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wariber [46]
3 years ago
11

The car travels 52m in 21 seconds before it comes to a complete stop after the driver applies the brakes. What was the car's ini

tial speed?
Physics
1 answer:
prisoha [69]3 years ago
5 0

Answer:

2.48 m/s

Explanation:

D=vt

52 = V 21

V= 52/21=2.47m/s

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A soccer player kicks a ball from the ground with a speed of 16 m/s at an angle of 63°.
stepladder [879]

A. Horizontal component: 7.3 m/s

Explanation:

The horizontal component of the velocity is given by:

v_x = v_0 cos \theta

where

v_0 = 16 m/s is the magnitude of the initial velocity

\theta=63^{\circ} is the angle of the initial velocity with respect to the ground

Substituting numbers into the equation, we find

v_x = (16 m/s) cos 63^{\circ}=7.3 m/s

B. Vertical component: 14.3 m/s

Explanation:

The vertical component of the velocity is given by:

v_y = v_0 sin \theta

where

v_0 = 16 m/s is the magnitude of the initial velocity

\theta=63^{\circ} is the angle of the initial velocity with respect to the ground

Substituting numbers into the equation, we find

v_y = (16 m/s) sin 63^{\circ}=14.3 m/s

6 0
3 years ago
Hi!! This may sound really silly, but I am confused about resistors and currents. I am wondering how the current can have the sa
BartSMP [9]

Yes. True. Resistors slow the current down at the point in the circuit.

Hope it helps you...

( Answered by Benjemin )

5 0
3 years ago
Please write a paragraph (5 sentence minimum) that describes convection in Earth's atmosphere.
ExtremeBDS [4]

Answer:

Earth's crust is covered by a densed air blanket called atmosphere. Due to which we feel warm even during night when there is no sun. The air near the atmosphere is less dense compared to the air near our crust. Similarly we can experience high pressure near the atmosphere comparelatively we experience less pressure near crust. The presence of atmosphere above us makes the wind fair sometimes stromy and also helps in pteperation of wind and breezes in earth's surface.

5 0
3 years ago
Help!
mario62 [17]
Other drivers would be the correct answer
8 0
3 years ago
Match each orbiting body to its attribute.
Anuta_ua [19.1K]

Answer:

Gas Giant- atmosphere primarily made of hydrogen and helium

Asteroid-varies greatly in size from one to the next

Comet-has a characteristic glow

Meteoroid-usually burns up if it enters Earth's

Explanation:

5 0
4 years ago
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