1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
2 years ago
13

7. What is the velocity of an object that has a mass of 4.5 kilograms and

Physics
1 answer:
labwork [276]2 years ago
7 0

Answer:

266.66 m/s

Explanation:

p=mv

1200=4.5v

v=266.66 m/s

You might be interested in
Using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before h
ASHA 777 [7]
If it starts from 0m/s...
s=?
u=0
a=-10
t=8
s=ut +1/2at^2
so s=(0×8)+ (0.5×-10×64)
s=0+(32×-10)
s=32×-10
s=-320metres
6 0
2 years ago
Help me pls its for my science class i need to show my work
Lostsunrise [7]

Answer:

P = 5880  J

Explanation:

Given that,

The mass of the block, m = 30 kg

The block is sitting at a height of 20 m.

The block will have gravitational potential energy. The formula for gravitational potential energy is given by :

P=mgh\\\\=30\times 9.8\times 20\\\\=5880\ J

So, the required potential energy is equal to 5880  J.

6 0
2 years ago
What is the answer for the question -6 + (-8) =
Vaselesa [24]
The answer is negative 14
6 0
3 years ago
Read 2 more answers
A 73-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops through a height of 1.60 m,
Gnesinka [82]

To solve this problem it is necessary to apply the concepts related to the Conservation of Energy, for which it is necessary that any decrease made through the potential energy, is equivalent to the gain given in the kinetic energy or vice versa.

Mathematically this can be expressed as

KE_i+PE_i = KE_f+PE_f

Since there is no final potential energy (the height is zero), and the initial potential energy is equivalent to the work done we have to

W = KE_f-KE_i-PE_i

W = \frac{1}{2}mv_f^2-\frac{1}{2}mv_i^2 -mgh

W =\frac{1}{2} m(v_f^2-v_i^2)-mgh

W= \frac{1}{2}(73)(8.5^2-1.6^2)-(73*9.8*1.6)

W= 1399.045J

W= 1.4kJ

Therefore the non-conservative work was done on the boy is 1.4kJ

4 0
2 years ago
Faraday's Law states how voltage can be increased or decreased in a system. True False
JulsSmile [24]
This is <span>false. </span>Faraday's Law <span>predicts how a magnetic field interacts with an electric circuit, producing an EMF</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is a hypothesis
    8·1 answer
  • A 500 μF capacitor is wired in series with a 5 V battery and a 20 kΩ resistor. What is the voltage across the capacitor after 20
    15·2 answers
  • What is the hardy-weinberg principle?
    12·1 answer
  • If the air pressure is doubled, the speed of sound
    12·1 answer
  • When in orbit, astronauts experience weightlessness what is this caused by?
    9·2 answers
  • Which is one property of silt soils?
    5·1 answer
  • What is the mechanical advantage of the screw shown below? O A. 14.1 O B. 2 O C. 12.6 O D. 8.2.​
    5·1 answer
  • What is the the outermon shell with elections!
    12·1 answer
  • A 100kg couch is being pushed with 196N of force. As it slides along the ground it experiences a coefficient of friction of 0.1.
    8·1 answer
  • Open the resistance in a wire simulation, adjust only the length of the resistor, what happens to resistor?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!