Answer:
500
Explanation:
30*300*5=500 so leuz multiple it by 2 the answer I'd
An object is travelling 15 m/s. How long does it take for it to go 75 m?
Answer:
5 seconds
Explanation:
A glass falls from a table top and smashes on the floor 0.6 seconds later. How high is the table?
Equations that can be used
Vv=gt, dv=1/2gt^2, t=2d/g.
Answer:
1.8 m
Explanation:
Given: Glass falls from a table, smashes 0.6 seconds later
To find: How high a table is
Formula: Vv=gt, dv=1/2gt^2, t=2d/g
Solution: A table's height is measured from the top of the edge down to the floor. The tables are shown both have a height of 30 inches, which is common for many tables.
Data
t = 0.6sg = 9.81 m/s²d = ?Equation
d = [tex]\frac{1}{2}[/tex][tex]gt[/tex]²Math & Units
d = 4.905 (0.6²)d = 442.676Hence the table is 1.8 m high
1. Oh no! Your car breaks down on the highway, and you have to push the car to the side of the road. If your car is 400 kg and you push
with a force of 200 N, what is the car's acceleration?
O 2 m/s2
O 8.0 x 104 m/s2
O 0.5 m/s2
Oom/?
What is the minimum force required to increase the energy of a car by 69 J over a distance of 42 m? Assume the force is constant.
Group of answer choices
0.61 N
69 N
2900 N
1.6 N
110 N
A 12 kg rock that is moving at 5.1 m/s in the +x direction experiences a net impulse of 98 N-m in the same direction. What is its final momentum?
The final momentum will be 159.2 kg m/sec. The change in the momentum is the difference of the final and the initial momentum.
What is momentum?The momentum is defined as the product of mass and the velocity of the body. It is denoted by the letter P. It occurs due to the applied force. Its unit is Kg m/s.
The given data in the problem is;
The mass of rock is,12 kg
The velocity is,v= 5.1 m/s
The momentum is P
The momentum is found as;
[tex]\rm P_i = mv \\\\ \rm P_i = 12 \times 5.1 \\\\ P_i=61.2 \ kg m/sec[/tex]
From Newtons second law, impulse is equal to the change in the momentum.
[tex]\rm I =\triangle P \\\\ \rm I =P_f-P_i \\\\ \rm 98 = P_f-61.2 \\\\ P_f =159.2 \ Kg m/sec[/tex]
Hence, the final momentum will be 159.2 kg m/sec
To learn more about the momentum, refer to the link;
https://brainly.com/question/4956182
#SPJ2
Simplify 45÷3+2×8-12+42
Answer:
Explanation is in the picture and the answer is 16
Un atleta tiene en un instante dado una velocidad de 4 m/s. Si a partir de ese instante y durante 2 s adquiere un MRUA con una aceleración de 3 m/s2. Calcula la velocidad que alcanza al cabo de esos 2 s.
Answer:
Velocidad final, V = 8 m/s
Explanation:
Dados los siguientes datos;
Velocidad inicial, u = 4 m/s
Aceleración, a = 2 m/s²
Tiempo, t = 2 segundos
Para encontrar la velocidad final (v), usaríamos la primera ecuación de movimiento;
V = u + at
Sustituyendo en la fórmula, tenemos;
V = 4 + 2*2
V = 4 + 4
Velocidad final, V = 8 m/s
After the collision, car 1 has a final velocity of 6m/s south. What is the final velocity of car2?
a) 35m/s north
b) 35m/s south
c) 81 m/s north
d) 81 m/s south
in the circuit diagram below on voltmeter V2 is 12V and the reading on ammeter A1 is 2A
calculate the amount of charge that flows through ammeter A1 in 120 second
Answer:
q = 240 C
Explanation:
The current passing through a circuit is defined as the amount of charge passing through that circuit per unit of time. Hence, the current can be calculated through the following formula:
[tex]I = \frac{q}{t}\\\\q = It[/tex]
where,
q = total amount of charge = ?
I = current = 2 A
t = time = 120 s
Therefore,
[tex]q = (2\ A)(120\ s)\\[/tex]
q = 240 C
Please answer correctly
No trolling or links, please
Answer: Wave a the first answer is right
Brainliest.
Explanation:
How does the strength of a magnetic field around a wire vary?
Answer:
By pointing one's right thumb along the direction of the current, the direction of the magnetic field can by found by curving one's fingers around the wire. The strength of the magnetic field depends on the current I in the wire and r, the distance from the wire.
If a chemical reaction has a AH value of -125 kJ, it would be considered what?
