Answer:
0.75kg into gram = 0.75 * 1000 = 750g
potential energy = mgh
potential energy = 750 * 10 * 0.35
potential energy = 2625 joules
To balance the forces on the box what direction must you push?
1- Right
2- Left
3- Down
4- Up
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
Keith has been using a software application for a year on his home computer. A new version of the application was recently released. Keith’s license has a term of two years and entitles Keith to upgrade his application to a new version within the term. What type of license does the application have?
Answer:
d license with maintenance .
Explanation:
just took this test. :)
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Answer: D) Earthquake
I hope this helps, and Happy Holidays! :)
Answer: Earthquakes
Explanation: Earthquakes impact rupture breaks in the ground, landslides, avalanches, fires, tsunamis, property damage, and loss of life.
This image shows flashlight beams reflecting off a mirror from
different angles. Based on the angles of reflection, choose all pairs of
light rays that correctly match incoming light beams with their
reflected light beams,
Question 2. Based on the image and the angles of reflection shown witch statement is true.
A) When a light ray strikes a mirror, it randomly scattered.
B) light is absorbed by mirrors and reflected directly upwards.
C) light travels in a straight line until lit strikes an object
D) light is reflected back to its source when it strikes an object
Hey I'm working on this test right now, did you ever get the answers?
A student exerts a 2N for on a wall. What is the magnitude of the force the wall exerts on the student?
Answer:
Fr = 2 [N]
Explanation:
To solve this problem we must use Newton's third law which tells us that the force applied on a body at rest is equal to the reaction force that acts in the opposite direction and with equal magnitude to the force applied.
Since the wall does not move when applying force, then it remains static (there is no movement)
We can use Newton's third law and say that the sum of the forces on the body is equal to zero. In this way, we propose the following equation.
∑F = 0
[tex]F-F_{r}=0[/tex]
where:
F = force = 2 [N]
Fr = reation force [N]
Therefore.
[tex]2-F_{r}=0\\F_{r}=2[N][/tex]
What are the names of the ions?
Answer:
Well for most of them you add -ide
Explanation:
Answer:
Here is your answer
hope it helps you
When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?
electrical and thermal
thermal and radiant
radiant and nuclear
nuclear and kinetic
hurry brainliest ill give 49 points
Answer:
Radiant and thermal
Explanation:
Electrical and thermal don't make sense because you are not using electricity to light the match. Radiant and nuclear is not right because you are not using nuclear energy to light the match. Nuclear and kinetic isn't right because you are using kinetic and you are not using nuclear energy.
Answer:
answer is B. thermal and radiant
Explanation:
just got it right on edge
What is the force of gravity between two objects that are 4.0 m apart? The mass of the first object is 0.25 kg and the mass of the second object is 0.65 kg
Answer:
6.77 x 10^-13 Newtons
Explanation:
using the formula [tex]F= \frac{GMm}{r^2}[/tex]
where G is the gravitation constant which is 6.673 x 10^-11 N m2/kg2
M = mass of the first object which is 0.25 kg
m = mass of the second object which is 0.65 kg
and r is the distance between the objects which is 4 metres
Plugging our values in:
[tex]F\:=\:\left(6.673x10^{-11}\right)\frac{\left(0.25\right)\left(0.65\right)}{4^2}[/tex]
F = 6.77 x 10^-13 N
What decibel level can cause hearing damage to begin
Answer: Noise above 70 dB can cause hearing damage
Explanation:
Answer:
The decibel level that starts to have hearing damage is 120 dB.
Explanation:
A child on the high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy?
options-
1. 400 joules
2. 3920 joules
3. 4 joules
How do ions help your brain?
PLEASEEEEE HELLLLLPPPPPPP
Answer:
A or B(the answers)
Explanation:
they seem like the most right
Answer:
I'm pretty sure it's b
Explanation:
What is the density of an object with a mass of 20 grams and a volume of 5 cm?
Answer:
4
Explanation:
Divide mass(m) by volume(v), you get density(D)
m/v=D
20/5=4
Find the displacement of the object moving at v= -2 m/s for t=5s
Answer:
d = - 10 [m]
Explanation:
We must remember that speed is defined as the relationship between the displacement in a given time. In this way, we can propose the following equation.
