes over time.A speed-time graph, often known as a speed curve, is a graph that shows how an object's speed changes over time.
Examining the speed-time and distance-time graphs for an entity that is at rest when time is zero and does not change speed will be our first step. The ensuing figure given in the question.
Given that in the question the graph has a positive slope as the line in graph is going up , if it were decreasing, the graph would be going down from this we conclude that speed of the object in the graph over the four seconds is increasing.
To learn more about speed refer to the link:
brainly.com/question/28224010
#SPJ2
plz do it all i will give brainlest and thanks to best answer do it right plz
Answer:
D: 8
Explanation:
That's where the ovary is located in the flower.
12. How many grams of beryllium are needed to produce 36.0 g of hydrogen? (Assume an excess of water.)
Be(s) + 2H, O() → Be(OH)2 (aq) +H,(g)
a
4.00 g
b. 36.0 g
c. 162 g
d 324 g
Answer:
Answer is: 162 g of beryllium.
Chemical reaction: Be + 2H₂O → Be(OH)₂ + H₂.
m(H₂) = 36,0 g.
m(Be) = ?
n(H₂) = m(H₂) ÷ M(H₂)
n(H₂) = 36,0 g ÷ 2 g/mol = 18 mol.
from reaction: n(Be) : n(H₂) = 1 : 1.
n(Be) = n(H₂) = 18 mol.
m(Be) = n(Be) · M(Be).
n(Be) = 18 mol · 9 g/mol = 162 g.
Answer:
Answer is: 162 g of beryllium.
Chemical reaction: Be + 2H₂O → Be(OH)₂ + H₂.
m(H₂) = 36,0 g.
m(Be) = ?
n(H₂) = m(H₂) ÷ M(H₂)
n(H₂) = 36,0 g ÷ 2 g/mol = 18 mol.
from reaction: n(Be) : n(H₂) = 1 : 1.
n(Be) = n(H₂) = 18 mol.
m(Be) = n(Be) · M(Be).
n(Be) = 18 mol · 9 g/mol = 162 g.
