PHYSICS HIGH SCHOOL

How much force is needed to accelerate a 3kg skateboard at 5m/s2

Answers

Answer 1
Answer:

F = ma

F = 3*5

F = 15 N

Hope it helps :)
Answer 2
Answer:

Answer:

F=15

Explanation:

Related Questions

What is the mass of 2.5 mol of Ca, which has a molar mass of 40 g/mol?
If you throw a 0.25-kg ball with a force of 20N what's the acceleration of the ball
Please hurry! 30 pointsA free body diagram of a brick on an inclined plane is shown below. What is the coefficient of friction?
A 1200-nF capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 35 mC/s at some instant in time. (A) What will be the magnitude of the induced magnetic field 10.0 cm radially outward from the center of the plates?
What is it called when air particles spread apart?

A quasi-judicial independent agency has the power to _______. Please select the best answer from the choices provideda. create laws
b. print currency
c. rule on conflicts
d. call Congress into session

Answers

The correct answer is (c.) rule on conflicts. A quasi-judicial independent agency has the power to rule on conflicts. The quasi-judicial body has the power and rights to have the procedures done in terms of resembling the court of law and judge.

A wave x meters long has a speed of y meters per second. The frequency of the wave isa. x/y hertz
c. y x hertz
b. y/x hertz
d. y x hertz

Answers

The correct answer is (b.) y/x hertz. That is because the formula to get the frequency is f =  v / w. The following values (v=y meters / second; wavelength = x meters) must be substituted to the equation, which leaves you y/x hertz.

Answer:

b. y/x hertz

Explanation:

A car's velocity changes from 32m/s to 96m/s in an 8.0-s period. what is its acceleration?

Answers


|Acceleration| = (change in speed) / (time for the change)

Change in speed = (speed at the end) minus (speed at the beginning).

Change in speed = (96 m/s  -  32 m/s)  =  64 m/s

|Acceleration| = (64 m/s) / (8.0 sec) = 8.0 m/s²

This solution is written in terms of speed and the absolute value
of acceleration.  The question gives no information regarding the
direction of motion at any time, so it's not possible to say anything
about velocity, or the direction of acceleration.

What conditions are typcial of the soil the deeper we dig into it?

Answers

When we first dig into soil, it's nice and soft.( Depending on what soil it is; usually topsoil) 

But when we go deeper into it, there are rocks and the soil is harder. There is bedrock at the bottom, subsoil in the middle, and topsoil at the top, which is where we walk.

What is the maxium amount of work that a 6000 watt motor can do in 10 seconds?

Answers

Answer: The work done by the motor is 60000 J

Explanation:

Power is defined as the rate of work done by an object with respect to time.

Mathematically,

P=(W)/(t)

where,

P = power of the motor = 6000 W

W = work done by the motor = ?

t = time taken = 10 sec

Putting values in above equation, we get:

6000W=(W)/(10s)\n\nW=(6000W* 10s)=60000J

Hence, the work done by the motor is 60000 J
Maximum amount of work=60000 Joules

What is the energy of a photon whose frequency is 6.0x10^20 hz?

Answers

Energy of photon is given by formula

E = h\nu

here

h = Planck's constant

h = 6.6* 10^(-34)

\nu = frequency = 6 * 10^(20)Hz

now the energy is given by

E = 6.6*10^(-34) * 6 * 10^(20)

E = 3.96 * 10^(-13) J
give me some answer choices and i will be happy to help
Other Questions
The slope of a line on a distance-time graph is
A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground at a point 65 m horizontally away from and below the point of release. What is the speed of the ball just before it strikes the ground?
A hot air balloon is moving vertically upwards at a velocity of 3m/s. A sandbag is dropped when the balloon reaches 150m. How long does the sandbag take to reach the ground and what is the maximum height it reaches?
You kick a ball with a speed of 14 m/s at an angle of 51°. How far away does the ball land?