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
Paraphin [41]
3 years ago
7

I have finals! pls help​

Physics
1 answer:
Jobisdone [24]3 years ago
8 0

(2). a = v/t

but v =s/t

a =s/t÷t

a=s/t×t

a=s/t²

a=220/5.21²

a=8.10m/s²

Explanation:

For the question 1, just imput the value of t into the equation

You might be interested in
A cosmic catastrophic event occurred that caused the tilt of the Earth's axis relative to its plane of orbit to increase from 23
Gnom [1K]

Answer: The elimination of seasonal variations

Explanation:

Since the cosmic catastrophic event which occurred led to the tilt of the Earth's axis relative to the plane of orbit to increase from 23.5° to 90°, the most obvious effect of this change would be the elimination of seasonal variations.

It should be noted that seasonal variation refers to the variation in a time series that's within a year which is repeated. The cause of seasonal variation can include rainfall, temperature, etc.

7 0
3 years ago
A bullet is fired horizontally from a 17.7 m high cliff at a speed of 482.0. What is the distance from the cliff that the bullet
Marysya12 [62]

Answer:

Horizontal distance=?m

Explanation:

Horizontal velocity,u=482ms⁻¹

Height of the cliff=17.7m

Horizontal distance,R=?

R=v×√2h/g

5 0
3 years ago
what sense can people use to detect infrared radiation? we can see it as red light, we can feel it as heat, we can hear it as a
Ad libitum [116K]
We can feel it as heat, using the nerve endings in our skins.

7 0
3 years ago
Read 2 more answers
This is the material in which a mechanical wave travels.
Lemur [1.5K]
Medium is the material in which a mechanical wave travels.
6 0
3 years ago
Read 2 more answers
What is Icm, the moment of inertia of the disk around its center of mass? You should know this formula well.
kirill115 [55]

Answer:

I_{cm}=\frac{MR^{2}}{2}

Explanation:

First at all let's understand what is moment of inertia (I). The moment of inertia of a body is the rotational analog of mass in linear motion, this is, it determines the force we should apply to the body to acquire a specific angular acceleration. But in the rotational case we should specify about what point we are going to rotate an object so always the moment of inertia is defined respect to an arbitrary axis. It's usual to use the center of mass as an axis of rotation, because it's an unique point where we can assume all the mass of the object is concentrated.The moment of inertia respect of an axis that passes through the center of mass is denoted I_{cm}.

Now, if the disk you're talking about has uniform density the center of mass is exactly at the geometrical center of the disk, and the moment of inertia of a disk as that is:

I_{cm}=\frac{MR^{2}}{2}

6 0
3 years ago
Other questions:
  • Differences between concave and convex meniscus​
    6·2 answers
  • Technician a says multiple discharge ignition system fires the spark plug during each of the engine's four cycle strokes. Techni
    7·1 answer
  • g An object with mass 1kg travels at 3 m/s and collides with a stationary object whose mass is 0.5kg. The two objects stick toge
    12·1 answer
  • Notice that in each conversion factor the numerator equals the denominator when units are taken into account. A common error in
    8·1 answer
  • Why does a siren have a lower pitch as it moves away from you? A The period of the sound wave is decreased B The amplitude of th
    15·2 answers
  • Akbar and Lucia apply opposing forces on a
    5·1 answer
  • A 0.76-kg block is hung from and stretches a spring that is attached to the ceiling. A second block is attached to the first one
    15·1 answer
  • I need help ASAP
    12·1 answer
  • Motion with constant acceleration CER lab report <br><br> Can someone help!!
    14·1 answer
  • A 12 V battery is connected to a resistor, a light bulb, and a buzzer. What are the energy conversions that occur in the circuit
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!