A. an exothermic reaction
B. a reaction that absorbs energy
C. an endothermic reaction
D. A reaction that probably gets cold
exothermic
Explanation:
negative means it's losing energy
hence, the force needed to accelerate the 1000kg car by 3m/s2 is 3000N
Answer:
i'll answer your question but follow me first
1. Find the current in a circuit where the voltage is 9 volts and the resistance is 4 ohms.
a. 36 amps
b. 2.25 amps
c. 2 amps
d. 18 amps
2. Find the current in a circuit where the voltage is 120 volts and the resistance is 4 ohms.
a. 3 amps
b. 240 amps
c. 30 amps
d. 480 amps
3. Find the voltage in a circuit where the current is 10 amps and the resistance is 12 ohms.
a. 1.2 volts
b. 60 volts
c. 0.83 volts
d. 120 volts
4. Find the voltage in a circuit where the current is 3 amps and the resistance is 3 ohms.
a. 1 volt
b. 9 volts
c. 0 volts
d. 120 volts
5. Find the resistance in a circuit where the current is 10 amps and the voltage is 120 volts.
a. 130 ohms
b. 1200 ohms
c. 12 ohms
d. 110 ohms
6. Find the resistance in a circuit where the current is 20 amps and the voltage is 120 volts.
a. 6 ohms
b. 12 ohms
c. 240 ohms
d. 100 ohms
what does heat trapped by pollution cause?
A. Acid rain
B. Decomposition
C. Greenhouse effect
Answer:
C. Greenhouse Effect
Explanation:
The greenhouse effect is caused by heat trapping pollution in the atmosphere.
write your opinion about achievement made by during rana rule
Answer:
Your opinion about achievement made by during rana rule
Explanation:
April Fools !
The ratio of the speed of light in a medium to the speed of light in a vacuum
is called its:
A. angle of incidence
B. Snell's Law
C. angle of refraction
D. refractive index
Answer:D.Refractive Indez
Explanation:
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".
You're going for "refractive index", but you've got the ratio flipped over.
if a car has 3000 j of kinetic energy,how much PE does it have when it reached the top of a hill
Answer:
3000 ke
Explanation:
How does magnetic compass help to identify directions
Answer:
By the help of magnetic field of the earth
Explanation:
Compasses, also known as magnetic compass, help us primarily in navigating and determine position on the globe. The planet Earth has its own magnetosphere or magnetic field that is close with that of a magnetic poles, and this is how compass works. The compass needle aims north and south as it happens to coincide with the Magnetosphere or magnetic field.
PLZZZZ HELPPPPPP MEEEEEE!!!!!! ILL GIVE 20 POINTS AND BRAINLIEST!!!
:'(
I am desperate guys.
Answer:
c.
Explanation:
In positron emission, also called positive beta decay (β+-decay), a proton in the parent nucleus decays into a neutron that remains in the daughter nucleus, and the nucleus emits a neutrino and a positron, which is a positive particle like an ordinary electron in mass but of opposite charge.
Does this help? Sorry it's wordy that's just how my teachers taught me :'(
what type of beetle is this?
A 60 Watt bulb runs for 60 s. How much work does it do?
Write 3 rules that describe the possible behaviors that occur when objects with different charges are brought close together
Explanation:
1. attract
2.repel
3. no effect
If you walk for 1.5 hours at an average speed of 4 miles/hr. How far will you have walked?
That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.
Answer:
The answer is "[tex]0.13562748[/tex]"
Explanation:
Please find the complete question in the attached file.
Using formula:
[tex]\bold{U_s=\frac{v^2}{rg}}[/tex]
Given:
[tex]r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}[/tex]
put the value into the above-given formula:
[tex]U_s= \frac{14.583^2}{160 \times 9.8}[/tex]
[tex]= \frac{212.663889}{1568}\\\\=0.13562748[/tex]
A car goes from a speed of 10m/s to 30m/s over 4s. If the car has a mass of 1000kg, How strong is the force pushing the car forward?
Answer:
i think ww
Explanation:
i think we need to calculate net force which is:
net force=m.a
..nf=1000kg×30m/s
therefore net force will be the answer you get whwn you multiply those two
A high diver dives off a platform and strikes the water 1.857 seconds later. Ignoring air resistance, how fast is he traveling as he strikes the water in m/s?
Answer:
The (vertical) speed of the driver as he strikes the water is approximately 18.22 m/s
Explanation:
From the parameters given in the question, we have;
The time after which the driver strikes the water after he drives off a platform, t = 1.857 s
Let 'v' represent the vertical speed of the driver
We can find the vertical speed of the vehicle as it strikes the water as follows;
v = u + g·t
Where;
v = The final vertical velocity of the driver
u = The initial vertical speed of the driver = 0 m/s
g = The acceleration due to gravity ≈ 9.81 m/s²
t = The time of motion = 1.857 seconds
Therefore, we have;
v = 0 + 9.81 m/s² × 1.857 s = 18.21717 m/s
Therefore;
The vertical speed of the driver as he strikes the water, v ≈ 18.22 m/s
When you use a microwave, what is the main way that heat is transferred?
1. radiation
2. convection
3.conduction
Answer:
the correct answer is 1. radiation
Two train cars with the same mass (30,000 kg) are traveling in the same direction when they collide.
Train Car A has a velocity of 10 m/s and Train Car B has a velocity of 5 m/s. What is their total
momentum after the collision? Make sure to show all your work and include proper units.
Answer:
25
Explanation:
I just did this
Why does steam at 100°c give severe burn than water at 100 c?
Explanation:
Steam will produce more severe burns than boiling of water because steam has more heat energy than water due to its latent heat of vaporisation and additionally latent heat of condensation. Steam and boiling water can exist at varing temperature but it is only correct to assume here that both are at same temperature.