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
LuckyWell [14K]
3 years ago
8

Could someone help me on #7?

Physics
1 answer:
ozzi3 years ago
8 0

i would sat C then the impact is weaker

You might be interested in
The Cajun Cliffhanger at Great AMerica is a ride in which occupants line the perimeter of a cylinder and spin in a circle at a h
12345 [234]

Explanation:

Centripetal Force is the force that keeps the object's rotation in a circular path and it's always directed towards the center of rotation. Mathematically, it is given as,

F_{c} = \frac{mv^{2} }{r}

From this equation it can be concluded that the centripetal force is proportional to the product of mass and the square of velocity. It is inversely proportional to the object's distance from the center.

Now in the above mentioned case, when the cylinder begins spinning very rapidly and it's speed becomes double. Then by applying the above equation we conclude that " the force will be increased four times if the speed is doubled as it is proportional to square of speed."

5 0
3 years ago
What kind of substance changes its shape but not its volume when it is placed in a new container
Hitman42 [59]

Answer:

liquid.

Explanation:

That is almost the definition of a liquid. So the answer is a liquid.

6 0
3 years ago
How to calculate percent error
olga_2 [115]

Answer:

Steps to Calculate the Percent Error

Subtract the accepted value from the experimental value.

Take the absolute value of step 1.

Divide that answer by the accepted value.

Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

Explanation:

3 0
3 years ago
A car starts from rest and after 20 seconds it's velocity becomes 108km find the acceleration of the car
andre [41]

Answer:

1.5 km/s²

Explanation:

Given that:

a car starts from rest; it means the initial velocity (u) = 0 km/hr = 0 m/s

after time (t) = 20 seconds

the final velocity = 108 km/hr = 30 m/s

The acceleration (a) of the car can be determined by using the formula:

a = \dfrac{v-u}{t}

a = \dfrac{30\  m/s -0 \ m/s}{20 \ s}

a = \dfrac{30 \  m/s}{20 \ s}

a = 1.5 km/s²

7 0
3 years ago
How does a recessive allele “show up” to be seen?
Cloud [144]

Answer:

Recessive alleles only show their effect if the individual has two copies of the allele.  

Explanation:

Dominant and Recessive Alleles If your allele pair is FF or Ff, you will have freckles. The only way you can escape a freckled face is to inherit the recessive gene from each parent, giving you the ff allele pair. In general, recessive alleles show up in your phenotype only if you have two of them.

7 0
3 years ago
Other questions:
  • If one star has a temperature of 5200 K and another star has a temperature of 7900 K, how much more energy per second will the h
    10·1 answer
  • Albert is on Earth and measures the speed of light from the sun as 3 E8 m/s. He then gets in a spaceship and speed toward the su
    12·2 answers
  • A 13-KG SLED IS MOVING AT A SPEED OF 3.0M/S. AT WHICH OF THE FOLLOWING SPEEDS WILL THE SLED HAVE TWICE AS MUCH KINETIC ENERGY
    13·1 answer
  • Why are the cells produced by meiosis considered gametes?
    15·2 answers
  • 2. What mechanism would you use to safely capture emissions?
    8·1 answer
  • What is the potential difference VB – VA when the I= 1.5 A in the circuit segment below?​
    7·1 answer
  • a metal of work function 1.8eV is illuminated by light of wavelength 3.0x*10-7,calculate the maximum kinetic energy
    15·1 answer
  • What is it called when a solid goes to a gas?
    5·2 answers
  • Which angle is the angle of reflection? (5 points)<br> 01<br> O 2<br> O 3
    10·1 answer
  • while riding a roller coaster, a girl drops an object. the roller coaster was rising vertically at a velocity of 11.0m/s and was
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!