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
WARRIOR [948]
3 years ago
5

Denise is riding her bike and falls to the ground. During the collision, she hits both grass and cement.

Physics
1 answer:
irakobra [83]3 years ago
3 0

Answer:

Answer D: The grass extends the time of the collision.

Explanation:

You might be interested in
Loud of dust and gas in space is a(n) Blank Space __________.
madreJ [45]
A cloud in space that is composed of dust and gas is call a nebula. The word "nebula" is derived from the Latin word for "cloud," and nebulae in space are indeed large interstellar clouds made up of dust, hydrogen, helium and plasma.

6 0
3 years ago
Read 2 more answers
If the potential difference across the bulb in a camping lantern is 9.0 V, what is the
Gre4nikov [31]

Answer:

9V

Explanation:

The potential difference across the terminal as the same and thats because we are assuming that the source has no internal resistance.

Internal resistance are usually little resistances in the supply.

4 0
3 years ago
a lawn mower is pushed with a force of 50n. if the angle between the handle of the mower and the ground is 30°. why doesn't the
Mademuasel [1]

Answer:

IT doesnt push down because the lawnmower has wheels and the ground is hard

Explanation:

Branliest

5 0
3 years ago
a projectile is launched at an angle of 30 degrees and lands later at the same level. if it's initial speed is 50 m/s, solve for
Mrrafil [7]
using \: the \: formula \\ t = \frac{2u \sin( \alpha ) }{g} where \: u = initial \: speed \: \\ \alpha = angle \: of \: projection \\ g = acceleration \: due \: to \: gravity \\ \frac{2 \times 50 \times \sin(30) }{10} \\ \frac{100 \times 0.5}{10} = \frac{50}{10} = 5seconds

Maximum height
= (Usinα)^2/2g
(50*0.5)^2/20
25^2/20
625/20
=31.25metres
horizontal distance = Range= [U^2 * sin2α]/g
[50^2 * sin60]/10
2500 * 0.8660/10
2165/10=216.5metres
3 0
3 years ago
A moving car skids to a stop with the wheels locked across a level roadway. Of the forces listed, identify which act on the car.
Vesnalui [34]

Answer:

Normal, Gravity, Friction, and Air Resistance.

Explanation:

When a moving car skid to stop and its wheels are locked across, then the following forces will be applied on the car:

<u>Normal force:</u> It will act counter to gravity that pushes an object against a surface and acts perpendicular to the contact surface.

<u>Gravity:</u> Gravity force acts in each and every object having mass and it can not be avoidable. So, the gravity force will also apply to the car and attract it to the earth's surface.

<u>Friction: </u>Friction is a force that acts opposite to the motion and stops or slows motion. Friction will be applied to the car that will oppose the motion of the car and stop it.

<u>Air resistance:</u> air resistance is defined as the forces exerted by air that acts opposite to the relative motion of an object. Air resistance will also be applied to the car when it will skid to stop as we are always surrounded by the air.

Hence, the correct answers are "Normal, Gravity, Friction, and Air Resistance."

4 0
3 years ago
Other questions:
  • Josh starts at a position of x=0 meters at the left side of the front of the classroom. Over the course of the class he walks ba
    14·1 answer
  • Match the following vocabulary terms to their definitions. 1. density a proposed explanation for a scientific problem 2. matter
    13·2 answers
  • How much do you know about genetic engineering?
    9·1 answer
  • One has a frequency of 490 Hz and the other is 488 Hz. How many beats per second are heard?
    6·1 answer
  • According to Coulomb’s Law, the force between two charged objects is related to _____.
    6·1 answer
  • What is radioactivity
    12·1 answer
  • Critical mass depends on ___. Check all that apply.
    8·1 answer
  • The work done to lift a 3kg mass to a<br> height of 10 m is
    7·1 answer
  • An air conditioner operating at steady state maintains a dwelling at 70oF on a day when the outside temperature is 90oF. If the
    13·1 answer
  • Given that A+B=C and C is perpendicular to A. Further if |A|-|C|, then what is the angle.(note that this are vector)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!