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
julia-pushkina [17]
3 years ago
8

A vehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road

Physics
2 answers:
Solnce55 [7]3 years ago
6 0
What's the question?

Tresset [83]3 years ago
3 0

Answer:

a = 3 m/s/s

Explanation:

Acceleration is defined as the rate of change in velocity

so we will have

a = \frac{v_f - v_i}{t}

so here we have

v_f = 30 m/s

v_i = 0

\Delta t = 10 s

now we have

a = \frac{30 - 0}{10}

a = 3 m/s^2

You might be interested in
A baseball (m=140g) traveling 32m/s moves a fielders
posledela

Answer:

Average force, F = 286.72 N

Explanation:

Given that,

Mass of the baseball, m = 140 g = 0.14 kg

Speed of the ball, v = 32 m/s

Distance, h = 25 cm = 0.25 m

We need to find the average  force exerted by the ball on the glove. It is solved using the conservation of energy as :

\dfrac{1}{2}mv^2=mgh

F = mg

\dfrac{1}{2}mv^2=Fh

F=\dfrac{mv^2}{2h}

F=\dfrac{0.14\times (32)^2}{2\times 0.25}

F = 286.72 N

So, the average force exerted by the ball on the glove is 286.72 N. Hence, this is the required solution.

7 0
3 years ago
• List four uses of the concave mirror.<br> State five uses of lenses in everyday activities
Zina [86]
FOUR USES OF CONCAVE MIRROR:Satellite dishes,headlights of a car, telescopes used for astronomical studies, and shaving mirrors because of there curved and reflective surface.

FIVE USES OF LENSES: Camera lens ,microscopes ,magnifying glass,eyeglasses,projector
6 0
3 years ago
HELP ASAP
amid [387]

Answer:

3200 has the fewest number of sig figs

Explanation:

sorry i was late

7 0
3 years ago
PLEASE HELP MEEEEEE!!!!!!!!!!!!!!!!!!
Simora [160]
You would need to freeze it in a freezer. Hope this helps if it does could I have brainlist thanks
5 0
3 years ago
Read 2 more answers
I need help pls now ​plleeeeeeeeaaassseeeee
GrogVix [38]

Answer:

r =  \frac{v}{i}  = v = ri \\  i =  \frac{v}{r}

4 0
3 years ago
Other questions:
  • 4. A tankful of liquid has a volume<br>of 0.2m3. What is the volume in (a)<br>lities (b) cm3 (c)ml​
    6·1 answer
  • A cart is pulled horizontally with a 156.6 N force to the right at a 67 degree angle with respect to the ground. The cart is mov
    15·1 answer
  • A laser beam enters a 12.0 cm thick glass window at an angle of 33.0° from the normal. The index of refraction of the glass is 1
    12·1 answer
  • You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.8m above the ground, it
    6·1 answer
  • Van finds a metamorphic rock as he is exploring a small ravine near his house. Metamorphic rock is a type of rock that has gone
    15·2 answers
  • Anissa slides down a playground slide sloped at 25o. The coefficient of kinetic friction between Anissa and the slide is 0.15. I
    12·1 answer
  • Which of these objects has memetic energy
    12·1 answer
  • NEED HELP HELP HELP WILL GIVE BRAINLIST PLEASE
    9·1 answer
  • A 100-watt lightbulb radiates energy at a rate of 100 J/s. (The watt, a unit of power, or energy over time, is defined as 1 J/s.
    15·1 answer
  • The mean free path is the average distance traveled by a particle between collisions with other particles. Calculate the mean fr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!