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
Murljashka [212]
3 years ago
8

This is for physics, i need help fast!!

Physics
1 answer:
jarptica [38.1K]3 years ago
7 0
Speed = distance / time
S= 40 000m / 5400s
S= 7.41m/s
You might be interested in
What is the potential energy of a 5kg rock that is 7m high on a hill
Goryan [66]

Explanation:

Gravitational potential energy = mgh = (5)(9.81)(7) = 343.35J.

4 0
3 years ago
A projectile is shot at an angle 45 degrees to the horizontalnear the surface of the earth but in the absence of air resistance.
ivann1987 [24]

Answer:

v₂ = 176.24 m/s

Explanation:

given,

angle of projectile = 45°

speed = v₁ = 150 m/s

for second trail

speed = v₂ = ?

angle of projectile = 37°

maximum height attained formula,

H_{max}= \dfrac{v^2 sin^2(\theta)}{g}

now,

H_{max}= \dfrac{v_1^2 sin^2(\theta_1)}{g}

H_{max}= \dfrac{v_2^2 sin^2(\theta_2)}{g}

now, equating both the equations

\dfrac{v_2^2}{v_1^2}=\dfrac{sin^2(\theta_1)}{sin^2(\theta_2)}

\dfrac{v_2^2}{150^2}=\dfrac{sin^2(45^0)}{sin^2(37^0)}

   v₂² = 31061.79

   v₂ = 176.24 m/s

velocity of projectile would be equal to v₂ = 176.24 m/s

8 0
3 years ago
What is the SPEED of a ball that travels 120 m in 6s?
AVprozaik [17]

Answer:

20m/second

Explanation:

The reason the answer is 20m/second is because to find the speed of the ball  in this question you have to divide the distance over the time giving you the result of 20m/second

7 0
3 years ago
As you heat a steak on a grill, what kind of energy are you increasing in the steak?
katrin2010 [14]
The correct answer to the question above is Thermal Energy. As you heat a steak on a grill, the kind of energy that you are increasing is Thermal Energy. Thermal energy is the energy that come from heat, since you are you grilling the steak which means there is fire underneath, it has thermal energy. 
8 0
3 years ago
Why do atoms have an overall neutral charge?
Levart [38]
Https://www.google.com/search?q=Why+do+atoms+have+an+overall+neutral+charge%3F&oq=Why+do+atoms+have+...

Neutrons are no exception. So, if an atom<span> has equal numbers of electrons and protons, the </span>charges<span> cancel each other out and the </span>atom<span> has a </span>neutral charge<span>.
</span>
4 0
3 years ago
Other questions:
  • The Moon and Earth rotate about their common center of mass, which is located about RcM 4700 km from the center of Earth. (This
    7·1 answer
  • The words bin and bean. rot and rat are examples of (blank)
    10·1 answer
  • A 330 μf capacitor is connected in series with a 120 ohm resistor. what is the time constant for the circuit?
    14·1 answer
  • Wat does gas mean in science
    15·2 answers
  • Help!! I’ll give brainliest!! Which person will hear the highest pitch?
    10·2 answers
  • Which pair of quantities represent scalar quantities, and how are they different from vector quantities?
    11·1 answer
  • A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. it has an electr
    10·1 answer
  • A rocket travels 600m while being accelerated uniformly from rest at a rate
    5·1 answer
  • Is the substance above an element, compound or mixture?
    6·2 answers
  • A descent vehicle landing on the moon has
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!