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
Rasek [7]
3 years ago
15

Which phrase describes a scientific law?

Physics
2 answers:
Y_Kistochka [10]3 years ago
8 0

Answer: A. A statement that matter cannot be created or destroyed.

Explanation:

Apex

blagie [28]3 years ago
3 0

Answer:

C- An explanation for why matter cannot be created or destroyed

Explanation:

You might be interested in
What is the squirrels escape velocity in mph if the squirrel accelerates at a constant 1.5 m/s squared from rest for 2.5s
Zina [86]

Answer:

3.75 m/s

Explanation:

From the question given above, the following data were obtained:

Acceleration (a) = 1.5 m/s²

Initial velocity (u) = 0 m/s

Time (t) = 2.5 s

Final velocity (v) =?

a = (v – u) / t

1.5 = (v – 0) / 2.5

1.5 = v / 2.5

Cross multiply

v = 1.5 × 2.5

v = 3.75 m/s

Hence, the escape velocity of the squirrel is 3.75 m/s

7 0
3 years ago
Compare and contrast the average kinetic energy of 0.5 L of coffee at 34ÁC,
Andre45 [30]
Compared to coffee at room temperature, the molecules of the coffee at 34°C will be moving faster and colliding with one another more frequently.
6 0
3 years ago
A 65.0 kg ice skater standing on frictionless ice throws a 0.15 kg snowball horizontally at a speed of 32.0 m/s. What is the vel
spin [16.1K]

Answer:

(d) 0.07 m/s

Explanation:

Given Data

Snowball mass m₁=0.15 kg

Ice skater mass m₂=65.0 kg

Snowball velocity v₁=32.0 m/s

To find

Velocity of Skater v₂=?

Solution

From law of conservation of momentum

m_{1}v_{1}=m_{2}v_{2}\\  v_{2}=\frac{m_{1}v_{1}}{m_{2}}\\ v_{2}=\frac{(0.15kg)(32.0m/s)}{65.0kg}\\ v_{2}=0.0738m/s\\or\\v_{2}=0.07 m/s

So Option d is correct one

5 0
3 years ago
If you have to apply 40 N of force to a crowbar to lift a rock that weighs 400 N, what is the actual mechanical advantage of the
Sauron [17]
The AMA is calculated as:
AMA = force obtained / force applied
AMA = 400 / 40
AMA = 10
6 0
3 years ago
Read 2 more answers
Describe, in as much detail as you can, how the energy
GalinKa [24]

Answer:

As a type of thermal power station, a coal-fired power station converts chemical energy stored in coal successively into thermal energy, mechanical energy and, finally, electrical energy. The coal is usually pulverized and then burned in a pulverized coal-fired boiler.Coal-fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity.

8 0
3 years ago
Other questions:
  • Does spilled milk have higher or lower entropy
    6·1 answer
  • What three categories can every living thing in a forest ecosystem be sorted into
    7·1 answer
  • If the acceleration of an object is zero at some instant in time, what can be said about its velocity at that time? 1. It is neg
    11·1 answer
  • What is the momentum of a 10kg ball moving at a velocity of 4m/s east?​
    13·1 answer
  • Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P and volume V satisfy the eq
    10·1 answer
  • How do objects at rest and in motion respond in the presence of an external, unbalanced force?
    13·1 answer
  • The time it takes for a dragster to cross the finish line is unknown. The dragster accelerates from rest at 26 m/s2 for a quarte
    14·1 answer
  • A storage tank contains a liquid at depth y where y=0 when the tank is half full. liquid is withdrawn at a constant flow rate q
    10·1 answer
  • Is the force of gravity that attracts my body to the Earth related to the force of gravity between the planets and the Sun
    8·1 answer
  • I need help with this pls
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!