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klasskru [66]
2 years ago
15

If you break from the speed in part (c) and then start again from rest, how fast will you be able to drive?

Physics
1 answer:
Nikolay [14]2 years ago
7 0

Speed simply means a scalar quantity that is used to denote how fast a particular object is moving.

<h3>What is speed?</h3>

Your information is incomplete. Therefore, an overview of speed will be given. Speed simply means the rate at which something moves.

The speed of an object is the magnitude of change of its position with time. The speed of an object is calculated as the distance divided by the time taken.

Learn more about speed on:

brainly.com/question/4931057

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If you know any of them, please help!!!!!!
Anna [14]

I believe the answer for 1) is

PEgrav = mass • g • height

PEgrav = m *• g • h

5 0
3 years ago
A 1.0 kg object moving at 4.5 m/s has a wavelength of:
Lisa [10]
By wave particle  duality.

Wavelength , λ = h / mv

where h = Planck's constant = 6.63 * 10⁻³⁴ Js,  m = mass in kg,  v = velocity in m/s.
m = 1kg,  v = 4.5 m/s

λ = h / mv

λ = (6.63 * 10⁻³⁴) /(1*4.5)

λ ≈  1.473 * 10⁻³⁴  m

Option D.
7 0
3 years ago
What is the relation between centre of gravity and stability
maw [93]

Explanation:

tilting it will raise the height of its center of gravity.

8 0
3 years ago
When is the velocity of a mass on a spring at its maximum value?
ehidna [41]

Answer:

A.  when the mass has a displacement of zero

Explanation:

The velocity of a mass on a spring can be calculated by using the law of conservation of energy. In fact, the total energy of the mass-spring system is equal to the sum of the elastic potential energy (U) of the spring and the kinetic energy (K) of the mass:

E=U+K=\frac{1}{2}kx^2 + \frac{1}{2}mv^2

where

k is the spring constant

x is the displacement of the mass with respect to the equilibrium position of the spring

m is the mass

v is the velocity of the mass

Since the total energy E must remain constant, we can notice the following:

- When the displacement is zero (x=0), the velocity must be maximum, because U=0 so K is maximum

- When the displacement is maximum, the velocity must be minimum (zero), because U is maximum and K=0

Based on these observations, we can conclude that the velocity of the mass is at its maximum value when the displacement is zero, so the correct option is A.


8 0
3 years ago
Read 2 more answers
Since astronauts in orbit are apparently weightless, a clever method of measuring their masses is needed to monitor their mass g
monitta

Answer:

55.56kg

Explanation:

Given:

F= 52N

a=0.936m/s²

Applyinc Newton's second law, that states: force is equal to mass times acceleration.

F = ma

m=F/a =>52 / 0.936

m=55.56kg

5 0
3 years ago
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