[tex]v = d/t[/tex]
where:
v = velocity = 2 [m/s]
d = displacement [m]
t = time = 5 [s]
Now replacing:
[tex]d=-5*2\\d=-10[m][/tex]
what is the kinetic energy of a 1 kilogram ball thrown into the air with an initial velocity of 30 m/s
Explanation:
KE = 1/2 MV ^2
KE = 1/2 * 1 * 30 ^2
KE= 1/2 * 1 * 900
KE = 450 kg m^2/ s^2
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Answer:
the above pic will help
I have done it in word
I hope it helps mate
mark me brainliest plsss
I will always help you understanding your assingments
have a great day
#Captainpower:)
Which principle states that the net electrical force on a specific charge is equal to the sum of the vector components of the charges applying forces on it?
angle principle
summation principle
superposition principle
vector principle
Answer:
C. The superposition principle
Explanation:
:)
Answer:
C
Explanation:
J took the test
How many significant figures in 0.00850
Answer:
5
Explanation:
Question 1 of 25
A bookcase has a mass of 37 kg. What is the weight of the bookcase?
Help please
answers
81.6 pounds rounded or just 81.571 if it needs to be exact
2. An 873 kg dragster accelerates at a rate of 44.6 m/s during a race.
a. What is the magnitude of the net force exerted on the dragster during this time?
Known (Given):
=
Unknown:
Fnet =
Equation:
Fret=ma (or m*a)
Solution:
Answer:
38,673.9NExplanation:
According to newton's second law:
Force = mass * acceleration
Given
Mass = 873kg
acceleration = 44.66m/s²
Magnitude of the force is expressed as;
F = ma
F = 873 * 44.6
F = 38,673.9N
Hence the magnitude of the net force exerted on the dragster during this time is 38,673.9N
Periodontal diseases in teeth and osteoarthritis are common problems that show up on skeletal remains.
O A. True
OB.
False
What is the relationship between the frequency and the wavelength of a wave?
Answer: The wavelength and frequency of light are closely related. The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength.
Explanation:
A 35kg cannonball sits at rest on a flat level surface. What is the normal force exerted on the cannon ball. Use -9.8 m/s2 for acceleration due to gravity.
A. -343N
B. 44.8N
C. 25.2N
D. 343N
Answer:
a) N = 343 [N]
Explanation:
We must remember Newton's third law, which tells us that the force acting on a body is equal to the normal reaction force of equal magnitude but acting in the opposite direction.
[tex]N=m*g[/tex]
where:
m = mass = 35 [kg]
g = gravity acceleration = 9.81 [m/s²]
[tex]N = 35*9.8\\N= 343 [N][/tex]
help it's for my civics class
ANSWER: D. Rule of Law
is the answer
d. rule of law
rule of law .
help me help me please please, please
new stars form from ?
List 5 occasions in real life when you want friction (motion to stop)
Answer:
*want my husband's mouth to stop moving
*when im driving my car and the light turns red
*i want the person pushing the buggy behind me to stop when I stop
*when I'm on the 16th floor at the Horseshoe Casino Hotel and the elevator keeps passing my floor... would love for it to stop and pick me up
*when Publisher's Clearing House is delivering my big fat check, I definitely want them to stop and hand it over:)
Write two forms of mechanical energy
Which two forces act over very small distances
Explanation:
There are three fundamental forces that act at a distance. They are gravitational, electromagnetic and nuclear forces.
hope it helps!
You push a 40 kg sled with a force of 50 N. If the friction force opposing the sled’s motion is 9 N, what is the acceleration of the sled? Show your work,
Answer:If the coefficient of kinetic friction (u) is 0.2, what ... The force of friction for a 7.5-kg object being pushed horizontally at a constant speed ... needed to start the box moving? ... An applied force of 21 N accelerates a 9.0-kg wagon at 2.0 m/s² along the ... 3N = p. 88.2 N. (u=0,034. 5. A sled of mass of 50.0 kg is pulled along a flat,