The force of gravity acting on a child's mass on earth is 490 newtons. What's the child's mass? A. 206 kg B. 4,802 kg C. 50 kg D. 800 kg

The density of water is 1.00 g/cm3. What is its density in kg/m3?

Why do we always see the same side of the Moon

How much acceleration is given to a 45kg child with 0.75N push on a swing

When caring for wounds, doctors need to make sure wounds are not infected by bacteria. Which electromagnetic wave would doctors most likely use for this purpose?

When a 83.0 kg. person climbs into an 1600 kg. car, the car's springs compress vertically 1.6 cm. What will be the frequency of vibration when the car hits a bump? (Ignore damping.)

True or false a liquid does not have a definite shape, but it does have a definite volume.

HOw are ferns and trees alike and different and what would survive longer without rain fern or tree

1. Using Pj = e^-BE/Z in the Gibb's form for the entropy, show that F = kb Tln (Z), where F = U - TS is the Helmholtz free energy. Here Z= e^-BE is the canonical partition function ...

Modern oil tankers weigh over a half-million tons and have lengths of up to a quarter of a mile. Such massive ships require a distance of 5.0 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h.

Suppose a yo-yo has a center shaft that has a 0.232 cm radius and that its string is being pulled. If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s 2, what is the angular acceleration of the yo-yo?